A dual-laser collaborative preheating melting printing system, method and electronic device

Abstract

The present application discloses a dual-laser collaborative preheating and melting printing system, method and electronic device, and the present application belongs to the technical field of laser 3D printing. The system includes: a power calculation module for calculating the initial preheating laser power and the initial melting laser power; a printing module for controlling a printing device to start printing according to a printing task based on the initial preheating laser power and the initial melting laser power; a power update module for calculating the first dynamic preheating laser power and the first dynamic melting laser power; and a printing adjustment module for dynamically adjusting the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed. This solution can act on two different positions of the printing area simultaneously for parallel processing, improving the printing efficiency. By adjusting the preheating laser and melting laser powers in real time, the temperature stability of the molten pool and the uniform melting of the material can be maintained, improving the printing quality and resource utilization rate.

Description

Technical Field

[0001] This application belongs to the technical field of laser 3D printing, and particularly relates to a dual-laser collaborative preheating and melting printing system, method, and electronic device. Background Art

[0002] In the field of 3D printing technology, especially in laser melting technology, there are extremely high requirements for the forming efficiency, accuracy, and quality of parts. When traditional single-laser melting printing systems are faced with the manufacturing of parts with complex structures and high-performance requirements, there are problems such as low efficiency, easy occurrence of part warping, cracking, and other defects. These problems not only affect the quality of printed parts but also limit the application of 3D printing technology in a wider range of fields.

[0003] Nowadays, single-laser melting printing systems are mostly used in the field of 3D printing technology. The single-laser melting printing system is based on the interaction between high-energy laser beams and metal powder, and is based on the three-dimensional data model of the part to be made. The model is discretized into layer data through layer software and input into a metal 3D printer. The system uses a fiber laser with a high power density and a fine focusing spot as the energy source, and controls the laser beam with a selective scanning path. The laser beam rapidly scans the pre-spread metal powder in the selected area in a shallow melting manner. The laser beam rapidly melts the metal powder and obtains continuous melt tracks, and stacks them layer by layer into a metal part.

[0004] However, when the single-laser melting printing system is faced with parts with large areas or complex structures, due to limitations such as the scanning speed and power of the laser beam, the forming efficiency is low, and it cannot meet the requirements of high-efficiency production. Therefore, there is an urgent need for a dual-laser collaborative preheating and melting printing system that simultaneously uses two laser beams, significantly improves the printing efficiency, optimizes the control of thermal stress, and improves the uniformity of energy distribution. And it provides the possibility for the rapid production of large parts and the high-quality printing of complex-shaped parts, while enhancing the flexibility and adaptability of the printing process. Summary of the Invention

[0005] The embodiments of this application provide a dual-laser collaborative preheating and melting printing system, method, and electronic device, which solve the problem that when traditional single-laser melting printing systems are faced with parts with large areas or complex structures, due to limitations such as the scanning speed and power of the laser beam, the forming efficiency is low and it cannot meet the requirements of high-efficiency production.

[0006] In the first aspect, the embodiments of this application provide a dual-laser collaborative preheating and melting printing system, and the system includes:

[0007] A power calculation module, which is used to, if a printing task is received, obtain the material temperature, determine the scanning speed, laser angle, and laser spacing according to the printing task, and calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, a preset initial preheating laser power calculation formula, and a preset initial melting laser power calculation formula;

[0008] A printing module, which is used to control a printing device to start printing according to the printing task according to the initial preheating laser power and the initial melting laser power;

[0009] A power update module, which is used to, if a preset update time interval is reached, update the scanning speed and the material temperature, and calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, a preset first dynamic preheating laser power calculation formula, and a preset first dynamic melting laser power calculation formula;

[0010] A printing adjustment module, which is used to adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power, recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval is reached, and re-adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed.

[0011] Further, the preset initial preheating laser power calculation formula is:

[0012]

[0013] Among them, is the initial preheating laser power; is the material temperature; is the scanning speed; is the laser angle; d is the laser spacing; () is a function that includes the comprehensive influence of parameters such as the material temperature, scanning speed, laser angle, and laser spacing;

[0014] The preset initial melting laser power calculation formula is:

[0015]

[0016] Among them, is the initial melting laser power;

[0017] The preset first dynamic preheating laser power calculation formula is:

[0018]

[0019] Among them, is the first dynamic preheating laser power; is the updated material temperature; is the updated scanning speed; t is the time point corresponding to the preset update time interval; () is the calculation function of the first dynamic preheating laser power;

[0020] The preset calculation formula for the first dynamic melting laser power is:

[0021]

[0022] Among them, is the first dynamic melting laser power; g () is the calculation function of the first dynamic melting laser power.

[0023] Furthermore, the system further includes a printing re-adjustment module, and the printing re-adjustment module is used for:

[0024] Calculate the first temperature influence parameter of the first dynamic preheating laser power at the preset spatial position of the molten pool according to the first dynamic preheating laser power and the preset preheating laser temperature influence formula;

[0025] Calculate the second temperature influence parameter of the first dynamic melting laser power at the preset spatial position of the molten pool according to the first dynamic melting laser power and the preset melting laser temperature influence formula;

[0026] Calculate the comprehensive temperature of the molten pool according to the first temperature influence parameter and the second temperature influence parameter;

[0027] Calculate the second dynamic preheating laser power and the second dynamic melting laser power according to the comprehensive temperature, the first dynamic preheating laser power and the first dynamic melting laser power;

[0028] Correspondingly, the power update module is used for:

[0029] Adjust the printing process of the printing device according to the adjusted first dynamic preheating laser power and the first dynamic melting laser power, recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval, and recalculate the comprehensive temperature of the molten pool, and update the second dynamic preheating laser power and the second dynamic melting laser power according to the recalculated comprehensive temperature, the first dynamic preheating laser power and the first dynamic melting laser power, and adjust the printing process of the printing device according to the second dynamic preheating laser power and the second dynamic melting laser power until the printing task is completed.

[0030] Furthermore, the preset preheating laser temperature influence formula is:

[0031]

[0032] Among them, is the first temperature influence parameter; preheat is the preset preheating laser attenuation factor; (x, y, z) are the three-dimensional coordinates of the preset spatial position;

[0033] The preset melting laser temperature influence formula is

[0034]

[0035] Among them, is the second temperature influence parameter; melt is the preset melting laser attenuation factor.

[0036] Furthermore, the printing adjustment module is used for:

[0037] Calculating the deviation temperature according to the comprehensive temperature and the preset molten pool target temperature, and calculating the second dynamic preheating laser power according to the deviation temperature, the first dynamic preheating laser power, and the preset dynamic preheating laser power adjustment formula;

[0038] Calculating the second dynamic melting laser power according to the deviation temperature, the first dynamic melting laser power, and the preset dynamic melting laser power adjustment formula.

[0039] Furthermore, the preset dynamic preheating laser power adjustment formula is:

[0040]

[0041] Among them, is the second dynamic preheating laser power;

[0042] is a function for adjusting the preheating laser power based on the deviation temperature at each position (x, y, z) and each time point (t);

[0043] The preset dynamic melting laser power adjustment formula is:

[0044]

[0045] Among them, is the second dynamic melting laser power;

[0046] is a function for adjusting the melting laser power based on the deviation temperature at each position (x, y, z) and each time point (t).

[0047] Furthermore, the system further includes a fault detection module, and the fault detection module is used for:

[0048] Obtain the operating parameters of the printing device in real time, input the operating parameters into a preset fault detection model, and determine whether there is a fault risk;

[0049] If there is a fault risk, output the fault type through the preset fault detection model, and transmit the fault type to the control center.

[0050] In a second aspect, an embodiment of the present application provides a dual-laser collaborative preheating and melting printing method, and the method includes:

[0051] If a printing task is received, determine the material temperature, scanning speed, laser angle, and laser spacing according to the printing task, and calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, a preset initial preheating laser power calculation formula, and a preset initial melting laser power calculation formula;

[0052] Control the printing device to start printing according to the printing task according to the initial preheating laser power and the initial melting laser power;

[0053] If the preset update time interval is reached, update the scanning speed and the material temperature, and calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, a preset first dynamic preheating laser power calculation formula, and a preset first dynamic melting laser power calculation formula;

[0054] Adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power, recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval is reached, and readjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed.

[0055] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0056] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the second aspect are implemented.

[0057] In the embodiment of the present application, a power calculation module is configured to, if a printing task is received, obtain the material temperature, determine the scanning speed, laser angle, and laser spacing according to the printing task, and calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, a preset initial preheating laser power calculation formula, and a preset initial melting laser power calculation formula; a printing module is configured to control a printing device to start printing according to the printing task based on the initial preheating laser power and the initial melting laser power; a power update module is configured to update the scanning speed and the material temperature if a preset update time interval is reached, and calculate a first dynamic preheating laser power and a first dynamic melting laser power according to the updated scanning speed, the updated material temperature, a preset first dynamic preheating laser power calculation formula, and a preset first dynamic melting laser power calculation formula; a printing adjustment module is configured to adjust the printing process of the printing device based on the first dynamic preheating laser power and the first dynamic melting laser power, recalculate the first dynamic preheating laser power and the first dynamic melting laser power every time the preset update time interval is reached, and readjust the printing process of the printing device based on the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed. Through the above dual-laser collaborative preheating and melting printing system, the dual-laser system can simultaneously act on two different positions of the printing area for parallel processing, significantly improving the printing efficiency. By adjusting the preheating laser and melting laser powers in real time, the temperature stability of the molten pool and the uniform melting of the material can be maintained, improving the printing quality and resource utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 FIG. is a schematic structural diagram of a dual-laser collaborative preheating and melting printing system provided in Embodiment 1 of the present application;

[0059] Figure 2 FIG. is a schematic structural diagram of a dual-laser collaborative preheating and melting printing system provided in Embodiment 2 of the present application;

[0060] Figure 3 FIG. is a schematic flowchart of a dual-laser collaborative preheating and melting printing method provided in Embodiment 3 of the present application;

[0061] Figure 4 FIG. is a schematic structural diagram of an electronic device provided in Embodiment 4 of the present application. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of this application clearer, the following provides a more detailed description of specific embodiments of this application with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are merely for explaining this application and not for limiting this application. Additionally, it should be noted that for ease of description, only parts related to this application are shown in the drawings rather than all the content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operations are completed, but it can also have additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0063] The following will clearly describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of this application.

[0064] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0065] The following will, with reference to the accompanying drawings, provide a detailed description of a dual-laser collaborative preheating melting printing system, method, and electronic device provided in the embodiments of this application through specific embodiments and their application scenarios.

[0066] Embodiment 1

[0067] Figure 1 It is a schematic structural diagram of the dual-laser collaborative preheating melting printing system provided in Embodiment 1 of this application. As Figure 1 shown, it specifically includes the following:

[0068] The power calculation module 101 is configured to, if a printing task is received, determine the material temperature, scanning speed, laser angle, and laser spacing according to the printing task, and calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, a preset initial preheating laser power calculation formula, and a preset initial melting laser power calculation formula;

[0069] The printing module 102 is configured to control the printing device to start printing according to the printing task based on the initial preheating laser power and the initial melting laser power;

[0070] The power update module 103 is configured to, if a preset update time interval is reached, update the scanning speed and the material temperature, and calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, a preset first dynamic preheating laser power calculation formula, and a preset first dynamic melting laser power calculation formula;

[0071] The printing adjustment module 104 is configured to adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power, recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval is reached, and readjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed.

[0072] In this embodiment, the printing task may refer to specific task parameters formulated according to user requirements or production needs, and is used to guide the 3D printing device to complete specific goals. For example: printing materials (such as metals, ceramics, or plastics), printing geometric shapes and dimensions, printing layer thickness and precision requirements, working environment parameters (such as room temperature or gas environment), and special process requirements (such as multi-material printing, functionally graded materials).

[0073] The material temperature may refer to the initial temperature or the real-time temperature of the material during the printing process, which affects the melting, cooling, and forming quality of the material.

[0074] The scanning speed may be the speed at which the laser beam or the print head moves on the surface of the material, usually measured in millimeters per second (mm / s).

[0075] The laser angle may be the angle between the laser beam and the surface of the printing material, which affects the effective projection area and energy distribution of the laser.

[0076] The laser spacing may be the distance between adjacent laser scanning paths, which affects the printing quality and efficiency.

[0077] The preset initial preheating laser power calculation formula can be used to calculate the power requirement for laser preheating in the initial stage.

[0078] The preset initial melting laser power calculation formula can be used to calculate the power requirement for the laser in the initial melting stage.

[0079] The initial preheating laser power can refer to the laser power value set at the start of a printing task to preheat the printing material to a temperature suitable for melting.

[0080] The initial melting laser power refers to the energy output of the laser used to melt the material at the start of printing. It directly affects the formation of the molten pool and the bonding quality of the printed layers.

[0081] Parameters in the printing task, such as the target material type, printing structure, and environmental requirements, can be extracted. The initial temperature of the material is obtained in real time through environmental sensors, thermal imaging devices, or the built-in monitoring module of the printer. Then, based on the geometry of the printing task, material properties, and quality requirements, the scanning speed, laser angle, and laser spacing are determined. Specifically, the scanning speed is adjusted according to the material's thermal conductivity, target accuracy, and the size of the printing area. The laser angle is optimized based on the inclination and surface characteristics of the printing surface to ensure uniform heat. The laser spacing is determined by the material's melting characteristics, layer thickness requirements, and overlap rate to achieve a balance between printing accuracy and efficiency. These parameters can be optimized through simulation, experiments, or machine learning models and adjusted in real time during printing to meet the task requirements. Then, the material temperature, scanning speed, laser angle, and laser spacing are respectively substituted into the preset initial preheating laser power calculation formula and the preset initial melting laser power calculation formula to obtain the initial preheating laser power and the initial melting laser power.

[0082] The printing device can refer to an additive manufacturing device used to complete the dual-laser collaborative preheating and melting printing task. Specifically, it includes a dual-laser system: including a preheating laser and a melting laser, used to preheat and melt the material respectively. A motion control system: controls the precise movement of the laser head and the printing platform to achieve precise scanning and processing. A sensor module: monitors the temperature, molten pool morphology, and printing quality. Control software: used to receive the printing task, calculate the power parameters, and execute the control logic of the printing process. A material supply system: provides the printing material (such as metal powder or wire).

[0083] The dual-laser system can be activated to ensure that the preheating laser and the melting laser are in an operable state. Load the required materials according to the printing task and calibrate the motion control system to match the geometric requirements of the task. Then input the initial preheating laser power and the initial melting laser power calculated based on the material temperature, scanning speed, laser angle, and laser spacing. Transfer the power parameters to the control software and set the initial scanning path and printing area. Start the preheating laser system along the set path to scan the printing area at a lower power, gradually raising the temperature to reduce the temperature gradient and stress concentration. At the same time, monitor the temperature distribution in the preheating area to ensure that the set preheating target is achieved. In the preheating area, start the melting laser system to perform precise melting at a higher power to complete the material melting and solidification process. Adjust the angle and path of the melting laser to ensure coverage of the printing surface and achieve a high bonding strength. Coordinate the working rhythms of the preheating laser and the melting laser to achieve continuous heating and melting. Synchronize the movement paths and power changes of the two lasers through the control software to ensure uniform temperature and a stable molten pool throughout the printing area.

[0084] The power update module in this solution is responsible for dynamic power calculation, and the printing adjustment module is responsible for adjusting the printing device according to the calculation results.

[0085] The preset update time interval can be the time period specified in the system, which is used to periodically re-evaluate the parameters during the printing process and make dynamic adjustments.

[0086] The preset first dynamic preheating laser power calculation formula and the first dynamic melting laser power calculation formula can be mathematical models for calculating the laser power based on real-time monitoring data and update parameters.

[0087] The first dynamic preheating laser power can be the new power value of the preheating laser under dynamic conditions, which is used to maintain the preheating effect when the material update temperature and scanning speed change.

[0088] The first dynamic melting laser power can be the new power value of the melting laser under dynamic conditions, which is used to ensure complete melting of the material and form a high-quality bonding layer.

[0089] When each preset update time interval arrives, the current scanning speed and material temperature can be detected in real time through sensors. Then input the updated scanning speed and the updated material temperature into the preset first dynamic preheating laser power calculation formula and the preset first dynamic melting laser power calculation formula to obtain the first dynamic preheating laser power and the first dynamic melting laser power.

[0090] During the printing process, adjustments can be triggered according to a preset update time interval. By continuously monitoring parameters such as the material temperature and scanning speed, the laser power values are recalculated using the calculation formulas for the dynamic preheating laser power and the dynamic melting laser power. Based on the calculation results, the output powers of the preheating laser and the melting laser are dynamically adjusted to ensure a stable molten pool temperature, sufficient melting of the material, and uniform cooling. The monitoring, calculation, and adjustment are repeated after each interval until the printing task is completed, so as to achieve a high-quality dual-laser collaborative printing effect.

[0091] In the embodiment of the present application, a power calculation module is configured to, if a printing task is received, obtain the material temperature, determine the scanning speed, laser angle, and laser spacing according to the printing task, and calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, a preset initial preheating laser power calculation formula, and a preset initial melting laser power calculation formula.

[0092] A printing module is configured to control a printing device to start printing according to the printing task based on the initial preheating laser power and the initial melting laser power; a power update module is configured to, if a preset update time interval is reached, update the scanning speed and the material temperature, and calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, a preset first dynamic preheating laser power calculation formula, and a preset first dynamic melting laser power calculation formula; a printing adjustment module is configured to adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power, recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval is reached, and readjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed. Through the above dual-laser collaborative preheating and melting printing system, the dual-laser system can simultaneously act on two different positions in the printing area for parallel processing, significantly improving the printing efficiency. By dynamically adjusting the powers of the preheating laser and the melting laser, the stability of the molten pool temperature and the uniform melting of the material can be maintained, improving the printing quality and resource utilization rate.

[0093] Based on the above technical solution, optionally, the preset initial preheating laser power calculation formula is:

[0094]

[0095] Wherein, is the initial preheating laser power; is the material temperature; is the scanning speed; is the laser angle; d is the laser spacing; () is a function that incorporates the combined effects of parameters such as material temperature, scanning speed, laser angle, and laser spacing;

[0096] The formula for the preset initial melting laser power is:

[0097]

[0098] Wherein, is the initial melting laser power;

[0099] The formula for the preset first dynamic preheating laser power is:

[0100]

[0101] Wherein, is the first dynamic preheating laser power; is the updated material temperature; is the updated scanning speed; t is the time point corresponding to the preset update time interval; () is the calculation function of the first dynamic preheating laser power;

[0102] The formula for the preset first dynamic melting laser power is:

[0103]

[0104] Wherein, is the first dynamic melting laser power; g () is the calculation function of the first dynamic melting laser power.

[0105] In this solution, is a multi-variable function that involves the temperature, scanning speed, laser angle, and laser spacing of the material. This function is used to calculate the adjustment coefficient of the preheating laser power and may include the following factors:

[0106] Material temperature: The temperature of the material directly affects the laser power requirement. A lower material temperature requires more power for heating, and when the temperature is higher, the power requirement decreases.

[0107] Scanning speed: The faster the scanning speed, the shorter the residence time of the laser on the material surface, resulting in less energy per unit area. Therefore, a higher scanning speed requires more power to ensure that the material can obtain sufficient energy.

[0108] Laser angle: The laser angle affects the area and energy distribution of the laser beam irradiating the material surface. A smaller angle (i.e., the laser beam is more parallel) may cause the energy to be concentrated, and a larger angle may disperse the energy. Therefore, the laser angle affects the distribution and efficiency of the laser power.

[0109] Laser spacing: The spacing of lasers refers to the distance between laser beams, which is usually related to the scanning path. A larger spacing means a larger action area for each laser beam, and less power may be required; a smaller spacing may lead to an increase in power density.

[0110] Then The form can be:

[0111]

[0112] Among them, is the highest temperature that the material can withstand; is the maximum scanning speed that the printing device can achieve; is the upper limit of the maximum power that the printing device can provide; a, b, c are adjustment factors used to characterize the influence degrees of material temperature, scanning speed, laser angle and laser spacing on the initial preheating laser power, and their values reflect the sensitivity degrees of each parameter to the adjustment of the initial preheating laser power during the actual printing process; reflects the influence of material temperature on the initial preheating laser power; reflects the influence of scanning speed on the initial preheating laser power; reflects the adjustment of laser angle and spacing on the initial preheating laser power.

[0113] Since the initial preheating laser power and the initial melting laser power are usually complementary to each other, they cannot completely overlap at the same time point. The initial preheating laser power helps to heat the material, while the initial melting laser power focuses on melting the material. in the formula describes the requirement for the initial preheating laser power during the preheating process, while represents the energy required for the melting process.

[0114] is a function for dynamically adjusting the preheating laser power, and the form can be:

[0115]

[0116] Among them, d, e are control factors, and these parameters are obtained through experimental data or theoretical derivation, reflecting the influence degrees of temperature and scanning speed on the dynamically preheated laser power.

[0117] can be a function for dynamically adjusting the melting laser power, and the form can be:

[0118]

[0119] Among them, f and g are empirical adjustment factors used to control the influence degrees of temperature and scanning speed on the dynamic melting laser power, which are usually obtained based on experiments or numerical simulations.

[0120] During the dynamic printing process, the material temperature and scanning speed are constantly changing. Therefore, it is necessary to adjust the laser power according to real-time conditions to ensure the continuity and stability of the printing process. In dynamic calculations, the melting power is not just the negative of the preheating power. Due to factors such as temperature and speed in the dynamic process, which may lead to asymmetric changes in the laser power requirements, a more flexible adjustment mechanism for the melting laser power is needed. And g () is a function that changes based on time and can accurately capture the dynamic changes of these factors. Therefore, its form is not 1 - .

[0121] Based on the above technical solution, optionally, the system further includes a fault detection module, and the fault detection module is used for:

[0122] Obtaining the operation parameters of the printing device in real time, inputting the operation parameters into a preset fault detection model, and determining whether there is a fault risk;

[0123] If there is a fault risk, output the fault type through the preset fault detection model, and transmit the fault type to the control center.

[0124] In this solution, the operation parameters can refer to various types of data and status information obtained in real time during the operation of the printing device. Specifically, it can include temperature data: such as the molten pool temperature, laser head temperature, melting area temperature, etc. Speed parameters: such as scanning speed, printing speed, etc. Power parameters: such as laser power, preheating power, melting power, etc. Mechanical state data: such as the motion state of the device, acceleration, vibration, etc. Current and voltage data: the current and voltage of the device's electrical system. Environmental data: such as humidity, air pressure, etc.

[0125] The preset fault detection model can be a model established through methods such as machine learning, data mining, or physical modeling, and is used to monitor and analyze the operation data of the printing device in real time to identify potential fault risks. Specifically, it can include supervised learning models: such as support vector machine (SVM), random forest (Rf), neural network, etc., which use labeled data (such as normal / fault samples) to train the model and predict whether the device is faulty by inputting the operation parameters. Unsupervised learning models: such as clustering analysis and anomaly detection methods, which can detect abnormal situations that deviate from the normal mode by learning the data patterns of the device during normal operation. Rule-based models: combining physical laws and expert experience to judge whether the device is in a faulty state based on preset rules.

[0126] The failure risk can refer to the probability or likelihood of a device failing in its current operating state. Based on the detected operating parameters and a preset failure detection model, it is determined whether the device shows signs of deviating from the normal state. If there are obvious deviations or anomalies, the model output will indicate "failure risk exists".

[0127] The failure type can refer to the specific failure categories that occur in the device. The output of the failure type can be hardware failures: such as sensor failures, motor failures, laser head failures, etc. Software failures: such as control system errors, program crashes, etc. Temperature anomalies: such as too high or too low molten pool temperature, insufficient laser power, etc. Electrical failures: such as abnormal voltage, current, etc.

[0128] The control center can be a central system responsible for receiving, processing, and responding to device failure information.

[0129] The operating state of the printing device can be continuously monitored through various sensors, and the operating parameters are transmitted to the failure detection system in real time. Through a communication interface (such as an API or data stream transmission), the collected operating parameters are input into a preset failure detection model. The model evaluates in real time whether the input operating parameters are within the normal range and identifies whether there is a failure risk. If the model detects abnormal operating parameters or deviations from the normal range, it is determined that there is a failure risk, and the probability or category of the failure risk is returned. If there is a failure risk, the failure detection model will identify the specific failure type and transmit the failure type information to the control center. After receiving the failure type information, the control center can trigger corresponding emergency handling mechanisms, such as alarms, shutdown instructions, maintenance requests, etc.

[0130] The steps of model training can include:

[0131] Collect a large amount of operating data of the device in normal and faulty states. Normal data includes various operating parameters of the device under normal operating conditions; faulty data includes parameter changes when the device fails. Clean and normalize the data, dealing with missing values, outliers, and noisy data. Extract features from the data, extracting information that helps predict failures, such as the rate of change of device temperature, power fluctuations, etc. Select a suitable machine learning algorithm, such as support vector machine (SVM), decision tree, neural network, etc., as the model basis for failure detection. Then use the collected labeled data (normal and faulty) for supervised learning to train the model. The model adjusts weights or parameters to minimize the difference between the predicted result and the true result. Use a validation dataset to evaluate the performance of the model. Common evaluation metrics include accuracy, recall rate, f1 score, etc. Ensure the generalization ability of the model through methods such as cross-validation. Adjust the parameters of the model according to the evaluation results to optimize the model performance and prevent overfitting or underfitting. Finally, deploy the trained failure detection model to the monitoring system of the printing device for real-time monitoring and failure prediction.

[0132] In this solution, through real-time monitoring and fault detection, potential problems can be detected in a timely manner before the device fails. Taking measures in advance can reduce the risk of device downtime and extend the service life of the device.

[0133] Embodiment 2

[0134] Figure 2 is a schematic structural diagram of the dual-laser collaborative preheating and melting printing system provided in Embodiment 2 of the present application. As Figure 2 shown, it specifically includes the following:

[0135] The system further includes a printing readjustment module 105, and the printing readjustment module 105 is used for:

[0136] According to the first dynamic preheating laser power and the preset preheating laser temperature influence formula, calculate the first temperature influence parameter of the first dynamic preheating laser power at the preset spatial position of the molten pool;

[0137] According to the first dynamic melting laser power and the preset melting laser temperature influence formula, calculate the second temperature influence parameter of the first dynamic melting laser power at the preset spatial position of the molten pool;

[0138] Calculate the comprehensive temperature of the molten pool according to the first temperature influence parameter and the second temperature influence parameter;

[0139] According to the comprehensive temperature, the first dynamic preheating laser power, and the first dynamic melting laser power, calculate the second dynamic preheating laser power and the second dynamic melting laser power;

[0140] Correspondingly, the power update module is used for:

[0141] Adjust the printing process of the printing device according to the adjusted first dynamic preheating laser power and the first dynamic melting laser power. After each preset update time interval, recalculate the first dynamic preheating laser power and the first dynamic melting laser power, and recalculate the comprehensive temperature of the molten pool. Then, according to the recalculated comprehensive temperature, the first dynamic preheating laser power, and the first dynamic melting laser power, update the second dynamic preheating laser power and the second dynamic melting laser power, and adjust the printing process of the printing device according to the second dynamic preheating laser power and the second dynamic melting laser power until the printing task is completed.

[0142] In this embodiment, the preset preheating laser temperature influence formula may refer to a formula for determining the influence degree of the preheating laser power on the material temperature according to the material temperature, the laser power, and other factors. In laser printing, the adjustment of the preheating laser power is to ensure that the material reaches an appropriate temperature for the subsequent melting process.

[0143] The preset melting laser temperature influence formula can be a formula used to describe the influence of the melting laser power on the temperature of the molten pool. Similar to the influence of the preheating laser power, the melting laser power also affects the local temperature distribution of the molten pool.

[0144] The molten pool can refer to the liquid region formed by the melting of materials due to the high temperature during the laser heating process. The molten pool is a key part of the laser printing process, and its temperature and shape have an important impact on the final printing quality. The temperature of the molten pool determines whether the melting process is uniform, thus affecting the solidification, density, and forming quality of the material.

[0145] The preset spatial position can be a specific position within the molten pool area, usually defined based on the coordinate system of the printing path or printing area. These positions are specific points used to analyze the influence of the laser power, and can accurately calculate the temperature change at that point. The selection of the preset spatial position helps to analyze and control the temperature distribution of the molten pool during the printing process.

[0146] The first temperature influence parameter can describe how the laser power in the preheating stage affects the temperature of the area around the molten pool, and reflects the temperature contribution of each stage through a certain calculation formula.

[0147] The second temperature influence parameter can describe the influence of the laser power in the melting stage on the temperature of the molten pool, and reflects the temperature contribution of each stage through a certain calculation formula.

[0148] The comprehensive temperature can refer to the temperature of the molten pool and its surrounding area under the comprehensive influence of the first dynamic preheating laser power and the first dynamic melting laser power. The comprehensive temperature can be obtained by adding the temperature influences generated in different stages (preheating, melting), that is, by adding the first temperature influence parameter and the second temperature influence parameter.

[0149] The first dynamic preheating laser power can be substituted into the preset preheating laser temperature influence formula to calculate the first temperature influence parameter, and the first dynamic melting laser power can be substituted into the preset melting laser temperature influence formula to calculate the second temperature influence parameter. Then, the first temperature influence parameter and the second temperature influence parameter are added to obtain the comprehensive temperature. According to the comprehensive temperature and the known power requirements, the second dynamic preheating laser power and the second dynamic melting laser power are calculated. This step usually considers the influence of temperature changes on the material and the behavior of the molten pool to dynamically adjust the laser power to ensure the stability and efficiency of the printing process.

[0150] During the printing process, based on the adjusted first dynamic preheating laser power and first dynamic melting laser power, after each preset update time interval, recalculate these two power values and the comprehensive temperature of the molten pool. By calculating the temperature influence parameters of each region, after obtaining the comprehensive temperature, calculate the second dynamic preheating and melting laser powers based on this temperature. Then, adjust the laser output of the printing device according to the updated power values to ensure effective control of the molten pool temperature and material properties. Finally, through continuous iterative adjustment until the printing task is completed, thereby optimizing the printing quality and process stability.

[0151] In this embodiment, by calculating the temperature influence parameters of the first dynamic preheating laser power and the first dynamic melting laser power at different positions in the molten pool, precise control of the temperature in the molten pool region can be achieved. By dynamically adjusting the preheating and melting laser powers to ensure uniform temperature distribution, it helps to improve the melting uniformity of the material, reduce printing defects, and enhance the overall printing quality. And it can avoid excessive energy waste and increase the printing speed. While maintaining the printing quality, it can improve the material utilization rate and production efficiency.

[0152] Based on the above technical solution, optionally, the preset preheating laser temperature influence formula is:

[0153]

[0154] Wherein, is the first temperature influence parameter; preheat is the preset preheating laser attenuation factor; (x, y, z) is the three-dimensional coordinate of the preset spatial position;

[0155] The preset melting laser temperature influence formula is

[0156]

[0157] Wherein, is the second temperature influence parameter; melt is the preset melting laser attenuation factor.

[0158] Based on the above technical solution, optionally, the printing adjustment module is used for:

[0159] Calculate the deviation temperature according to the comprehensive temperature and the preset target temperature of the molten pool, and calculate the second dynamic preheating laser power according to the deviation temperature, the first dynamic preheating laser power, and the preset dynamic preheating laser power adjustment formula;

[0160] Calculate the second dynamic melting laser power according to the deviation temperature, the first dynamic melting laser power, and the preset dynamic melting laser power adjustment formula.

[0161] In this solution, the deviation temperature can refer to the difference between the actual temperature of the molten pool and the preset target temperature. It reflects the degree of deviation between the actual temperature and the ideal temperature.

[0162] The preset target temperature of the molten pool can be a target value set according to the ideal temperature range required during the printing process. This target temperature is usually obtained by comprehensively considering factors such as material properties, printing speed, and laser power.

[0163] The preset dynamic preheating laser power adjustment formula can be a method for adjusting the preheating laser power based on the actual temperature deviation of the current molten pool.

[0164] The preset dynamic melting laser power adjustment formula can adjust the melting laser power according to the deviation temperature to ensure the stability of the molten pool during the melting stage.

[0165] The deviation temperature can be obtained by comparing the difference between the actually calculated temperature of the molten pool and the preset target temperature. Then, the deviation temperature and the first dynamic preheating laser power are substituted into the preset dynamic preheating laser power adjustment formula to obtain the second dynamic preheating laser power. The deviation temperature and the first dynamic melting laser power are substituted into the preset dynamic melting laser power adjustment formula to obtain the second dynamic melting laser power.

[0166] In this solution, precise temperature control can improve the speed of the printing process because it can avoid repeated adjustments caused by overheating or underheating. This efficient power adjustment not only improves the printing quality but also increases production efficiency, reducing printing time and costs.

[0167] Based on the above technical solution, optionally, the preset dynamic preheating laser power adjustment formula is:

[0168]

[0169] Where, is the second dynamic preheating laser power;

[0170] is a function for adjusting the preheating laser power based on the deviation temperature at each position (x, y, z) and each time point (t);

[0171] The preset dynamic melting laser power adjustment formula is:

[0172]

[0173] Where, is the second dynamic melting laser power;

[0174] A function for adjusting the melting laser power based on the deviation temperature at each position (x, y, z) and each time point (t).

[0175] In this solution, It can reflect the non-linear effect of temperature deviation on power adjustment, and the form can be:

[0176]

[0177] Wherein, is a constant that controls the rate of influence of temperature deviation on the adjustment of preheating laser power. This functional form enables the adjustment of power to become more significant as the temperature deviation increases, and the greater the deviation, the faster the power changes.

[0178] It can reflect the non-linear effect of temperature deviation on power adjustment and is commonly used in situations where the control response is faster. The form can be:

[0179]

[0180] Wherein, is a constant that controls the rate of influence of temperature deviation on the adjustment of melting laser power. As the temperature deviation increases, the adjustment of power will become more significant, and the greater the temperature deviation, the faster the power changes.

[0181] Embodiment III

[0182] Figure 3 is a schematic flow diagram of the dual-laser collaborative preheating and melting printing method provided in Embodiment III of this application. As Figure 3 shown, it specifically includes the following steps:

[0183] S301, if a printing task is received, determine the material temperature, scanning speed, laser angle, and laser spacing according to the printing task. Calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, the preset initial preheating laser power calculation formula, and the preset initial melting laser power calculation formula.

[0184] S302, control the printing device to start printing according to the printing task based on the initial preheating laser power and the initial melting laser power.

[0185] S303, if the preset update time interval is reached, update the scanning speed and the material temperature. Calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, the preset first dynamic preheating laser power calculation formula, and the preset first dynamic melting laser power calculation formula.

[0186] S304. Adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power. After each preset update time interval, recalculate the first dynamic preheating laser power and the first dynamic melting laser power, and readjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed.

[0187] In the embodiment of the present application, if a printing task is received, determine the material temperature, scanning speed, laser angle, and laser spacing according to the printing task. Calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, a preset initial preheating laser power calculation formula, and a preset initial melting laser power calculation formula. Control the printing device to start printing according to the printing task based on the initial preheating laser power and the initial melting laser power. If the preset update time interval is reached, update the scanning speed and the material temperature, and calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, a preset first dynamic preheating laser power calculation formula, and a preset first dynamic melting laser power calculation formula. Adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power. After each preset update time interval, recalculate the first dynamic preheating laser power and the first dynamic melting laser power, and readjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed. Through the above dual-laser collaborative preheating and melting printing method, the dual-laser system can act on two different positions of the printing area simultaneously for parallel processing, significantly improving the printing efficiency. By adjusting the preheating laser and melting laser powers in real time, the temperature stability of the molten pool and the uniform melting of the material can be maintained, improving the printing quality and resource utilization rate.

[0188] A dual-laser collaborative preheating and melting printing method provided by an embodiment of the present application corresponds to the systems provided in the above embodiments and has corresponding execution processes and beneficial effects, which will not be elaborated here.

[0189] Embodiment 4

[0190] As Figure 4 shown, an embodiment of the present application further provides an electronic device 400, including a processor 401, a memory 402, and a program or instruction stored on the memory 402 and executable on the processor 401. When the program or instruction is executed by the processor 401, it implements each process of the above dual-laser collaborative preheating and melting printing system method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0191] It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

[0192] Embodiment 5

[0193] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-described adaptive control system for cable installation based on tension, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0194] Wherein, the processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disc, etc.

[0195] It should be noted that in this article, the term "including", "comprising", or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or system including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or system including that element. In addition, it should be pointed out that the scope of the methods and systems in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0196] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases, the former is a better implementation method. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0197] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

[0198] The above is only the preferred embodiment of the present application and the technical principles applied. The present application is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the concept of the present application, it may also include more other equivalent embodiments, and the scope of the present application is determined by the scope of the claims.

Claims

1. A dual-laser collaborative preheating and melting printing system, characterized in that The system includes: A power calculation module, which is configured to, if a printing task is received, obtain the material temperature, determine the scanning speed, laser angle, and laser spacing according to the printing task, and calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, a preset initial preheating laser power calculation formula, and a preset initial melting laser power calculation formula; A printing module, which is configured to control a printing device to start printing according to the printing task according to the initial preheating laser power and the initial melting laser power; A power update module, which is configured to, if a preset update time interval is reached, update the scanning speed and the material temperature, and calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, a preset first dynamic preheating laser power calculation formula, and a preset first dynamic melting laser power calculation formula; A printing adjustment module, which is configured to adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power, recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval is reached, and readjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed.

2. The dual-laser collaborative preheating and melting printing system according to claim 1, wherein The preset initial preheating laser power calculation formula is: Among them, is the initial preheating laser power; is the material temperature; is the scanning speed; is the laser angle; d is the laser spacing; () is a function that includes the combined effects of the material temperature, scanning speed, laser angle, and laser spacing parameters; among them, The form of is: Among them, is the highest temperature that the material can withstand; is the maximum scanning speed that the printing device can achieve; is the upper limit of the maximum power that the printing device can provide; a, b, and c are adjustment factors used to characterize the influence of material temperature, scanning speed, laser angle, and laser spacing on the initial preheating laser power, and their values reflect the sensitivity of each parameter to the adjustment of the initial preheating laser power during the actual printing process; reflects the influence of material temperature on the initial preheating laser power; reflects the influence of scanning speed on the initial preheating laser power; reflects the adjustment of laser angle and spacing on the initial preheating laser power; The preset initial melting laser power calculation formula is: Among them, is the initial melting laser power; The preset first dynamic preheating laser power calculation formula is: Among them, is the first dynamic preheating laser power; is the updated material temperature; is the updated scanning speed; t is the time point corresponding to the preset update time interval; () is the calculation function of the first dynamic preheating laser power; Among them, Where d and e are control factors, reflecting the influence degrees of temperature and scanning speed on the dynamic preheating laser power; The preset first dynamic melting laser power calculation formula is: Among them, is the first dynamic melting laser power; g () is the calculation function of the first dynamic melting laser power; among them, Where f and g are empirical adjustment factors, used to control the influence degrees of temperature and scanning speed on the dynamic melting laser power.

3. The dual-laser collaborative preheating and melting printing system according to claim 1, wherein The system further includes a printing readjustment module, and the printing readjustment module is configured to: Calculate a first temperature influence parameter of the first dynamic preheating laser power at a preset spatial position of the molten pool according to the first dynamic preheating laser power and a preset preheating laser temperature influence formula; Calculate a second temperature influence parameter of the first dynamic melting laser power at a preset spatial position of the molten pool according to the first dynamic melting laser power and a preset melting laser temperature influence formula; Calculate the comprehensive temperature of the molten pool according to the first temperature influence parameter and the second temperature influence parameter; Calculate a second dynamic preheating laser power and a second dynamic melting laser power according to the comprehensive temperature, the first dynamic preheating laser power, and the first dynamic melting laser power; Correspondingly, the power update module is configured to: Adjust the printing process of the printing device according to the adjusted first dynamic preheating laser power and the first dynamic melting laser power. Recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval. Also, recalculate the comprehensive temperature of the molten pool, and update the second dynamic preheating laser power and the second dynamic melting laser power according to the recalculated comprehensive temperature, the first dynamic preheating laser power, and the first dynamic melting laser power. Adjust the printing process of the printing device according to the second dynamic preheating laser power and the second dynamic melting laser power until the printing task is completed.

4. The dual-laser collaborative preheating and melting printing system according to claim 3, characterized in that, The formula for the influence of the preset preheating laser temperature is: Wherein, is the first temperature influence parameter; is the preset preheating laser attenuation factor; (x, y, z) are the three-dimensional coordinates of the preset spatial position; The formula for the influence of the preset melting laser temperature is Wherein, is the second temperature influence parameter; is the preset melting laser attenuation factor.

5. The dual-laser collaborative preheating and melting printing system according to claim 3, wherein, The printing adjustment module is used for: Calculate the deviation temperature according to the comprehensive temperature and the preset target temperature of the molten pool. Calculate the second dynamic preheating laser power according to the deviation temperature, the first dynamic preheating laser power, and the preset dynamic preheating laser power adjustment formula. Calculate the second dynamic melting laser power according to the deviation temperature, the first dynamic melting laser power, and the preset dynamic melting laser power adjustment formula.

6. The dual-laser collaborative preheating and melting printing system according to claim 5, wherein The preset dynamic preheating laser power adjustment formula is: Among them, is the second dynamic preheating laser power; is a function for adjusting the preheating laser power based on the deviation temperature at each position (x, y, z) and each time point (t); wherein, wherein, is a constant that controls the rate of influence of the temperature deviation on the adjustment of the preheating laser power. This functional form enables the adjustment of the power to become more significant as the temperature deviation increases, and the greater the deviation, the faster the power changes; The preset dynamic melting laser power adjustment formula is: Among them, is the second dynamic melting laser power; A function for adjusting the melting laser power based on the deviation temperature at each position (x, y, z) and each time point (t); Among them, Among them, is a constant that controls the rate of influence of the temperature deviation on the adjustment of the melting laser power. As the temperature deviation increases, the adjustment of the power becomes more significant, and the greater the temperature deviation, the more rapid the power change.

7. The dual-laser collaborative preheating and melting printing system according to claim 1, wherein The system further includes a fault detection module, and the fault detection module is used for: Obtain the operating parameters of the printing device in real time, input the operating parameters into a preset fault detection model, and determine whether there is a risk of failure. If there is a risk of failure, output the type of failure through the preset fault detection model and transmit the type of failure to the control center.

8. A dual-laser collaborative preheating and melting printing method, characterized in that, The method includes: If a printing task is received, determine the material temperature, scanning speed, laser angle, and laser spacing according to the printing task. Calculate the initial preheating laser power and the initial melting laser power according to the material temperature, scanning speed, laser angle, laser spacing, the preset initial preheating laser power calculation formula, and the preset initial melting laser power calculation formula. Control the printing device to start printing according to the printing task according to the initial preheating laser power and the initial melting laser power. If the preset update time interval is reached, update the scanning speed and the material temperature. Calculate the first dynamic preheating laser power and the first dynamic melting laser power according to the updated scanning speed, the updated material temperature, the preset first dynamic preheating laser power calculation formula, and the preset first dynamic melting laser power calculation formula. Adjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power. Recalculate the first dynamic preheating laser power and the first dynamic melting laser power after each preset update time interval, and readjust the printing process of the printing device according to the first dynamic preheating laser power and the first dynamic melting laser power until the printing task is completed.

9. An electronic device, characterized in that, It includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor. When the program or instructions are executed by the processor, the steps of the dual-laser collaborative preheating melting printing method as claimed in claim 8 are implemented.

10. A readable storage medium, characterized in that, A program or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, the steps of the dual-laser collaborative preheating melting printing method as claimed in claim 8 are implemented.

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