Ultra-long deep hole high-speed laser cladding method and system based on dynamic light beam regulation and control

Abstract

The invention relates to the field of deep hole high-speed laser cladding processing, in particular to an ultra-long deep hole high-speed laser cladding method and system based on dynamic light beam regulation and control. The cooperative regulation and control module is used for synchronously controlling the laser power, the feeder and the motion platform through an industrial Ethernet; compared with the prior art, the system has the advantages that data information of in-hole cladding machining is collected at any time by additionally arranging and integrating the thermal infrared imager and the high-speed camera, and the operation states of components such as laser power and a powder feeder are synchronously adjusted through the control system containing the industrial Ethernet; the thickness uniformity of a cladding layer is promoted to be improved to 98%, the bonding strength is larger than or equal to 400 MPa, and when the system and the method are adopted for operation, the machining efficiency can be improved by 40% compared with a traditional method, and energy consumption is reduced by 25%.

Description

Technical Field

[0001] The present invention relates to the field of deep hole high-speed laser cladding processing, and specifically refers to an ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control. Background Art

[0002] Traditional laser cladding in deep hole processing is prone to uneven cladding layer thickness and low bonding strength due to problems such as beam energy attenuation and unstable molten pool flow.

[0003] Existing technologies mostly use fixed beam parameters, which are difficult to adapt to the complex geometric features of deep holes and lack real-time control methods;

[0004] To this end, a method and system for high-speed laser cladding of ultra-long deep holes based on dynamic beam control are provided. Summary of the Invention

[0005] (1) Technical problems solved

[0006] The technical problem to be solved by the present invention is that the laser cladding instrument currently used for deep hole processing adopts fixed parameters for light beam output and lacks real-time control function.

[0007] (2) Technical solution

[0008] To solve the above technical problems, the present invention provides a technical solution: an ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control, comprising:

[0009] A multi-sensor collaborative system includes a data acquisition module and a collaborative control module, as well as a control system that performs front-to-back correlation control on the two.

[0010] The data acquisition module includes an integrated infrared thermal imager and a high-speed camera installed on the laser cladding device.

[0011] The coordinated control module includes a laser head, a powder feeder and a motion platform, which are respectively interconnected with the control system.

[0012] Furthermore, the integrated infrared thermal imager obtains monitoring data by monitoring the molten pool temperature.

[0013] Furthermore, the high-speed camera obtains capture data by capturing and photographing the cladding morphology.

[0014] Furthermore, the integrated infrared thermal imager and high-speed camera transmit monitoring data and captured data to the control system through a data feedback mode.

[0015] Furthermore, the control system includes industrial Ethernet, and the output power of the laser head, the powder feeder and the motion platform are all synchronously controlled by the control system via the industrial Ethernet.

[0016] Furthermore, the multi-sensor collaborative system introduces an AI algorithm to predict the dynamic behavior of the molten pool, optimizes the scanning speed of the high-speed camera to 500-1500 mm / s, and optimizes the feeding rate of the powder feeder to 10-50 g / min.

[0017] Furthermore, the multi-sensor collaborative system adjusts the beam scanning path in real time based on the deep hole inner diameter and depth data to perform spiral and reciprocating motion, and makes the spot size between 0.5-3mm and the power density between 1-5kW / mm 2 Adjust between.

[0018] (3) Beneficial effects

[0019] The advantages of the present invention over the prior art are: by adding an integrated infrared thermal imager and a high-speed camera, the system constantly collects data information on the in-hole cladding processing, and through a control system containing industrial Ethernet, synchronously adjusts the operating status of components such as the laser power and the powder feeder, thereby promoting the thickness uniformity of the cladding layer to 98% and the bonding strength to ≥400MPa. In addition, when operating using this system and method, the processing efficiency can be increased by 40% compared with the traditional method, and the energy consumption can be reduced by 25%. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the process of the ultra-long deep hole high-speed laser cladding method based on dynamic beam control and the system operation process of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below with reference to the accompanying drawings.

[0022] In order to solve the above technical problems, the technical solution provided by the present invention is: a method and system for high-speed laser cladding of ultra-long deep holes based on dynamic beam control, combined with the attached Figure 1 , including: a multi-sensor collaborative system, the multi-sensor collaborative system including a data acquisition module and a collaborative control module, and a control system that plays a front-to-back correlation control role for the two;

[0023] The data acquisition module includes an integrated infrared thermal imager and a high-speed camera installed on the laser cladding device. The integrated infrared thermal imager monitors the molten pool temperature to obtain monitoring data. The error of the integrated infrared thermal imager in monitoring the molten pool temperature is within 20 degrees Celsius. The high-speed camera captures and photographs the cladding morphology to obtain captured data. The integrated infrared thermal imager and the high-speed camera both transmit the monitoring data and the captured data to the control system through a data feedback mode.

[0024] The collaborative control module includes a laser head, a powder feeder, and a motion platform, which are respectively interconnected with a control system. The control system includes industrial Ethernet. The output power of the laser head, the powder feeder, and the motion platform are all synchronously controlled by the control system via industrial Ethernet, and the response delay is ≤1ms;

[0025] The multi-sensor collaborative system introduces an AI algorithm to predict the dynamic behavior of the molten pool, optimizes the high-speed camera scanning speed to 500-1500 mm / s, and optimizes the powder feeder feeding rate to 10-50 g / min;

[0026] The multi-sensor collaborative system adjusts the beam scanning path in real time based on the deep hole inner diameter and depth data to perform spiral and reciprocating motion, and keeps the spot size between 0.5-3mm and the power density between 1-5kW / mm 2 Adjust between.

[0027] During the specific implementation of the present invention, during the cladding process of an ultra-long deep hole, the laser head integrates an infrared thermal imager and a high-speed camera to collect information on the cladding position in real time. The infrared thermal imager and the high-speed camera respectively package the monitored molten pool temperature data and the captured cladding morphology information in the hole into data packets and transmit them to the control system. The control system reasonably regulates the power output by the laser head, the feeding speed of the powder feeder, and the motion platform through the industrial Ethernet, so as to ensure that the thickness of the cladding layer in the hole is relatively uniform and the bonding strength is also higher.

[0028] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. Ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control, characterized in that: include: A multi-sensor collaborative system, comprising a data acquisition module and a collaborative control module, as well as a control system that controls the two modules in a forward and backward manner; The data acquisition module includes an integrated infrared thermal imager and a high-speed camera installed on the laser cladding device; The coordinated control module includes a laser head, a powder feeder and a motion platform, which are respectively interconnected with the control system.

2. The ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control according to claim 1 is characterized by: The integrated infrared thermal imager obtains monitoring data by monitoring the temperature of the molten pool.

3. The ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control according to claim 1 is characterized by: The high-speed camera obtains captured data by capturing and photographing the cladding morphology.

4. The ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control according to claim 3 is characterized by: The integrated infrared thermal imager and high-speed camera transmit monitoring data and captured data to the control system through a data feedback mode.

5. The ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control according to claim 1 is characterized by: The control system includes industrial Ethernet, and the output power of the laser head, the powder feeder and the motion platform are all synchronously controlled by the control system via the industrial Ethernet.

6. The ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control according to claim 5, characterized in that: The multi-sensor collaborative system introduces an AI algorithm to predict the dynamic behavior of the molten pool, optimizes the high-speed camera scanning speed to 500-1500 mm / s, and optimizes the powder feeder feeding rate to 10-50 g / min.

7. The ultra-long deep hole high-speed laser cladding method and system based on dynamic beam control according to claim 1, characterized in that: The multi-sensor collaborative system adjusts the beam scanning path in real time based on the deep hole inner diameter and depth data to perform spiral and reciprocating motion, and keeps the spot size between 0.5-3mm and the power density between 1-5kW / mm 2 Adjust between.

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