Numerical simulation method and device for micro-pit morphology of titanium alloy

Abstract

The present application relates to the field of laser technology, disclose a kind of based on laser cauterization's titanium alloy micro-pit topography numerical simulation method and device, comprising: receiving titanium alloy micro-pit topography numerical simulation instruction, according to the numerical simulation instruction selects multiple groups of titanium alloy for simulation, multiple groups of laser points are selected equidistantly on the surface of each group of titanium alloy, select the laser corresponding to each group of titanium alloy, and set the output wavelength of laser, after output power is started laser, multiple laser beams are vertically emitted to each group of laser points, obtain multiple groups of micro-pit points, calculate the laser energy of each micro-pit point, according to the heat flow distribution function of micro-pit point surface according to laser energy, according to heat flow distribution function, heat flow difference is calculated, according to heat flow difference, judge the synthesis quality of titanium alloy, complete the response of numerical simulation instruction.The present application can reduce the error of titanium alloy micro-pit based on observation method measurement to realize titanium alloy quality judgment.

Description

Technical Field

[0001] This invention relates to the field of laser technology, and in particular to a numerical simulation method, apparatus, electronic device, and computer-readable storage medium for the micro-pit morphology of titanium alloys based on laser ablation. Background Technology

[0002] Laser ablation uses a laser beam to melt the surface of a metal, creating grooves known as micropits, which are of significant value in manufacturing. Commonly used metals include copper and aluminum, but with the performance advantages of titanium alloys, titanium alloy-based micropits currently hold greater promise for applications.

[0003] Titanium alloys refer to various alloy metals made from titanium and other metals. Because titanium is an important structural metal, titanium alloys possess advantages such as high strength, good corrosion resistance, and high heat resistance. However, since titanium alloys are composed of titanium and other metals, the quality of the titanium alloy is crucial when using it in industrial production. Poor-quality titanium alloys will inevitably affect the stability of the micropits formed.

[0004] Currently, the main method for determining the quality of titanium alloys is observation. This involves simultaneously generating multiple sets of micropits on the same surface of the titanium alloy and determining whether the sizes of these micropits are the same, thereby determining the quality of the titanium alloy. While observation has practical value, it is still subject to significant errors in determining the quality of titanium alloys due to subjective factors such as the size of the micropits being measured. Summary of the Invention

[0005] This invention provides a numerical simulation method, apparatus, and computer-readable storage medium for the micro-pit morphology of titanium alloys based on laser ablation. Its main purpose is to reduce the error in judging the quality of titanium alloys based on observational measurement of micro-pits.

[0006] To achieve the above objectives, this invention provides a numerical simulation method for the micro-pit morphology of titanium alloys based on laser ablation, comprising:

[0007] Receive numerical simulation instructions for the micro-pit morphology of titanium alloys, and select multiple groups of titanium alloys for simulation according to the numerical simulation instructions;

[0008] Multiple laser points were selected at equal intervals on the surface of each group of titanium alloys;

[0009] Select the laser corresponding to each group of titanium alloys, and set the output wavelength and output power of the laser. Then start the laser and emit multiple laser beams vertically to each group of laser points to obtain multiple groups of micro-pits.

[0010] Calculate the laser energy for each micro-pit, and then calculate the heat flow distribution function on the surface where the micro-pit is located based on the laser energy.

[0011] The heat flux difference is calculated based on the heat flux distribution function, and the synthesis quality of the titanium alloy is determined based on the heat flux difference to complete the response to the numerical simulation command.

[0012] Optionally, selecting multiple groups of titanium alloys for simulation according to the numerical simulation command includes:

[0013] The titanium alloy repository is activated according to the numerical simulation instructions, wherein the titanium alloy repository includes titanium alloys of various regular shapes;

[0014] Titanium alloys with cube, sphere, and cylinder shapes are selected from the titanium alloy repository to obtain cubic titanium alloys, spherical titanium alloys, and cylindrical titanium alloys.

[0015] Optionally, selecting multiple sets of laser points at equal intervals on the surface of each group of titanium alloys includes:

[0016] Determine the rectangular surface containing the length and width of the cubic titanium alloy. Based on the area of ​​the rectangular surface, select multiple sets of laser points at equal intervals. The number of laser points and the area of ​​the laser point surface have the following relationship:

[0017]

[0018] Where n1 represents the number of laser points of cubic titanium alloy, s1 represents the area of ​​the rectangular surface containing the length and width of cubic titanium alloy, and [] represents the rounding operation;

[0019] The radius of the titanium alloy sphere is obtained, and multiple sets of laser points are determined based on the radius. Each laser point is located on the surface of the sphere with the radius as its boundary, and the radius of the sphere and the number of laser points have the following relationship:

[0020] n² = [3R² + 5]

[0021] Where n2 represents the number of laser points in the spherical titanium alloy, and R2 represents the radius of the sphere in the spherical titanium alloy;

[0022] Obtain the circular surface of the cylindrical titanium alloy, and select multiple sets of laser points based on the radius of the circular surface. The radius of the circular surface and the number of laser points have the following relationship:

[0023]

[0024] Where n3 represents the number of laser points on the cylindrical titanium alloy, and R3 represents the radius of the circle on the surface of the sphere.

[0025] Optionally, the calculation of the laser energy for each micro-pit includes:

[0026]

[0027]

[0028] in, This represents the laser energy applied to the i-th micro-pit in the j-th group of titanium alloys. This represents the electrical energy of the laser acting on the i-th micro-pit of the j-th group of titanium alloys. P represents the diameter of the laser beam acting on the i-th micro-pit point of the j-th group of titanium alloys. i j f represents the maximum output power of the laser when the laser beam irradiates the i-th micro-pit of the j-th titanium alloy group. i j denoted by , represents the repetition frequency of the laser beam at the i-th micro-pit in the j-th group of titanium alloys, and μ represents the weighting factor for laser energy calculation.

[0029] Optionally, the step of calculating the heat flow distribution function on the surface where the micro-pits are located based on the laser energy includes:

[0030] Calculate the point radius and laser energy of all micro-pits;

[0031] Determine whether the surface containing the micro-pits is a rectangular surface, a spherical surface, or a circular surface;

[0032] When the surface containing the micro-pits is a rectangular surface, the heat flux distribution function of the rectangular surface is obtained by fitting the point radius values ​​of all micro-pits on the rectangular surface and the laser energy.

[0033] When the surface containing the micro-pits is a spherical surface, the heat flow distribution function of the spherical surface is obtained by fitting the point radius values ​​of all micro-pits on the rectangular surface and the laser energy.

[0034] When the surface containing the micro-pits is a circular surface, the heat flow distribution function of the circular surface is obtained by fitting the point radius values ​​of all micro-pits on the rectangular surface and the laser energy. The heat flow distribution function of the rectangular surface, the heat flow distribution function of the sphere, and the heat flow distribution function of the circular surface are combined to form the heat flow distribution function.

[0035] Optionally, the step of fitting the heat flux distribution function of the rectangular surface based on the point radius values ​​of all micro-pits on the rectangular surface and the laser energy includes:

[0036] Construct a Cartesian coordinate system and project the rectangular surface onto the Cartesian coordinate system;

[0037] The heat flux distribution function of the rectangular surface is calculated using the following formula:

[0038]

[0039] in, This represents the heat flux distribution function at the i-th micro-pit on the rectangular surface. Let d represent the laser energy at the i-th micro-pit in the cubic titanium alloy, n be the total number of micro-pits on the rectangular surface, and d be the laser energy at the i-th micro-pit in the cubic titanium alloy. 1 r is the average diameter of the laser beam acting on all the micro-pits on the rectangular surface. i Let be the radius value of the i-th micro-pit. Let (x, y) represent the distance between the i-th micro-pit point on the rectangular surface and the center of the micro-pit in a Cartesian coordinate system. (x, y) represents the micro-pit coordinates in a Cartesian coordinate system.

[0040] Optionally, the step of fitting the heat flux distribution function of the sphere surface based on the point radius values ​​of all micro-pits on the rectangular surface and the laser energy includes:

[0041] Construct a three-dimensional Cartesian coordinate system and project the surface of the sphere onto the three-dimensional Cartesian coordinate system;

[0042] The heat flux distribution function on the surface of the sphere can be calculated using the following formula:

[0043]

[0044] in, This represents the heat flow distribution function at the i-th micro-pit on the surface of the sphere. Let d represent the laser energy at the i-th micro-pit on the spherical titanium alloy surface, m be the number of micro-pits on the sphere surface, and d be the laser energy at the i-th micro-pit. 2 This represents the average diameter of the laser beam acting on all the micro-pits on the surface of the sphere. Let (x, y, z) represent the distance between the i-th micro-pit point on the surface of the sphere and the center of the micro-pit in a three-dimensional Cartesian coordinate system. The distance is not greater than the radius of the point. (x, y, z) represents the coordinates of the micro-pit in the three-dimensional Cartesian coordinate system.

[0045] Optionally, the step of fitting the heat flux distribution function of the circular surface based on the point radius values ​​of all micro-pits on the rectangular surface and the laser energy includes:

[0046] The heat flux distribution function of a circular surface can be calculated using the following formula:

[0047]

[0048] in, This represents the heat flow distribution function at the i-th micro-pit on a circular surface. Let d represent the laser energy at the i-th micro-pit on the spherical titanium alloy, t be the total number of micro-pits on the circular surface, and d be the laser energy at the i-th micro-pit. 3 This represents the average diameter of the laser beam acting on all the micro-pits on the circular surface. This represents the distance between the coordinates of the i-th micro-pit on a circular surface and the center of the micro-pit in a Cartesian coordinate system, where the distance is not greater than the radius of the point.

[0049] Optionally, calculating the heat flux difference based on the heat flux distribution function includes:

[0050] The heat flux distribution functions of rectangular, spherical, and circular surfaces are visualized, and the heat flux distribution curves of rectangular, spherical, and circular surfaces are obtained.

[0051] The gradient value of each distribution curve is calculated using the gradient descent algorithm, resulting in rectangular gradient values, spherical gradient values, and circular gradient values. These three gradient values ​​are referred to as the heat flux difference.

[0052] To address the aforementioned problems, the present invention also provides a numerical simulation device for the micro-pit morphology of titanium alloys based on laser ablation, the device comprising:

[0053] The simulation command receiving module is used to receive numerical simulation commands for the micro-pit morphology of titanium alloys and select multiple groups of titanium alloys for simulation according to the numerical simulation commands.

[0054] The laser spot selection module is used to select multiple sets of laser spots at equal intervals on the surface of each group of titanium alloys.

[0055] The micro-pit generation module is used to select the laser corresponding to each group of titanium alloys, and after setting the output wavelength and output power of the laser, the laser is started to emit multiple laser beams vertically to each group of laser points to obtain multiple groups of micro-pits.

[0056] The heat flux distribution function calculation module is used to calculate the laser energy of each micro-pit and calculate the heat flux distribution function of the surface where the micro-pit is located based on the laser energy.

[0057] The synthesis quality judgment module is used to calculate the heat flow difference based on the heat flow distribution function, judge the synthesis quality of the titanium alloy based on the heat flow difference, and complete the response to numerical simulation commands.

[0058] To address the above problems, the present invention also provides an electronic device, the electronic device comprising:

[0059] Memory, storing at least one instruction; and

[0060] The processor executes the instructions stored in the memory to implement the numerical simulation method for the micro-pit morphology of titanium alloy based on laser ablation described above.

[0061] To address the aforementioned problems, the present invention also provides a computer-readable storage medium storing at least one instruction, which is executed by a processor in an electronic device to implement the numerical simulation method for the micro-pit morphology of titanium alloy based on laser ablation described above.

[0062] To address the problems described in the background art, this invention first receives a numerical simulation command for the micro-pit morphology of a titanium alloy. Based on this command, multiple groups of titanium alloys are selected for simulation. Multiple laser points are equidistantly selected on the surface of each group of titanium alloys. A laser corresponding to each group of titanium alloys is selected, and the laser's output wavelength and power are set. The laser is then activated to emit multiple laser beams perpendicularly to each group of laser points, resulting in multiple groups of micro-pits. Compared to observational methods that examine the physical differences of each group of micro-pits, such as their radius and depth, this invention calculates the laser energy for each micro-pit. Based on the laser energy, a heat flow distribution function is calculated on the surface of the micro-pit. Since the heat flow distribution function reflects the heat distribution on the surface of the micro-pit, excessively uneven heat distribution is highly likely due to non-standard titanium alloy synthesis processes, leading to uneven internal material distribution after synthesis. Therefore, the heat flow difference is calculated based on the heat flow distribution function, and the synthesis quality of the titanium alloy is judged based on the heat flow difference, thus completing the response to the numerical simulation command. Therefore, the numerical simulation method, device, electronic device and computer-readable storage medium for the micro-pit morphology of titanium alloy based on laser ablation proposed in this invention are mainly aimed at reducing the error in judging the quality of titanium alloy based on observation method to measure the micro-pits of titanium alloy. Attached Figure Description

[0063] Figure 1 This is a flowchart illustrating a numerical simulation method for the micro-pit morphology of titanium alloy based on laser ablation, provided in an embodiment of the present invention.

[0064] Figure 2 A functional block diagram of a numerical simulation device for the micro-pit morphology of titanium alloy based on laser ablation, provided in an embodiment of the present invention.

[0065] Figure 3 This is a schematic diagram of an electronic device that implements the numerical simulation method for the micro-pit morphology of titanium alloy based on laser ablation, according to an embodiment of the present invention.

[0066] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0067] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0068] This application provides a numerical simulation method for the micro-pit morphology of titanium alloys based on laser ablation. The execution entity of this numerical simulation method includes, but is not limited to, at least one electronic device that can be configured to execute the method provided in this application, such as a server or a terminal. In other words, the numerical simulation method for the micro-pit morphology of titanium alloys based on laser ablation can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0069] Reference Figure 1 The diagram shown is a flowchart illustrating a numerical simulation method for the micro-pit morphology of titanium alloys based on laser ablation, according to an embodiment of the present invention. In this embodiment, the numerical simulation method for the micro-pit morphology of titanium alloys based on laser ablation includes:

[0070] S1. Receive numerical simulation instructions for the micro-pit morphology of titanium alloys, and select multiple groups of titanium alloys for simulation according to the numerical simulation instructions.

[0071] Understandably, since titanium alloys are alloys made from various titanium and other metals, poorly synthesized titanium alloys exhibit poor stability at high temperatures. Therefore, testing the micro-pit morphology formed on titanium alloys under laser beam ablation and exploring whether there is a logical relationship between laser beam energy and micro-pit morphology is crucial for determining the quality of titanium alloys. In this embodiment of the invention, the numerical simulation command is generally initiated by titanium alloy quality testing personnel, and to reduce the error in judging the quality of titanium alloys, multiple groups of titanium alloys need to be selected simultaneously.

[0072] Specifically, the step of selecting multiple groups of titanium alloys for simulation according to the numerical simulation command includes:

[0073] The titanium alloy repository is activated according to the numerical simulation instructions, wherein the titanium alloy repository includes titanium alloys of various regular shapes;

[0074] Titanium alloys with cube, sphere, and cylinder shapes are selected from the titanium alloy repository to obtain cubic titanium alloys, spherical titanium alloys, and cylindrical titanium alloys.

[0075] It is understood that the embodiments of the present invention include at least three groups of titanium alloys, wherein the first group of titanium alloys is cubic in shape, the second group of titanium alloys is spherical in shape, and the third group of titanium alloys is cylindrical in shape. By calculating the relationship between the micro-pit morphology formed by laser beam burning of titanium alloys of different shapes and the laser beam, the accuracy of judging the quality of titanium alloys can be improved.

[0076] S2. Select multiple sets of laser points at equal intervals on the surface of each group of titanium alloys.

[0077] In order to reduce the error in judging the quality of titanium alloys, multiple sets of laser points are selected on the surface of each group of titanium alloys in this embodiment of the invention.

[0078] Specifically, the step of selecting multiple sets of laser points at equal intervals on the surface of each group of titanium alloys includes:

[0079] Determine the rectangular surface containing the length and width of the cubic titanium alloy. Based on the area of ​​the rectangular surface, select multiple sets of laser points at equal intervals. The number of laser points and the area of ​​the laser point surface have the following relationship:

[0080]

[0081] Where n1 represents the number of laser points of cubic titanium alloy, s1 represents the area of ​​the rectangular surface containing the length and width of cubic titanium alloy, and [] represents the rounding operation;

[0082] The radius of the titanium alloy sphere is obtained, and multiple sets of laser points are determined based on the radius. Each laser point is located on the surface of the sphere with the radius as its boundary, and the radius of the sphere and the number of laser points have the following relationship:

[0083] n² = [3R² + 5]

[0084] Where n2 represents the number of laser points in the spherical titanium alloy, and R2 represents the radius of the sphere in the spherical titanium alloy;

[0085] Obtain the circular surface of the cylindrical titanium alloy, and select multiple sets of laser points based on the radius of the circular surface. The radius of the circular surface and the number of laser points have the following relationship:

[0086]

[0087] Where n3 represents the number of laser points on the cylindrical titanium alloy, and R3 represents the radius of the circle on the surface of the sphere.

[0088] It should be explained that the multiple laser points of each group of titanium alloys are generally set with a minimum distance, that is, the distance between laser points must be greater than or equal to the minimum distance. The minimum distance set in the embodiment of the present invention is [1cm, 2cm].

[0089] S3. Select the laser corresponding to each group of titanium alloys, and set the output wavelength and output power of the laser. Then start the laser and emit multiple laser beams vertically to each group of laser points to obtain multiple groups of micro-pits.

[0090] Understandably, when the output wavelength and output power of the laser are set, the laser is sequentially aimed at each laser point and multiple laser beams are emitted vertically. When the high-power laser beam acts on the laser point of the titanium alloy, the surface of the laser point absorbs a large amount of laser energy, causing the titanium alloy material to vaporize, coke, spray and burn, resulting in the formation of a cavity in the laser point of the titanium alloy. In this embodiment of the invention, such a cavity is referred to as a micro-pit.

[0091] S4. Calculate the laser energy for each micro-pit, and calculate the heat flow distribution function on the surface where the micro-pit is located based on the laser energy.

[0092] Understandably, each micro-pit is formed by laser beam irradiation; therefore, it is necessary to calculate the laser energy irradiating each micro-pit. Specifically, the calculation of the laser energy for each micro-pit includes:

[0093]

[0094]

[0095] in, This represents the laser energy applied to the i-th micro-pit in the j-th group of titanium alloys. This represents the electrical energy of the laser acting on the i-th micro-pit of the j-th group of titanium alloys. P represents the diameter of the laser beam acting on the i-th micro-pit point of the j-th group of titanium alloys. i j f represents the maximum output power of the laser when the laser beam irradiates the i-th micro-pit of the j-th titanium alloy group. i j denoted by , represents the repetition frequency of the laser beam at the i-th micro-pit in the j-th group of titanium alloys, and μ represents the weighting factor for laser energy calculation.

[0096] It should be explained that the repetition frequency is one of the important characteristic parameters of a pulse generator, which represents the rate at which the pulse generator emits pulses, that is, the number of pulses emitted per second, and the unit is Hertz (Hz).

[0097] Specifically, the calculation of the heat flow distribution function on the surface where the micro-pits are located based on the laser energy includes:

[0098] Calculate the point radius and laser energy of all micro-pits;

[0099] Determine whether the surface containing the micro-pits is a rectangular surface, a spherical surface, or a circular surface;

[0100] When the surface containing the micro-pits is a rectangular surface, the heat flux distribution function of the rectangular surface is obtained by fitting the point radius values ​​of all micro-pits on the rectangular surface and the laser energy.

[0101] When the surface containing the micro-pits is a spherical surface, the heat flow distribution function of the spherical surface is obtained by fitting the point radius values ​​of all micro-pits on the rectangular surface and the laser energy.

[0102] When the surface containing the micro-pits is a circular surface, the heat flow distribution function of the circular surface is obtained by fitting the point radius values ​​of all micro-pits on the rectangular surface and the laser energy. The heat flow distribution function of the rectangular surface, the heat flow distribution function of the sphere, and the heat flow distribution function of the circular surface are combined to form the heat flow distribution function.

[0103] Further, the step of fitting the heat flux distribution function of the rectangular surface based on the point radius values ​​of all micro-pits on the rectangular surface and the laser energy includes:

[0104] Construct a Cartesian coordinate system and project the rectangular surface onto the Cartesian coordinate system;

[0105] The heat flux distribution function of the rectangular surface is calculated using the following formula:

[0106]

[0107] in, This represents the heat flux distribution function at the i-th micro-pit on the rectangular surface. Let d represent the laser energy at the i-th micro-pit in the cubic titanium alloy, n be the total number of micro-pits on the rectangular surface, and d be the laser energy at the i-th micro-pit in the cubic titanium alloy. 1 r is the average diameter of the laser beam acting on all the micro-pits on the rectangular surface. i Let be the radius value of the i-th micro-pit. Let (x, y) represent the distance between the i-th micro-pit point on the rectangular surface and the center of the micro-pit in a Cartesian coordinate system. (x, y) represents the micro-pit coordinates in a Cartesian coordinate system.

[0108] For example, there are 10 micro-pits in a rectangular surface. The radius of one of the micro-pits is 2cm, which means that the micro-pit is recessed 2cm downward with respect to the rectangular surface as the horizontal standard. Therefore, it can be understood that the distance between the coordinates of each micro-pit in the recessed area and the center of the micro-pit can be calculated, and then the relationship function between the distance value and the laser energy can be constructed. This relationship function is called the heat flow distribution function of the i-th micro-pit.

[0109] Specifically, the step of fitting the heat flux distribution function of the sphere surface based on the point radius values ​​of all micro-pits on the rectangular surface and the laser energy includes:

[0110] Construct a three-dimensional Cartesian coordinate system and project the surface of the sphere onto the three-dimensional Cartesian coordinate system;

[0111] The heat flux distribution function on the surface of the sphere can be calculated using the following formula:

[0112]

[0113] in, This represents the heat flow distribution function at the i-th micro-pit on the surface of the sphere. Let d represent the laser energy at the i-th micro-pit on the spherical titanium alloy surface, m be the number of micro-pits on the sphere surface, and d be the laser energy at the i-th micro-pit. 2 This represents the average diameter of the laser beam acting on all the micro-pits on the surface of the sphere. Let (x, y, z) represent the distance between the i-th micro-pit point on the surface of the sphere and the center of the micro-pit in a three-dimensional Cartesian coordinate system. The distance is not greater than the radius of the point. (x, y, z) represents the coordinates of the micro-pit in the three-dimensional Cartesian coordinate system.

[0114] Specifically, the step of fitting the heat flux distribution function of the circular surface based on the point radius values ​​of all micro-pits on the rectangular surface and the laser energy includes:

[0115] The heat flux distribution function of a circular surface can be calculated using the following formula:

[0116]

[0117] in, This represents the heat flow distribution function at the i-th micro-pit on a circular surface. Let d represent the laser energy at the i-th micro-pit on the spherical titanium alloy, t be the total number of micro-pits on the circular surface, and d be the laser energy at the i-th micro-pit. 3 This represents the average diameter of the laser beam acting on all the micro-pits on the circular surface. This represents the distance between the coordinates of the i-th micro-pit on a circular surface and the center of the micro-pit in a Cartesian coordinate system, where the distance is not greater than the radius of the point.

[0118] S5. Calculate the heat flow difference based on the heat flow distribution function, determine the quality of the titanium alloy synthesis based on the heat flow difference, and complete the response to the numerical simulation command.

[0119] Specifically, the calculation of the heat flux difference based on the heat flux distribution function includes:

[0120] The heat flux distribution functions of rectangular, spherical, and circular surfaces are visualized, and the heat flux distribution curves of rectangular, spherical, and circular surfaces are obtained.

[0121] The gradient value of each distribution curve is calculated using the gradient descent algorithm, resulting in rectangular gradient values, spherical gradient values, and circular gradient values. These three gradient values ​​are referred to as the heat flux difference.

[0122] It should be explained that the gradient essentially represents the rate at which the directional derivative of a function reaches its maximum value along that direction at a given point; that is, how quickly the function changes along that direction (the gradient direction) at that point. This invention applies the concept of gradient to the heat flux distribution function, calculating the gradient values ​​of three sets of heat flux distribution functions. The magnitude of the gradient values ​​determines whether the heat flux change in each titanium alloy is too large. When the heat flux change is too large, it indicates that the internal structure of the titanium alloy is unstable, thus preventing the formation of a linear heat flux change, resulting in poor quality of the corresponding titanium alloy.

[0123] To address the problems described in the background art, this invention first receives a numerical simulation command for the micro-pit morphology of a titanium alloy. Based on this command, multiple groups of titanium alloys are selected for simulation. Multiple laser points are equidistantly selected on the surface of each group of titanium alloys. A laser corresponding to each group of titanium alloys is selected, and the laser's output wavelength and power are set. The laser is then activated to emit multiple laser beams perpendicularly to each group of laser points, resulting in multiple groups of micro-pits. Compared to observational methods that examine the physical differences of each group of micro-pits, such as their radius and depth, this invention calculates the laser energy for each micro-pit. Based on the laser energy, a heat flow distribution function is calculated on the surface of the micro-pit. Since the heat flow distribution function reflects the heat distribution on the surface of the micro-pit, excessively uneven heat distribution is highly likely due to non-standard titanium alloy synthesis processes, leading to uneven internal material distribution after synthesis. Therefore, the heat flow difference is calculated based on the heat flow distribution function, and the synthesis quality of the titanium alloy is judged based on the heat flow difference, thus completing the response to the numerical simulation command. Therefore, the numerical simulation method, device, electronic device and computer-readable storage medium for the micro-pit morphology of titanium alloy based on laser ablation proposed in this invention are mainly aimed at reducing the error in judging the quality of titanium alloy based on observation method to measure the micro-pits of titanium alloy.

[0124] like Figure 2 The diagram shown is a functional block diagram of a numerical simulation device for the micro-pit morphology of titanium alloy based on laser ablation, provided in an embodiment of the present invention.

[0125] The numerical simulation device 100 for the micro-pit morphology of titanium alloys based on laser ablation described in this invention can be installed in an electronic device. Depending on the functions implemented, the numerical simulation device 100 may include a simulation command receiving module 101, a laser point selection module 102, a micro-pit point generation module 103, a heat flux distribution function calculation module 104, and a synthesis quality judgment module 105. The module described in this invention can also be called a unit, referring to a series of computer program segments that can be executed by the processor of an electronic device and perform a fixed function, stored in the memory of the electronic device.

[0126] The simulation instruction receiving module 101 is used to receive numerical simulation instructions for the micro-pit morphology of titanium alloys, and select multiple groups of titanium alloys for simulation according to the numerical simulation instructions.

[0127] The laser point selection module 102 is used to select multiple sets of laser points at equal intervals on the surface of each group of titanium alloys.

[0128] The micro-pit generation module 103 is used to select a laser corresponding to each group of titanium alloys, and after setting the output wavelength and output power of the laser, start the laser to emit multiple laser beams vertically to each group of laser points to obtain multiple groups of micro-pits.

[0129] The heat flow distribution function calculation module 104 is used to calculate the laser energy of each micro-pit point and calculate the heat flow distribution function of the surface where the micro-pit point is located based on the laser energy.

[0130] The synthesis quality judgment module 105 is used to calculate the heat flow difference based on the heat flow distribution function, judge the synthesis quality of the titanium alloy based on the heat flow difference, and complete the response to the numerical simulation command.

[0131] In detail, the modules in the numerical simulation device 100 for the micro-pit morphology of titanium alloy based on laser ablation described in this embodiment of the invention employ the same methods as described above. Figure 1 The blockchain-based product supply chain management method described herein uses the same technical means and can produce the same technical effects, so it will not be elaborated here.

[0132] like Figure 3 The diagram shown is a structural schematic of an electronic device that implements a numerical simulation method for the micro-pit morphology of titanium alloy based on laser ablation, according to an embodiment of the present invention.

[0133] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a numerical simulation method program for the micro-pit morphology of titanium alloy based on laser ablation.

[0134] The memory 11 includes at least one type of readable storage medium, such as flash memory, portable hard drive, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as a portable hard drive. In other embodiments, the memory 11 can be an external storage device of the electronic device 1, such as a plug-in portable hard drive, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the electronic device 1. Furthermore, the memory 11 can include both internal and external storage units of the electronic device 1. The memory 11 can be used not only to store application software and various types of data installed on the electronic device 1, such as the code of a numerical simulation method program based on the micro-pit morphology of titanium alloy based on laser ablation, but also to temporarily store data that has been output or will be output.

[0135] In some embodiments, the processor 10 may be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor 10 is the control unit of the electronic device, connecting various components of the entire electronic device through various interfaces and lines. It executes programs or modules stored in the memory 11 (e.g., a numerical simulation method program based on the micro-pit morphology of titanium alloys based on laser ablation) and calls data stored in the memory 11 to perform various functions of the electronic device 1 and process data.

[0136] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0137] Figure 3 Only electronic devices with components are shown; it will be understood by those skilled in the art that... Figure 3The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0138] For example, although not shown, the electronic device 1 may also include a power supply (such as a battery) to power various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, thereby enabling functions such as charging management, discharging management, and power consumption management. The power supply may also include one or more DC or AC power supplies, recharging devices, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be described in detail here.

[0139] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a Wi-Fi interface, a Bluetooth interface, etc.), which is typically used to establish communication connections between the electronic device 1 and other electronic devices.

[0140] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), or a standard wired or wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. The display may also be appropriately referred to as a screen or display unit, used to display information processed in the electronic device 1 and to display a visual user interface.

[0141] It should be understood that the embodiments described are for illustrative purposes only and are not limited to this structure in the scope of the patent application.

[0142] The numerical simulation method program for the micro-pit morphology of titanium alloy based on laser ablation, stored in the memory 11 of the electronic device 1, is a combination of multiple instructions. When run in the processor 10, it can achieve the following:

[0143] Receive numerical simulation instructions for the micro-pit morphology of titanium alloys, and select multiple groups of titanium alloys for simulation according to the numerical simulation instructions;

[0144] Multiple laser points were selected at equal intervals on the surface of each group of titanium alloys;

[0145] Select the laser corresponding to each group of titanium alloys, and set the output wavelength and output power of the laser. Then start the laser and emit multiple laser beams vertically to each group of laser points to obtain multiple groups of micro-pits.

[0146] Calculate the laser energy for each micro-pit, and then calculate the heat flow distribution function on the surface where the micro-pit is located based on the laser energy.

[0147] The heat flux difference is calculated based on the heat flux distribution function, and the synthesis quality of the titanium alloy is determined based on the heat flux difference to complete the response to the numerical simulation command.

[0148] Specifically, the processor 10's implementation method for the above instructions can be found in [reference needed]. Figures 1 to 3 The descriptions of the relevant steps in the corresponding embodiments are not repeated here.

[0149] Furthermore, if the modules / units integrated in the electronic device 1 are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0150] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor of an electronic device, can perform the following:

[0151] Receive numerical simulation instructions for the micro-pit morphology of titanium alloys, and select multiple groups of titanium alloys for simulation according to the numerical simulation instructions;

[0152] Multiple laser points were selected at equal intervals on the surface of each group of titanium alloys;

[0153] Select the laser corresponding to each group of titanium alloys, and set the output wavelength and output power of the laser. Then start the laser and emit multiple laser beams vertically to each group of laser points to obtain multiple groups of micro-pits.

[0154] Calculate the laser energy for each micro-pit, and then calculate the heat flow distribution function on the surface where the micro-pit is located based on the laser energy.

[0155] The heat flux difference is calculated based on the heat flux distribution function, and the synthesis quality of the titanium alloy is determined based on the heat flux difference to complete the response to the numerical simulation command.

[0156] In the several embodiments provided by this invention, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and other division methods may be used in actual implementation.

[0157] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0158] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional modules.

[0159] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0160] Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within the invention. No appended diagram markings in the claims should be construed as limiting the scope of the claims.

[0161] The blockchain referred to in this invention is a novel application model of computer technologies such as distributed data storage, peer-to-peer transmission, consensus mechanisms, and encryption algorithms. Essentially, a blockchain is a decentralized database, a chain of data blocks linked together using cryptographic methods. Each data block contains information about a batch of network transactions, used to verify the validity of the information (anti-counterfeiting) and generate the next block. A blockchain can include an underlying blockchain platform, a platform product service layer, and an application service layer.

[0162] Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices recited in a system claim may also be implemented by a single unit or device through software or hardware. The term "second class" is used to indicate names and does not indicate any specific order.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A numerical simulation method for laser ablation based titanium alloy micro-pit morphology, characterized in that, The method comprises: Receiving numerical simulation instructions of titanium alloy micro-pit morphology, selecting multiple groups of titanium alloys for simulation according to the numerical simulation instructions; Selecting multiple groups of laser points on the surface of each group of titanium alloys at equal intervals; Selecting a laser corresponding to each group of titanium alloys, setting the output wavelength and output power of the laser, and then starting the laser to emit multiple laser beams vertically to each group of laser points to obtain multiple groups of micro-pit points; Calculating the laser energy of each micro-pit point, and calculating the heat flow distribution function of the surface where the micro-pit point is located according to the laser energy; According to the heat flow difference, the synthesis quality of the titanium alloy is judged, and the response of the numerical simulation instruction is completed; The calculation of the laser energy of each micro-pit point comprises: ； ； in, Indicates the action on the first Group 1 titanium alloy Laser energy at a micro-pit, Indicates the action on the first Group 1 titanium alloy The electrical energy of a laser with a micro-pit. Indicates the action on the first Group 1 titanium alloy The diameter of the laser beam from each micro-pit. Indicates the first Group 1 titanium alloy The maximum output power of the laser when irradiated by a laser beam illuminating a micro-pitted area. Indicates the first Group 1 titanium alloy The repetition frequency of the laser beam at each micro-pit. This represents the weighting factor used in laser energy calculation; The rectangular surface heat flow distribution function is fitted according to the point radius value and the laser energy of all micro-pit points on the rectangular surface, which comprises: A rectangular coordinate system is constructed, and the rectangular surface is projected onto the rectangular coordinate system; The rectangular surface heat flow distribution function is calculated according to the following formula: ； wherein, represents the heat flux distribution function of the jth micro-pit point of the rectangular surface, represents the laser energy of the jth micro-pit point of the cubic titanium alloy, is the number of all micro-pit points of the rectangular surface, is the average diameter of the laser beam acting on all micro-pit points of the rectangular surface, is the point radius value of the jth micro-pit point, represents the distance value between the micro-pit coordinate and the micro-pit center in the rectangular coordinate system of the plane, represents the micro-pit coordinate in the rectangular coordinate system of the plane.​​​​ 2. The numerical simulation method of laser ablation based titanium alloy micro-pit topography according to claim 1, wherein, The multiple groups of titanium alloys selected for simulation according to the numerical simulation instructions comprise: Starting a titanium alloy storage according to the numerical simulation instructions, wherein the titanium alloy storage comprises multiple titanium alloys of regular shapes; Selecting titanium alloys of cubic, spherical and cylindrical shapes from the titanium alloy storage to obtain cubic titanium alloys, spherical titanium alloys and cylindrical titanium alloys.

3. The numerical simulation method of laser ablation based titanium alloy micro-pit topography of claim 2, wherein, The multiple groups of laser points selected on the surface of each group of titanium alloys at equal intervals comprise: Determine the rectangular surface of the length and width of the cubic titanium alloy, and select multiple groups of laser points at equal intervals according to the area of the rectangular surface, wherein the number of laser points and the area of the laser point surface have the following relationship: ； wherein, represents the number of laser points of cubic titanium alloy, represents the area of the rectangular surface on which the length and width of cubic titanium alloy are located, represents the rounding operation; Obtain the spherical radius of the spherical titanium alloy, and determine multiple groups of laser points according to the spherical radius, wherein each laser point is located on the spherical surface with the spherical radius as the circle, and the spherical radius and the number of laser points have the following relationship: ； wherein, represents the number of laser spots of the spherical titanium alloy, represents the radius of the sphere of the spherical titanium alloy; Obtain the circular surface of the cylindrical titanium alloy, and select multiple groups of laser points according to the circular radius of the circular surface, wherein the circular radius and the number of laser points have the following relationship: ； wherein, represents the number of laser points of the cylindrical titanium alloy, represents the radius of the circle of the spherical surface.

4. The numerical simulation method of laser ablation based titanium alloy micro-pit topography of claim 1, wherein, The calculation of the heat flow distribution function of the surface where the micro-pit point is located according to the laser energy comprises: Statistical point radius value and laser energy of all micro-pit points; Determine whether the surface where the micro-pit point is located is a rectangular surface, a spherical surface or a circular surface; When the surface where the micro-pit point is located is a rectangular surface, the rectangular surface heat flow distribution function is fitted according to the point radius value and the laser energy of all micro-pit points on the rectangular surface; When the surface where the micro-pit point is located is a spherical surface, the spherical surface heat flow distribution function is fitted according to the point radius value and the laser energy of all micro-pit points on the rectangular surface; When the surface where the micro-pit point is located is a circular surface, the circular surface heat flow distribution function is fitted according to the point radius value and the laser energy of all micro-pit points on the rectangular surface, wherein the rectangular surface heat flow distribution function, the spherical surface heat flow distribution function and the circular surface heat flow distribution function constitute the heat flow distribution function.

5. The numerical simulation method of laser ablation based titanium alloy micro-pit topography of claim 1, wherein, The fitting of the spherical surface heat flow distribution function according to the point radius value and the laser energy of all micro-pit points on the rectangular surface comprises: A three-dimensional rectangular coordinate system is constructed, and the spherical surface is projected onto the three-dimensional rectangular coordinate system; The spherical surface heat flow distribution function is calculated according to the following formula: ； in, The first surface of the sphere The heat flow distribution function of a micro-pit point The first part of the spherical titanium alloy Laser energy at a micro-pit, The number of all micro-pits on the surface of the sphere. This represents the average diameter of the laser beam acting on all the micro-pits on the surface of the sphere. In a three-dimensional rectangular coordinate system, the first position of the surface of the sphere is represented by the first position of the second position. The distance between the coordinates of each micro-pit within a given micro-pit point and the center of that micro-pit is not greater than the point's radius. This represents the coordinates of the micro-pit in a three-dimensional rectangular coordinate system.

6. The numerical simulation method of laser ablation based titanium alloy micro-pit topography according to claim 5, wherein, The circular surface heat flow distribution function is fitted according to the point radius values and laser energy of all dimple points on the rectangular surface, and the circular surface heat flow distribution function comprises: The circular surface heat flow distribution function is calculated according to the following formula: ； in, The first one represents the circular surface. The heat flow distribution function of a micro-pit point The first part of the spherical titanium alloy Laser energy at a micro-pit, Let be the number of all micro-pits on the circular surface. This represents the average diameter of the laser beam acting on all the micro-pits on the circular surface. In a Cartesian coordinate system, the first position of a circular surface is represented by the second position. The distance between the coordinates of a micro-pit within a micro-pit and the center of the micro-pit is not greater than the radius of the point.

7. The numerical simulation method of laser ablation based titanium alloy micro-pit topography according to claim 6, wherein, The heat flow difference is calculated according to the heat flow distribution function, and the heat flow difference comprises: The rectangular surface heat flow distribution function, the spherical surface heat flow distribution function and the circular surface heat flow distribution function are visualized to obtain the rectangular surface heat flow distribution curve, the spherical surface heat flow distribution curve and the circular surface heat flow distribution curve. The gradient values of each distribution curve are calculated according to the gradient descent algorithm to obtain the rectangular gradient value, the spherical gradient value and the circular gradient value, wherein the rectangular gradient value, the spherical gradient value and the circular gradient value are referred to as the heat flow difference.

8. A device for numerical simulation of micro-pit morphology of titanium alloy based on laser ablation, characterized in that, The device comprises: The simulation instruction receiving module is configured to receive a numerical simulation instruction of a titanium alloy dimple morphology, and select a plurality of groups of titanium alloys for simulation according to the numerical simulation instruction; The laser point selection module is configured to select a plurality of groups of laser points equidistantly on the surface of each group of titanium alloys; The dimple point generation module is configured to select a laser corresponding to each group of titanium alloys, set the output wavelength and output power of the laser, and then start the laser to emit a plurality of laser beams vertically to each group of laser points to obtain a plurality of groups of dimple points; The heat flow distribution function calculation module is configured to calculate the laser energy of each dimple point, and calculate the heat flow distribution function of the surface on which the dimple point is located according to the laser energy; The calculation of the laser energy of each dimple point comprises: ； ； in, Indicates the action on the first Group 1 titanium alloy Laser energy at a micro-pit, Indicates the action on the first Group 1 titanium alloy The electrical energy of a laser with a micro-pit. Indicates the action on the first Group 1 titanium alloy The diameter of the laser beam from each micro-pit. Indicates the first Group 1 titanium alloy The maximum output power of the laser when irradiated by a laser beam illuminating a micro-pitted area. Indicates the first Group 1 titanium alloy The repetition frequency of the laser beam at each micro-pit. This represents the weighting factor used in laser energy calculation; The heat flow distribution function comprises: A plane rectangular coordinate system is constructed, and the rectangular surface is projected onto the plane rectangular coordinate system; The rectangular surface heat flow distribution function is calculated according to the following formula: ； wherein, represents the heat flux distribution function of the jth micro-pit point of the rectangular surface, represents the laser energy of the jth micro-pit point of the cubic titanium alloy, is the number of all micro-pit points of the rectangular surface, is the average diameter of the laser beam acting on all micro-pit points of the rectangular surface, is the point radius value of the jth micro-pit point, represents the distance value between the micro-pit coordinate and the micro-pit center in the rectangular coordinate system of the plane, represents the micro-pit coordinate in the rectangular coordinate system of the plane;​​​​ The synthesis quality judgment module is configured to calculate a heat flow difference according to the heat flow distribution function, judge the synthesis quality of the titanium alloy according to the heat flow difference, and complete the response of the numerical simulation instruction.

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