Dual laser linkage control method for laser forging processing and laser forging processing device

Abstract

The application provides a double laser linkage control method and a laser fusion forging processing device, and the method comprises the following steps: a laser cladding assembly moves along a preset moving direction, and generates a cladding laser to act on a cladding material to form a molten pool, and the molten pool forms a cladding layer after condensation; a laser forging assembly moves along the preset moving direction, and generates a forging laser to act on an isotherm belt of a specific temperature behind the molten pool, a plurality of forging spots are formed along the length direction of the isotherm belt, and the projections of the plurality of forging spots on the isotherm belt in the direction perpendicular to the preset moving direction are equidistant. Through the double laser linkage control method and the laser fusion forging processing device, the laser fusion forging process is optimized, and the residual stress control precision, the repair efficiency and the adaptability are improved.

Description

Technical Field

[0001] This invention relates to the field of laser shock peening technology, and more specifically, to a dual-laser linkage control method and a laser forging processing apparatus for laser melting and forging. Background Technology

[0002] Laser cladding can prepare high-performance alloy layers on the surface of metal components, making it an advanced remanufacturing and repair method. However, due to the residual tensile stress in the deposited layer, it is difficult to further improve fatigue life. Laser shock blasting utilizes the mechanical effect of high-energy-density pulsed lasers to induce plastic deformation in the metal surface, transforming residual tensile stress into compressive stress. However, it does not achieve additive manufacturing, and therefore cannot be used alone in the repair of damaged parts. Laser forging technology effectively combines the advantages of laser cladding and laser shock blasting, and has attracted attention from the academic and engineering communities both domestically and internationally in recent years.

[0003] However, for the in-situ repair of non-removable / difficult-to-remove components of equipment, due to limitations imposed by factors such as the level of laser melting and forging equipment and on-site operating conditions, in-situ laser melting and forging repair has not yet been achieved domestically or internationally. High-performance in-situ laser melting and forging repair of critical components in major equipment in the national economy and defense sectors still requires overcoming numerous scientific and technological challenges. Therefore, researching in-situ laser melting and forging repair technology and mobile laser melting and forging equipment, and demonstrating its application in aerospace and energy sectors, will help improve the operational safety assurance capabilities of major equipment in my country, promote the development and widespread application of laser melting and forging technology, and has significant social benefits and major engineering application value. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by the present invention is that existing laser melting and forging equipment is difficult to achieve in-situ repair and mobile repair of components, and has poor control over residual stress, coarse structure, porosity and cracks.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] In a first aspect, the present invention provides a dual-laser linkage control method for laser melting and forging processing, comprising:

[0009] The laser cladding assembly moves along a preset direction and generates a cladding laser that acts on the cladding material to form a molten pool. After the molten pool solidifies, a cladding layer is formed.

[0010] The laser forging assembly moves along the preset moving direction and generates a forging laser that acts on an isothermal band at a specific temperature behind the molten pool. Multiple forging spots are formed along the length of the isothermal band, and the projections of the multiple forging spots on the isothermal band are equidistant in a direction perpendicular to the preset moving direction.

[0011] Specifically, the above technical solution, through the equidistant forging spot layout on the isothermal band, ensures uniform distribution of laser shock energy, effectively converting residual tensile stress in the cladding layer into compressive stress, thus improving fatigue life. The high-frequency laser shock of hundreds of hertz can also generate shock waves near the molten pool. These shock waves, transmitted to the molten pool, can cause vibrations, which is beneficial for the removal of pores and the refinement of the microstructure. Dual-laser linkage control enables real-time coordination between cladding and forging, avoiding the mismatch problem of the heat-affected zone in traditional step-by-step processes, and improving repair accuracy and efficiency.

[0012] Preferably, the isothermal band at the specific temperature is determined by the following steps:

[0013] Collect the surface temperature around the molten pool;

[0014] Multiple isothermal zones are set between the lowest temperature of high-temperature forging and the melting point temperature of the cladding material;

[0015] The isothermal zone at the specific temperature where the laser forging effect is optimal was determined through multiple sets of experiments or simulation analysis.

[0016] Specifically, the above technical solution, based on dynamic isothermal zone division using real-time temperature acquisition, enables the forging position to adapt to changes in the thermal field, improving process adaptability. Through multiple sets of experiments or simulation optimizations, the optimal forging temperature can be customized for different materials (such as aerospace alloys), enhancing versatility. This method reduces trial-and-error costs and improves process stability and repeatability.

[0017] Preferably, the pulse energy of the forging laser is 100mJ~5J, the pulse width is 10~20ns, and the frequency is 10~200Hz. Specifically, through the above technical solution, the parameter range has been optimized and verified, enabling the generation of sufficient shock wave depth without damaging the substrate, and significantly refining the grains. The short pulse width and high frequency ensure concentrated impact energy, reduce heat input, and avoid secondary melting of the cladding layer. This parameter combination is suitable for the repair of high-strength materials, such as critical components like turbine blades.

[0018] Preferably, the method further includes: delaying forging to thermal equilibrium at the start of cladding, and delaying forging to the final molten pool position after cladding. Specifically, through the above technical solution, the delay mechanism avoids forging failure caused by instability in the thermal field during the initial stage of cladding, ensuring consistent impact effects. Post-cladding delayed forging covers the entire thermal cycle, maximizing residual stress conversion and reducing the risk of cracking. This control strategy improves process robustness and is particularly suitable for thermal management in mobile repair scenarios.

[0019] Secondly, this invention also provides a laser melting and forging processing apparatus for realizing the dual-laser linkage control method of laser melting and forging processing. The laser melting and forging processing apparatus includes a laser cladding component, a laser forging component, a temperature acquisition component, a control component, and a scanning galvanometer component. The laser cladding component is used to output a cladding laser; the laser forging component is used to output a forging laser; the temperature acquisition component is used to acquire the surface temperature around the molten pool; the control component is used to divide multiple isothermal zones according to the acquired surface temperature around the molten pool, determine isothermal zones at specific temperatures, and plan the distribution of forging spots on the isothermal zones at specific temperatures; the scanning galvanometer component is disposed in the optical path of the forging laser, and the scanning galvanometer component is used to control the forging path of the forging laser. Specifically, through the above technical solution, the integrated design realizes the integrated operation of cladding and forging, supports in-situ repair, and reduces the equipment footprint. The temperature acquisition component and the control component are linked to optimize the isothermal zones in real time, improving the degree of automation. The scanning galvanometer component allows for rapid path adjustment, adapting to complex curved surface repair.

[0020] Preferably, the laser cladding assembly includes a first laser and a laser cladding head connected by an optical fiber, and the laser forging assembly includes a second laser and a laser forging head connected by an optical fiber (or an optical articulated arm). The scanning galvanometer assembly is connected to the laser forging head. The first laser generates the cladding laser, and the second laser generates the forging laser. The laser cladding head is positioned in front of the preset movement direction, and the laser forging head is positioned behind the preset movement direction. Specifically, through the above technical solution, basic laser cladding and forging functions can be achieved at low cost, making it suitable for linear repair tasks.

[0021] Preferably, the angle between the centerline of the laser cladding head and the normal of the cladding area is A, the angle between the centerline of the laser forging head and the normal of the cladding area is B, A is 5 degrees larger than B, and the center distance D between the laser cladding head and the laser forging head is 10~20mm.

[0022] Preferably, the system further includes a laser cladding head and a 45-degree reflector. The laser cladding assembly includes a first laser, and the laser forging assembly includes a second laser. The first and second lasers are respectively connected to the laser cladding head via optical fibers. The first laser generates the cladding laser, and the second laser generates the forging laser. The laser cladding head is equipped with a 45-degree reflector that can transmit the cladding laser and reflect the forging laser, so that the optical paths of the cladding laser and the forging laser are coaxially arranged. The scanning galvanometer assembly is connected to the laser cladding head. Specifically, the above technical solution can support multi-directional movement, improve repair flexibility, reduce equipment size, and is suitable for in-situ operations in confined spaces.

[0023] Preferably, the assembly further includes a total reflection mirror, a 45-degree reflection mirror, and a field mirror arranged sequentially along the cladding laser optical path. There are two scanning galvanometer assemblies. The laser cladding assembly includes a first laser, and the laser forging assembly includes a second laser. The first laser generates the cladding laser, and the second laser generates the forging laser. The first laser is connected to one of the scanning galvanometer assemblies via an optical fiber, and the second laser is connected to the other scanning galvanometer assembly via an optical robotic arm. A total reflection mirror is provided on the optical path of the cladding laser, and a 45-degree reflection mirror is provided on the optical path of the forging laser. The total reflection mirror and the 45-degree reflection mirror are coaxially arranged. The total reflection mirror reflects the cladding laser, and the 45-degree reflection mirror transmits the cladding laser and reflects the forging laser. The field mirror is located on the shared optical path of the cladding laser and the forging laser.

[0024] Preferably, the cladding laser has a power of 3~6kW and a wavelength of 1.06~1.08μm; the forging laser has a pulse energy of 100mJ, a pulse width of 10~20ns, a wavelength of 0.53μm, and a frequency of 0~200Hz.

[0025] (III) Beneficial Effects

[0026] The above-described technical solution of the present invention has at least the following advantages:

[0027] This invention optimizes the laser forging process through a dual-laser linkage control method and a laser melting and forging processing device, synergistically improving the accuracy of residual stress control, repair efficiency, and adaptability. The equidistant forging spot layout on the isothermal band ensures uniform distribution of laser impact energy, effectively converting residual tensile stress in the cladding layer into compressive stress and improving fatigue life. The dual-laser linkage control enables real-time coordination between cladding and forging, avoiding the mismatch problem of the heat-affected zone in traditional step-by-step processes, thus improving repair accuracy and efficiency. This technology is expected to promote the widespread application of laser melting and forging in the repair of critical equipment, generating significant social benefits. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is one of the structural schematic diagrams of the laser melting and forging processing apparatus provided in an embodiment of the present invention.

[0030] Figure 2 This is a second schematic diagram of the structure of the laser melting and forging processing device provided in an embodiment of the present invention.

[0031] Figure 3 This is a second schematic diagram of the structure of the laser melting and forging processing device provided in an embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram illustrating the implementation of the laser melting and forging processing apparatus provided in an embodiment of the present invention.

[0033] Figure 5 A schematic diagram illustrating the implementation principle of the dual-laser linkage control method for laser melting and forging provided in this embodiment of the invention;

[0034] Figure 6 This is a schematic diagram of the layout of the forging spot provided in an embodiment of the present invention.

[0035] Figure 7 This is a comparison diagram of the cladding layer formed through this embodiment and the cladding layer formed by laser cladding alone.

[0036] The labels for the attached figures are as follows:

[0037] 100. Cladding material; 200. Molten pool; 300. Cladding layer; 400. Isothermal strip; 1. First laser; 2. Laser cladding head; 3. Second laser; 4. Laser forging head; 5. Scanning galvanometer assembly; 6. Laser forging head; 7. 45-degree reflector; 8. Field lens; 9. Optical articulated arm; 10. Total reflection mirror; 11. Cladding laser; 31. Forging laser; 311. Forging spot. Detailed Implementation

[0038] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0039] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this invention will be described in more detail below with reference to specific embodiments:

[0042] This invention provides a laser melting and forging processing apparatus, which includes a laser cladding component, a laser forging component, a temperature acquisition component, a control component, and a scanning galvanometer component. The laser cladding component outputs a cladding laser; the laser forging component outputs a forging laser; the temperature acquisition component acquires the surface temperature around the molten pool; the control component divides the surface temperature around the molten pool into multiple isothermal zones based on the acquired surface temperature, determines isothermal zones at specific temperatures, and plans the distribution of forging spots on the isothermal zones at specific temperatures; the scanning galvanometer component is positioned in the optical path of the forging laser and controls the forging path of the forging laser.

[0043] like Figure 1As shown, in one embodiment, the laser cladding assembly includes a first laser 1 and a laser cladding head 2 connected by optical fibers, and the laser forging assembly includes a second laser 3 and a laser forging head 4 connected by optical fibers. A scanning galvanometer assembly 5 is connected to the laser forging head 4. The first laser 1 generates a cladding laser 11, and the second laser 3 generates a forging laser 31. The laser cladding head 2 is positioned in front of the laser cladding head 4 in a preset moving direction, and the laser forging head 4 is positioned behind the laser cladding head 4 in the preset moving direction. The angle between the centerline of the laser cladding head 2 and the normal to the cladding area is A, and the angle between the centerline of the laser forging head 4 and the normal to the cladding area is B. Angles A and B are located on opposite sides of the normal to the cladding area, with A being 5 degrees larger than B, to prevent the cladding laser 11 from reflecting off the laser output port of the forging laser 31. The center distance D between the laser cladding head 2 and the laser forging head 4 is 10-20 mm. Specifically, the cladding laser 11 is a 3-6 kW fiber laser, transmitted to the laser cladding head 2 via optical fiber. The forging laser 31 uses a pulsed laser of 100mJ~5J with a pulse width of 10~20ns and a frequency of 10~200Hz. It is transmitted to the scanning galvanometer assembly 5 via fiber optic or optical articulated arm and finally output from the laser forging head 4. The laser forging path is controlled by scanning software.

[0044] Since laser forging needs to be performed after laser cladding, and the laser cladding head 2 and laser forging head 4 cannot quickly switch positions, and due to the obstruction of the laser cladding head 2, it is not suitable for reciprocating motion, the laser forging processing apparatus provided in the above embodiment is only suitable for unidirectional motion. Although it is simple and easy to implement, and can be improved on the existing laser cladding device to realize the laser forging function, the unidirectional motion limits the efficiency of laser forging.

[0045] If laser cladding and forging in any direction are required, the laser melting and forging processing apparatus provided in the following embodiments can be used:

[0046] like Figure 2 As shown, in one embodiment (a combination of cladding head and galvanometer), the laser cladding assembly further includes a laser forging head 6 and a 45-degree reflector 7. The laser cladding assembly includes a first laser 1, and the laser forging assembly includes a second laser 3. The first laser 1 and the second laser 3 are respectively connected to the laser forging head 6 via optical fibers. The first laser 1 is used to generate a cladding laser 11, and the second laser 3 is used to generate a forging laser 31. The laser forging head 6 is provided with a 45-degree reflector 7, which can transmit the cladding laser 11 and reflect the forging laser 31, so that the optical path of the cladding laser 11 and the optical path of the forging laser 31 are coaxially arranged. The scanning galvanometer assembly 5 is connected to the laser forging head 6.

[0047] like Figure 3As shown, in another embodiment (b, dual-mirror combination), the laser cladding assembly includes a first laser 1, and the laser forging assembly includes a second laser 3. The first laser 1 generates a cladding laser 11, and the second laser 3 generates a forging laser 31. Scanning galvanometer assemblies 5 are provided on the optical paths of both the cladding laser 11 and the forging laser 31. The first laser 1 is connected to its corresponding scanning galvanometer assembly 5 via an optical fiber, and the second laser 3 is connected to its corresponding scanning galvanometer assembly 5 via an optical articulated arm 9, to adapt to arbitrary directions in pre-powder laying conditions. The laser cladding and forging processes are performed, but the two scanning galvanometer assemblies 5 need to use mirrors with different wavelengths. The cladding laser 11 uses a 1.06~1.08μm wavelength laser, and a total reflection mirror 10 is set in the optical path of the cladding laser 11. The total reflection mirror 10 can reflect the 1.06~1.08μm wavelength laser. The forging laser 31 uses a 0.53μm wavelength laser, and a 45-degree reflection mirror 7 is set in the optical path of the forging laser 31. The 45-degree reflection mirror 7 can reflect the 0.53μm wavelength laser and transmit the 1.06~1.08μm wavelength laser. The two scanning galvanometer assemblies 5 do not have focusing field lenses installed, but instead share a field lens 8. To facilitate the adjustment of the positions of the two lasers, a focusing lens assembly can be added between the scanning galvanometer assembly 5 of the forging laser 31 and the 45-degree reflector 7. While prioritizing the size of the cladding spot, the size of the forging spot can be adjusted appropriately. The forging laser 31 moves with the cladding laser 11. When the direction of movement of the cladding laser 11 changes, the forging laser 31 quickly switches to the rear of the direction of movement through the scanning galvanometer assembly 5.

[0048] Specifically, the cladding laser 11 uses a 3-6kW continuous fiber laser with a wavelength of 1.06-1.08μm, which is transmitted to the laser forging head 6 via fiber optic cable. The forging laser 31 uses a 100mJ pulsed laser with a pulse width of 10-20ns, a wavelength of 0.53μm, and a frequency of 10-200Hz. It is transmitted to the scanning galvanometer assembly 5 via fiber optic cable or an optical articulated arm, and finally output from the laser forging head 6. The forging laser 31 output from the scanning galvanometer assembly 5 enters from the side of the laser forging head 6 and passes through a 45-degree reflecting mirror 7 that can reflect 0.53μm wavelength laser and fully transmit 1.06-1.08μm wavelength laser. After emission, the forging laser 31 is coaxial with the transmitted cladding laser 11. However, under normal circumstances, the forging laser 31 acts around the periphery of the molten pool. By controlling the laser forging path through scanning software, 360-degree omnidirectional forging around the molten pool can be achieved. The isotherm band 400 in a specific temperature range is tested using an infrared thermometer (temperature acquisition component), and the movement is performed according to the isotherm using a galvanometer scanning program.

[0049] like Figures 4 to 6 As shown, this embodiment of the invention also provides a dual-laser linkage control method for laser melting and forging, comprising the following steps:

[0050] The laser cladding assembly moves along a preset moving direction and generates a cladding laser 11 that acts on the cladding material 100 to form a molten pool 200. After the molten pool 200 solidifies, a cladding layer 300 is formed.

[0051] The laser forging assembly moves along a preset moving direction and generates a forging laser 31 that acts on an isothermal zone 400 at a specific temperature behind the molten pool 200. Multiple forging spots 311 are formed along the length of the isothermal zone 400, and the projections of these multiple forging spots 311 on the isothermal zone 400 in a direction perpendicular to the preset moving direction are equidistant. The layout of the forging spots 311 is as follows: Figure 5 As shown, this layout can concentrate the forging spot 311 in the middle region of the elliptical isotherm, and quickly pass through the side region of the elliptical isotherm, so as to improve the effect of laser forging, turn the residual tensile stress into compressive stress, and improve the control effect of residual stress.

[0052] At the start of cladding, the forging is delayed until thermal equilibrium is reached, and after the cladding is completed, the forging is delayed until the final molten pool position is reached.

[0053] In one embodiment, the isothermal band 400 at a specific temperature is determined by the following steps:

[0054] Collect the surface temperature around the molten pool 200;

[0055] Multiple isothermal zones of 400° are set between the lowest high-temperature forging temperature and the melting point temperature of the cladding material. For example, when the lowest high-temperature forging temperature T... min When the temperature is 273 degrees, n isotherms (n≥1) are set between the melting point and 273 degrees. The melting point temperature is defined as T0, and T1 = T0 ~ (T0 ~ T1). min ) / n,T i = T0~(T0~T min )×i / n.

[0056] The optimal isothermal band 400 for laser forging is determined through multiple sets of experiments or simulation analysis. Specifically, the optimal isothermal band 400 for laser forging can be obtained by optimizing process parameters. This can be achieved by setting up multiple sets of experiments (selecting the required cladding material and corresponding laser parameters) and testing the experimental results before the process begins, or by using appropriate simulation design software.

[0057] like Figure 7 As shown, there are obvious laser impact spot marks after laser melting and forging. Residual compressive stress can be obtained on the surface after laser melting and forging, and the grain structure of the cladding layer is refined.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual laser linkage control method for laser fusion forging processing, characterized in that, Laser melting and forging processing equipment includes: Laser cladding assembly, used to output cladding laser; Laser forging assembly, used to output forging laser; Temperature acquisition component, used to acquire the surface temperature around the molten pool; The control component is used to divide multiple isothermal zones based on the surface temperature around the molten pool collected, determine isothermal zones at specific temperatures, and plan the distribution of forging spots on isothermal zones at specific temperatures. A scanning galvanometer assembly is disposed in the optical path of the forging laser, and the scanning galvanometer assembly is used to control the forging path of the forging laser; The method includes the following steps: The laser cladding assembly moves along a preset direction and generates a cladding laser that acts on the cladding material to form a molten pool. After the molten pool solidifies, a cladding layer is formed. The laser forging assembly moves along the preset moving direction and generates an isothermal zone at a specific temperature behind the molten pool, which is formed by the forging laser. Multiple forging spots are formed along the length of the isothermal zone. The projections of the multiple forging spots on the isothermal zone in the direction perpendicular to the preset moving direction are equidistant. The equidistant forging spot layout on the isothermal zone ensures uniform distribution of laser impact energy, effectively converting the residual tensile stress in the cladding layer into compressive stress, thereby improving fatigue life. The high-frequency laser impact of hundreds of hertz can also generate shock waves near the molten pool. The shock waves transmitted to the molten pool can also generate vibrations in the molten pool, which is beneficial for the discharge of pores and the refinement of the microstructure.

2. The dual laser linkage control method for laser fuse processing according to claim 1, wherein, The isothermal band at the specific temperature is determined through the following steps: Collect the surface temperature around the molten pool; Multiple isothermal zones are set between the lowest temperature of high-temperature forging and the melting point temperature of the cladding material; The isothermal zone at the specific temperature where the laser forging effect is optimal was determined through multiple sets of experiments or simulation analysis.

3. The dual laser linkage control method for laser fuse processing of claim 1, wherein, The pulse energy of the forging laser is 100mJ~5J, the pulse width is 10~20ns, and the frequency is 10~200Hz.

4. The dual laser linkage control method for laser fuse processing of claim 1, wherein, Also includes: At the start of cladding, the forging is delayed until thermal equilibrium is reached, and after the cladding is completed, the forging is delayed until the final molten pool position is reached.

5. The dual laser linkage control method for laser fuse processing of claim 1, wherein, The laser cladding assembly includes a first laser and a laser cladding head connected by an optical fiber, and the laser forging assembly includes a second laser and a laser forging head connected by an optical fiber. The scanning galvanometer assembly is connected to the laser forging head. The first laser is used to generate cladding laser, and the second laser is used to generate forging laser. The laser cladding head is located in front of the preset movement direction, and the laser forging head is located behind the preset movement direction.

6. The dual laser linkage control method for laser fuse processing of claim 5, wherein, The angle between the centerline of the laser cladding head and the normal of the cladding area is A, and the angle between the centerline of the laser forging head and the normal of the cladding area is B. A is 5 degrees larger than B, and the center distance D between the laser cladding head and the laser forging head is 10~20mm.

7. The dual laser linkage control method for laser fuse processing of claim 1, wherein, It also includes a laser cladding head and a 45-degree reflector. The laser cladding assembly includes a first laser, and the laser forging assembly includes a second laser. The first laser and the second laser are respectively connected to the laser cladding head via optical fibers. The first laser is used to generate a cladding laser, and the second laser is used to generate a forging laser. The laser cladding head is provided with a 45-degree reflector, which can transmit the cladding laser and reflect the forging laser, so that the optical paths of the cladding laser and the forging laser are coaxially arranged. The scanning galvanometer assembly is connected to the laser cladding head.

8. The dual laser linkage control method for laser fuse processing of claim 5, wherein, It also includes a total reflection mirror, a 45-degree reflection mirror, and a field mirror arranged sequentially along the cladding laser optical path. There are two scanning galvanometer assemblies. The first laser is connected to one of the scanning galvanometer assemblies via an optical fiber, and the second laser is connected to the other scanning galvanometer assembly via an optical robotic arm. A total reflection mirror is provided on the optical path of the cladding laser, and a 45-degree reflection mirror is provided on the optical path of the forging laser. The total reflection mirror and the 45-degree reflection mirror are coaxially arranged. The total reflection mirror can reflect the cladding laser, and the 45-degree reflection mirror can transmit the cladding laser and reflect the forging laser. The field mirror is located on the optical path shared by the cladding laser and the forging laser.

9. The dual laser linkage control method for laser fuse processing according to claim 7 or 8, wherein, The cladding laser has a power of 3~6kW and a wavelength of 1.06~1.08μm; the forging laser has a pulse energy of 100mJ, a pulse width of 10~20ns, a wavelength of 0.53μm, and a frequency of 0~200Hz.

Images