A stress regulation apparatus and method for use in an amorphous alloy manufacturing process

Abstract

The application discloses a stress regulation device and method for an amorphous alloy manufacturing process, relates to the field of amorphous alloy manufacturing, and is characterized in that the device and method are used for monitoring the morphology and temperature information of a powder bed, a molten pool and a workpiece in a point-by-point and layer-by-layer manufacturing process of the amorphous alloy by using an L-PBF additive manufacturing system in real time, simulating the L-PBF additive manufacturing process by using the finite element analysis software and the morphology and temperature information of the powder bed, the molten pool and the workpiece after the L-PBF additive manufacturing system completes the manufacturing of one or more layers, predicting the change rule and distribution characteristics of the overall and local stress and strain field of the workpiece, calling a stress regulation process parameter library based on the prediction result, determining the process parameters of laser impact, and regulating the stress of the workpiece by the laser impact system according to the determined process parameters after the completion of one or more layers, so that the accumulation of thermal stress is avoided, and the crack defects in the amorphous alloy forming process are eliminated.

Description

Technical Field

[0001] This invention relates to the field of amorphous alloy manufacturing, and more particularly to a stress control device and method for use in the amorphous alloy manufacturing process. Background Technology

[0002] Amorphous alloys possess a short-range ordered and long-range disordered atomic arrangement structure, exhibiting excellent properties in mechanics, magnetism, catalysis, and other fields, and thus possessing great research value and application potential. However, the formation of the amorphous phase requires a high cooling rate, and traditional preparation techniques are limited by the alloy's own heat dissipation capacity. As the three-dimensional size of the prepared sample increases, regardless of external cooling methods, the cooling rate in the central region of the sample will gradually decrease, ultimately making it difficult for the amorphous phase to form in the central region, thereby limiting the three-dimensional size of the prepared amorphous alloy.

[0003] Additive manufacturing technology is a free-form material forming technology that has emerged in recent years. This technology employs a point-by-point, layer-by-layer fabrication process, eliminating the reliance on molds and other components found in traditional manufacturing techniques. It overcomes the limitation of traditional fabrication techniques, where the central region of the sample cannot maintain a high cooling rate as the three-dimensional size of the sample increases, thus offering a potential solution to the problem of limited three-dimensional dimensions in amorphous alloys. Currently, amorphous alloy additive manufacturing technologies mainly include Laser Powder Bed Fusion (L-PBF), Laser Direct Energy Deposition (L-DED), Fused Filament Fabrication (FFF), Thermal Spraying Additive Manufacturing (TSAM), and Ultrasonic Additive Manufacturing (UAM). Among these, the cooling rate during the solidification process of the molten pool in L-PBF technology is approximately 10⁴–10⁷ K / s, which meets the cooling rate requirements for the formation of most amorphous phases. Therefore, L-PBF technology has gradually become an important approach for the manufacture of large-size amorphous alloys.

[0004] Amorphous alloys lack crystalline structural defects such as dislocations and grain boundaries, making them difficult to work harden. This leads to shear bands forming and rapidly propagating into cracks, resulting in a lack of macroscopic plasticity at room temperature. Because amorphous alloys inherently lack macroscopic plasticity, and the L-PBF forming process involves significant thermal stress, which accumulates as the sample size increases, exceeding the crack initiation threshold, the prepared amorphous alloy develops cracks. The cracking problem caused by thermal stress accumulation has severely hampered the further development of L-PBF technology for amorphous alloy preparation. Therefore, a method and equipment are urgently needed to achieve stress control during the L-PBF amorphous alloy preparation process. Summary of the Invention

[0005] Because of the significant thermal stress present during the L-PBF forming process, the thermal stress accumulates and exceeds the crack initiation threshold as the size of the prepared sample increases, leading to cracks in the prepared amorphous alloy. To address this technical problem, this invention proposes a stress control device for the amorphous alloy manufacturing process, applied to an L-PBF additive manufacturing system. The stress control device includes:

[0006] The shape and temperature monitoring system is used to monitor in real time the morphology and temperature information of the powder bed, molten pool and workpiece during the point-by-point and layer-by-layer manufacturing of amorphous alloys using the L-PBF additive manufacturing system.

[0007] The control module, which is connected to the shape and temperature monitoring system, is used to simulate the L-PBF additive manufacturing process by using finite element analysis software to analyze the morphology and temperature information of the powder bed, molten pool and workpiece after each layer or layer of manufacturing is completed in the L-PBF additive manufacturing system. This is to predict the variation law and distribution characteristics of the overall and local stress and strain fields of the workpiece, and to retrieve the stress control process parameter library based on the prediction results to determine the process parameters of laser shock.

[0008] A laser shock system includes a laser source and a laser shock control module; the laser shock control module is used to adjust the stress of the workpiece using the laser source according to the process parameters determined by the control module.

[0009] Furthermore, the shape and temperature monitoring system specifically includes:

[0010] The structured light device and the infrared thermal imaging device are used to monitor in real time the morphology and temperature of the powder bed, molten pool, and workpiece during the point-to-point and layer-to-layer manufacturing of amorphous alloys using the L-PBF additive manufacturing system.

[0011] Furthermore, the method for obtaining the stress control process parameter library is as follows:

[0012] In the process of manufacturing amorphous alloys point-by-point and layer-by-layer using the L-PBF additive manufacturing system, multiple stress control experiments are conducted layer by layer using a laser shock osmosis system, and experimental data corresponding to each control are acquired. Analysis results are obtained from the experimental data. Among the multiple analysis results corresponding to each layer, the optimal analysis result is obtained based on the magnitude of the overall and local stresses. A corresponding stress matching range is set according to the overall and local stresses in the optimal analysis result. The analysis results include the overall and local stresses, strain evolution laws, and distribution characteristics of the amorphous alloy. A stress control process parameter library is constructed using the optimal analysis results and their corresponding stress matching ranges, along with the experimental data.

[0013] Furthermore, the process parameters and experimental data include: laser pulse width, laser energy, laser frequency, impact position, impact path, number of impact layers, and number of impacts.

[0014] This invention also proposes a stress control method for the manufacturing process of amorphous alloys, comprising:

[0015] S1: Real-time monitoring of the morphology and temperature information of the powder bed, molten pool and workpiece during the manufacturing of amorphous alloys using the L-PBF additive manufacturing system;

[0016] S2: Set the set of layers to be adjusted through the control module; the set of layers to be adjusted includes the number of layers corresponding to one or more layers for which stress adjustment is to be performed;

[0017] S3: The control module determines whether the L-PBF additive manufacturing system has completed the manufacturing of the current layer. If so, it determines whether the current layer belongs to the set of layers to be adjusted. If so, it proceeds to the next step; otherwise, it jumps to step S6.

[0018] S4: The L-PBF additive manufacturing process is simulated using finite element analysis software with the morphology and temperature information of powder bed, molten pool and workpiece to predict the evolution and distribution characteristics of overall and local stress and strain of the workpiece, and the corresponding process parameters are retrieved from the stress control process parameter library based on the prediction results.

[0019] S5: Based on the retrieved process parameters, stress is controlled on the workpiece using a laser shock system;

[0020] S6: Determine whether the current layer is the last layer for workpiece manufacturing through the control module. If not, return to step S3.

[0021] Furthermore, the stress control method further includes:

[0022] Construct a stress control process parameter library, specifically as follows:

[0023] Amorphous alloys are manufactured point-by-point and layer-by-layer using an L-PBF additive manufacturing system. During the manufacturing process, multiple stress control experiments are conducted layer by layer using a laser shock osmosis system, and experimental data corresponding to each control are acquired. Analytical results are obtained from the experimental data. Among the multiple analytical results corresponding to each layer, the optimal analytical result is obtained based on the magnitude of the overall and local stresses. The corresponding stress matching range is set according to the overall and local stresses in the optimal analytical result. The analytical results include the evolution law and distribution characteristics of the overall and local stresses and strains of the amorphous alloy. A stress control process parameter library is constructed by combining the optimal analytical results and their corresponding stress matching ranges with the experimental data.

[0024] Furthermore, the process parameters and experimental data include: laser pulse width, laser energy, laser frequency, impact position, impact path, number of impact layers, and number of impacts.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] (1) This invention monitors the morphology and temperature information of the powder bed, molten pool and workpiece in real time during the manufacturing of amorphous alloys point by point and layer by layer using the L-PBF additive manufacturing system. After each layer or layer of manufacturing is completed by the L-PBF additive manufacturing system, the L-PBF additive manufacturing process is simulated using the morphology and temperature information of the powder bed, molten pool and workpiece using finite element analysis software. This is to predict the variation law and distribution characteristics of the overall and local stress and strain fields of the workpiece. Based on the prediction results, the stress control process parameter library is retrieved to determine the process parameters of laser shock. The laser shock system controls the stress of the workpiece according to the determined process parameters. That is, this invention controls the stress state of the workpiece after each layer or layer is completed by the laser shock system, avoids the accumulation of thermal stress, and eliminates the crack defects that occur in the forming process of amorphous alloys.

[0027] (2) Based on the real-time acquired morphology and temperature information of powder bed, molten pool and workpiece, the present invention controls the compressive stress deformation generated during the manufacturing process layer by layer, effectively reducing the porosity defects of amorphous alloys and improving the comprehensive mechanical properties of amorphous alloys.

[0028] (3) In the manufacturing process, stress is controlled by a laser shock system. Based on this, compressive stress and shear bands are pre-formed in the amorphous alloy, which improves the degree of structural rejuvenation of the amorphous alloy and the comprehensive mechanical properties of the amorphous alloy.

[0029] (4) Based on the real-time acquired morphology and temperature information of powder bed, molten pool and workpiece, the present invention performs stress regulation layer by layer, thereby optimizing and controlling the local and overall deformation and stress distribution of amorphous alloy workpiece, reducing stress concentration, and improving the forming accuracy and surface quality of amorphous alloy workpiece.

[0030] (5) Compared with stress control methods such as mechanical impact and rolling, stress control using laser impact has higher processing flexibility and processing accessibility, and is more suitable for workpieces with complex structures. Attached Figure Description

[0031] Figure 1 This is a structural diagram of a stress control device used in the manufacturing process of amorphous alloys.

[0032] Figure 2 This is a flowchart of a stress control method used in the manufacturing process of amorphous alloys.

[0033] In the picture:

[0034] 1. Laser source for L-PBF additive manufacturing system; 2. Motion system for L-PBF additive manufacturing system; 3. Laser source for laser shock system; 4. Structured light device; 5. Infrared thermal imaging device; 6. Control system; 7. Amorphous alloy workpiece. Detailed Implementation

[0035] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0036] Example 1

[0037] As the size of the prepared samples increases, thermal stress accumulates during the preparation of amorphous alloys using the L-PBF technique, exceeding the crack initiation threshold and causing cracks to appear in the prepared amorphous alloys. To address this technical problem, such as... Figure 1 As shown, this invention proposes a stress control device for the manufacturing process of amorphous alloys, applied to an L-PBF additive manufacturing system;

[0038] The L-PBF additive manufacturing system includes a laser source 1, a motion system 2 (including a powder cylinder), and a control system 6. It should be noted that in this embodiment, the function of the control module of the stress control device is integrated into the control system 6 of the L-PBF additive manufacturing system.

[0039] The stress regulation device includes:

[0040] The shape and temperature monitoring system is used to monitor in real time the morphology and temperature information of the powder bed, molten pool and workpiece during the point-by-point and layer-by-layer manufacturing of amorphous alloys using the L-PBF additive manufacturing system.

[0041] The shape and temperature monitoring system specifically includes:

[0042] The structured light device 4 and the infrared thermal imaging device 5 are used to monitor in real time the morphology and temperature of the powder bed, molten pool and workpiece during the process of manufacturing amorphous alloys point by point and layer by layer using the L-PBF additive manufacturing system.

[0043] It should be noted that this embodiment is not limited to the structured light device 4 and the infrared thermal imaging device 5. The structured light device 4 can also be replaced with a CCD camera or laser line scanner, and the infrared thermal imaging device 5 can be replaced with a dual-color pyrometer or photodiode, etc., all of which can achieve the purpose of morphology and temperature monitoring.

[0044] The control module, which is connected to the shape and temperature monitoring system, is used to simulate the L-PBF additive manufacturing process by using finite element analysis software to analyze the morphology and temperature information of the powder bed, molten pool and workpiece after each layer or layer of manufacturing is completed in the L-PBF additive manufacturing system. This is to predict the variation law and distribution characteristics of the overall and local stress and strain fields of the workpiece, and to retrieve the stress control process parameter library based on the prediction results to determine the process parameters of laser shock.

[0045] In this embodiment, the stress control process parameter library is retrieved based on the prediction results to determine the process parameters of laser shock. Specifically, the stress matching ranges of the overall stress and local stress in the prediction results are obtained. When the stress matching ranges of the overall stress and local stress correspond to different analysis results, the analysis result corresponding to the stress matching range of the overall stress is taken as the target object, and the experimental data corresponding to the target object is set as the process parameters of laser shock.

[0046] The method for obtaining the stress control process parameter library is as follows:

[0047] In the process of manufacturing amorphous alloys layer by layer using the L-PBF additive manufacturing system, stress control experiments are conducted layer by layer with different process parameters (multiple sets of different process parameters are preset) using a laser shock system. Experimental data corresponding to each control is acquired, and analysis results are obtained from the experimental data. The optimal analysis result is obtained from the multiple analysis results corresponding to each layer based on the magnitude of the overall and local stresses. A corresponding stress matching range is set according to the overall and local stresses in the optimal analysis result. The analysis results include the overall and local stresses of the amorphous alloy, strain evolution laws, control mechanisms, and distribution characteristics. A stress control process parameter library is constructed using the optimal analysis results and their corresponding stress matching ranges, along with the experimental data.

[0048] It should be noted that in this embodiment, upper and lower limits are set with the overall stress and local stress as intermediate values ​​to obtain the corresponding stress matching ranges. Furthermore, the overall stress matching range for each layer is continuous (e.g., [1, 5]). 第一层 [5,8) 第二层 [8,15) 第三层…), so that when retrieving the stress control process parameter library based on the prediction results, the most suitable stress matching range can be matched, and the numerical range of the local stress matching range of each layer is set in the same way as the overall stress matching range.

[0049] It should be explained that, in this embodiment, the method for obtaining the optimal analysis result based on the magnitude of overall and local stress is as follows:

[0050] The weights of the overall stress and local stress of the amorphous alloy are set according to the degree of influence of the overall stress and local stress on the quality of the final formed amorphous alloy workpiece (obtained from prior experience).

[0051] The weight values ​​for each analysis result are calculated by weighting the overall stress and local stress of the amorphous alloy. This example uses one analysis result (analysis result 1) as an illustration:

[0052] weight value 分析结果1 =Overall stress 分析结果1 *Weight 整体应力 +local stress 分析结果1 *Weight 局部应力 ;

[0053] It should be noted here that there may be multiple local stresses (e.g., local stress 1, local stress 2, local stress 3), and each local stress is assigned a corresponding weight. Therefore:

[0054] weight value 分析结果1 =Overall stress 分析结果1 *Weight 整体应力 +Local stress 1 分析结果1 *Weight 局部应力1 +Local stress 2 分析结果1 *Weight 局部应力2 +Local stress 3 分析结果1 *Weight 局部应力3 ;

[0055] The analysis result corresponding to the minimum weight value is set as the optimal analysis result.

[0056] The process parameters and experimental data include: laser pulse width, laser energy, laser frequency, impact position, impact path, number of impact layers, and number of impacts.

[0057] The laser shock system includes a laser source 3 and a laser shock control module; the laser shock control module is used to apply the laser source to the workpiece (i.e., according to the process parameters determined by the control module) based on the process parameters. Figure 1 Stress control is performed on the amorphous alloy workpiece 7).

[0058] It should be noted that the function of the laser shock control module is integrated into the control system 6 of the L-PBF additive manufacturing system. Furthermore, in this embodiment, during stress regulation, to obtain a better processing window and temperature range, a laser, electric arc, or other heat source can be added for auxiliary preheating or slow cooling to optimize and expand the processing window; alternatively, the laser source of the L-PBF additive manufacturing system can be used as an auxiliary heat source.

[0059] The stress control device proposed in this embodiment is not only applicable to the manufacture of amorphous alloys, but also to the manufacture of amorphous composite materials and other brittle alloy materials.

[0060] This invention monitors the morphology and temperature of the powder bed, molten pool, and workpiece in real time during the point-to-layer fabrication of amorphous alloys using an L-PBF additive manufacturing system. After each layer or layer is completed, finite element analysis software is used to simulate the L-PBF additive manufacturing process using the morphology and temperature information of the powder bed, molten pool, and workpiece. This allows for the prediction of the overall and local stress and strain field variations and distribution characteristics of the workpiece. Based on the prediction results, a stress control process parameter library is retrieved to determine the laser shock process parameters. The laser shock system then controls the stress on the workpiece according to these determined process parameters. In other words, this invention uses the laser shock system to control the stress state of the workpiece after each layer or layer is completed, avoiding thermal stress accumulation and eliminating crack defects that occur during the amorphous alloy forming process.

[0061] Example 2

[0062] like Figure 2 As shown, the present invention also proposes a stress control method for the manufacturing process of amorphous alloys, comprising:

[0063] S1: Real-time monitoring of the morphology and temperature information of the powder bed, molten pool and workpiece during the manufacturing of amorphous alloys using the L-PBF additive manufacturing system;

[0064] S2: Set the set of layers to be adjusted through the control module; the set of layers to be adjusted includes the number of layers corresponding to one or more layers for which stress adjustment is to be performed;

[0065] S3: The control module determines whether the L-PBF additive manufacturing system has completed the manufacturing of the current layer. If so, it determines whether the current layer belongs to the set of layers to be adjusted. If so, it proceeds to the next step; otherwise, it jumps to step S6.

[0066] S4: The L-PBF additive manufacturing process is simulated using finite element analysis software with the morphology and temperature information of powder bed, molten pool and workpiece to predict the evolution and distribution characteristics of overall and local stress and strain of the workpiece, and the corresponding process parameters are retrieved from the stress control process parameter library based on the prediction results.

[0067] S5: Based on the retrieved process parameters, stress is controlled on the workpiece using a laser shock system;

[0068] S6: The control module determines whether the current layer is the last layer of workpiece manufacturing. If not, the manufacturing of the next layer continues and returns to step S3. If yes, it means that the amorphous alloy workpiece 7 has been formed and the manufacturing process ends.

[0069] The stress control method further includes:

[0070] Construct a stress control process parameter library, specifically as follows:

[0071] Amorphous alloys are manufactured point-by-point and layer-by-layer using an L-PBF additive manufacturing system. During the manufacturing process, multiple stress control experiments are conducted layer by layer using a laser shock osmosis system, and experimental data corresponding to each control are acquired. Analytical results are obtained from the experimental data. Among the multiple analytical results corresponding to each layer, the optimal analytical result is obtained based on the magnitude of the overall and local stresses. The corresponding stress matching range is set according to the overall and local stresses in the optimal analytical result. The analytical results include the evolution law and distribution characteristics of the overall and local stresses and strains of the amorphous alloy. A stress control process parameter library is constructed by combining the optimal analytical results and their corresponding stress matching ranges with the experimental data.

[0072] The process parameters and experimental data include: laser pulse width, laser energy, laser frequency, impact position, impact path, number of impact layers, and number of impacts.

[0073] The method proposed in this embodiment is applicable not only to L-PBF additive manufacturing of amorphous alloys, but also to other additive manufacturing of amorphous alloys, such as L-DED, FFF, TSAM, and other technologies.

[0074] This invention utilizes real-time acquired information on the morphology and temperature of the powder bed, molten pool, and workpiece to perform stress regulation layer by layer. This optimizes the control of local and overall deformation and stress distribution in amorphous alloy workpieces, reduces stress concentration, and improves the forming accuracy and surface quality of amorphous alloy workpieces.

[0075] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0076] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0078] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A stress control device for use in the manufacturing process of amorphous alloys, applied to an L-PBF additive manufacturing system, characterized in that, The stress regulation device includes: The shape and temperature monitoring system is used to monitor the morphology and temperature information of the powder bed, molten pool and workpiece in real time during the process of manufacturing amorphous alloys point by point and layer by layer using the L-PBF additive manufacturing system. The control module, which is connected to the shape and temperature monitoring system, is used to simulate the L-PBF additive manufacturing process by using finite element analysis software to analyze the morphology and temperature information of the powder bed, molten pool and workpiece after each layer or layer of manufacturing is completed in the L-PBF additive manufacturing system. This is to predict the variation law and distribution characteristics of the overall and local stress and strain fields of the workpiece, and to retrieve the stress control process parameter library based on the prediction results to determine the process parameters of laser shock. A laser shock system includes a laser source and a laser shock control module; the laser shock control module is used to adjust the stress of the workpiece using the laser source according to the process parameters determined by the control module.

2. The stress control device for amorphous alloy manufacturing process according to claim 1, characterized in that, The shape and temperature monitoring system specifically includes: The structured light device and the infrared thermal imaging device are used to monitor in real time the morphology and temperature of the powder bed, molten pool, and workpiece during the point-to-point and layer-to-layer manufacturing of amorphous alloys using the L-PBF additive manufacturing system.

3. The stress control device for amorphous alloy manufacturing process according to claim 2, characterized in that, The method for obtaining the stress control process parameter library is as follows: In the process of manufacturing amorphous alloys point-by-point and layer-by-layer using the L-PBF additive manufacturing system, multiple stress control experiments are conducted layer by layer using a laser shock osmosis system, and experimental data corresponding to each control are acquired. Analysis results are obtained from the experimental data. Among the multiple analysis results corresponding to each layer, the optimal analysis result is obtained based on the magnitude of the overall and local stresses. A corresponding stress matching range is set according to the overall and local stresses in the optimal analysis result. The analysis results include the overall and local stresses, strain evolution laws, and distribution characteristics of the amorphous alloy. A stress control process parameter library is constructed using the optimal analysis results and their corresponding stress matching ranges, along with the experimental data.

4. The stress control device for amorphous alloy manufacturing process according to claim 3, characterized in that, The process parameters and experimental data include: laser pulse width, laser energy, laser frequency, impact position, impact path, number of impact layers, and number of impacts.

5. A method for stress control in the manufacturing process of amorphous alloys, characterized in that, include: S1: Real-time monitoring of the morphology and temperature information of the powder bed, molten pool and workpiece during the manufacturing of amorphous alloys using the L-PBF additive manufacturing system; S2: Set the set of layers to be adjusted through the control module; the set of layers to be adjusted includes the number of layers corresponding to one or more layers for which stress adjustment is to be performed; S3: The control module determines whether the L-PBF additive manufacturing system has completed the manufacturing of the current layer. If so, it determines whether the current layer belongs to the set of layers to be adjusted. If so, it proceeds to the next step; otherwise, it jumps to step S6. S4: The L-PBF additive manufacturing process is simulated using finite element analysis software with the morphology and temperature information of powder bed, molten pool and workpiece to predict the evolution and distribution characteristics of overall and local stress and strain of the workpiece, and the corresponding process parameters are retrieved from the stress control process parameter library based on the prediction results. S5: Based on the retrieved process parameters, stress is controlled on the workpiece using a laser shock system; S6: Determine whether the current layer is the last layer for workpiece manufacturing through the control module. If not, return to step S3.

6. The stress control method for amorphous alloy manufacturing process according to claim 5, characterized in that, The stress control method further includes: Construct a stress control process parameter library, specifically as follows: Amorphous alloys are manufactured point-by-point and layer-by-layer using an L-PBF additive manufacturing system. During the manufacturing process, multiple stress control experiments are conducted layer by layer using a laser shock osmosis system, and experimental data corresponding to each control are acquired. Analytical results are obtained from the experimental data. Among the multiple analytical results corresponding to each layer, the optimal analytical result is obtained based on the magnitude of the overall and local stresses. The corresponding stress matching range is set according to the overall and local stresses in the optimal analytical result. The analytical results include the evolution law and distribution characteristics of the overall and local stresses and strains of the amorphous alloy. A stress control process parameter library is constructed by combining the optimal analytical results and their corresponding stress matching ranges with the experimental data.

7. A stress control method for amorphous alloy manufacturing process according to claim 6, characterized in that, The process parameters and experimental data include: laser pulse width, laser energy, laser frequency, impact position, impact path, number of impact layers, and number of impacts.

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