Metal laser fuse wire additive manufacturing device based on microgravity and vacuum conditions

Abstract

The invention discloses a metal laser fuse additive manufacturing device based on microgravity and vacuum conditions, which belongs to the field of metal material additive manufacturing in a space environment and comprises a controller module, a mechanical and motion module, a laser module, a thermal control and monitoring module and a data acquisition module. The mechanical and moving module comprises a device shell internally provided with multiple layers of cavities, a feeding mechanism arranged at the bottom of the lower cavity of the device shell, and a bottom plate moving mechanism. The laser module, the feeding mechanism, the bottom plate movement mechanism, the thermal control and monitoring module and the data acquisition module are all in circuit connection with the controller module; in the working state, an amorphous alloy bar is softened under the laser action of the laser module and is driven by the feeding mechanism to make contact with the bottom plate, the amorphous alloy is further softened along with follow-up heating, and the amorphous alloy is bonded with the bottom plate by adjusting movement of the bottom plate and naturally cooling, so that metal forming is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal material additive manufacturing in a space environment, and in particular to a metal laser fuse additive manufacturing device based on microgravity and vacuum conditions. Background Art

[0002] The development of space manufacturing technology is of great significance to the successful implementation of future deep space exploration missions. At present, non-metallic materials have been technically verified in the space environment, and my country has achieved the verification of additive manufacturing technology for non-metallic materials in the space environment in 2021. Compared with non-metallic materials, additive manufacturing of metal materials has the characteristics of high melting point and difficult control, and has higher requirements for the device requirements and process control process.

[0003] Internationally, the German Aerospace Center DLR, the European Union's ESA, and the U.S. space agency NASA have successively realized the additive manufacturing of metal materials under microgravity conditions through microgravity platforms such as sounding rockets and weightless aircraft. In 2019, Germany carried out the manufacturing process of metal powder on a parabolic aircraft, and through multiple discontinuous parabolic flights, it realized the manufacturing of stainless steel wrench samples. In 2024, on the International Space Station, the Metal3D project realized the space manufacturing of stainless steel wire materials under microgravity conditions. In the metal additive manufacturing process in the space environment, in addition to verifying the influence of microgravity conditions in the space environment on the control of the molten state of metal materials and the bonding of the base plate, it is also necessary to study the manufacturing process in a high vacuum environment. However, the verification of microgravity metal additive manufacturing technology completed at home and abroad has selected a gas environment or protective atmosphere similar to that on the ground, and there are still few reports on the verification of metal additive manufacturing processes in a vacuum environment.

[0004] To realize metal additive manufacturing in a space environment, it is necessary not only to solve problems such as the control of metal droplets under microgravity conditions, but also to consider the characteristics of metal droplets in a vacuum environment and the difficulty of forming. On the one hand, in a vacuum environment, the saturated vapor pressure of the liquid decreases, and the vaporization phenomenon is more obvious than in a normal pressure environment, which leads to more problems such as droplet splashing; on the other hand, during the forming process, there will be great problems with the heat dissipation of metal droplets. In normal pressure or a protective atmosphere, the heat dissipation method is convection, and the heat dissipation efficiency is several orders of magnitude higher than that of thermal radiation in a vacuum environment. During the manufacturing process in a vacuum environment, as heat accumulates, the new print layer will not solidify and will affect the original print layer.

[0005] In order to realize metal additive manufacturing in space environment, especially in microgravity and vacuum composite environment, it is considered to use low-power manufacturing process from the root. It not only reduces energy consumption and greatly reduces the restrictions on energy in space environment, but also has higher viscosity of metal droplets under low power consumption, which reduces the dependence of droplet solidification and bonding on gravity conditions.

[0006] Therefore, based on the above problems, how to provide a low-power metal additive manufacturing device that can be used in space microgravity and vacuum environments has become an important technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0007] In order to solve the technical problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a metal laser fuse additive manufacturing device based on microgravity and vacuum conditions, which overcomes the high power consumption of the existing metal additive manufacturing technology and the problem that it cannot be directly applied to the space environment;

[0008] To achieve the above-mentioned purpose, the present invention provides a metal laser fuse additive manufacturing device based on microgravity and vacuum conditions, comprising:

[0009] Controller module;

[0010] Mechanical and motion modules for driving and controlling the transmission of amorphous alloy rods;

[0011] The mechanical and motion module includes a device housing with a multi-layer chamber formed therein, and a feeding mechanism and a bottom plate motion mechanism installed at the bottom of the chamber under the device housing;

[0012] The feeding mechanism is provided with a discharge port at one end, and the bottom plate movement mechanism is provided with a bottom plate capable of biaxial linkage along the X-axis and the Y-axis corresponding to the discharge port; and a laser module is installed at the top of the lower chamber of the device housing corresponding to the top of the bottom plate movement mechanism, and the laser module, the feeding mechanism and the bottom plate movement mechanism are all connected to the controller module circuit;

[0013] In the working state, the amorphous alloy rod is first softened under the action of the laser of the laser module, and is driven to contact the base plate through the feeding mechanism. With subsequent heating, the amorphous alloy is further softened, and the movement of the base plate is adjusted and naturally cooled, so that the amorphous alloy is bonded to the base plate, thereby metal forming.

[0014] Furthermore, the device housing includes two chambers, and the two chambers are arranged vertically.

[0015] Furthermore, the device housing comprises a lower plate, a middle plate and an upper plate which are sequentially arranged from bottom to top; and

[0016] A lower side plate which is combined with the lower plate and the middle plate to form the lower chamber; and

[0017] An upper side plate that is combined with the middle plate and the upper plate to form an upper chamber;

[0018] The feeding mechanism and the bottom plate movement mechanism are mounted on the lower plate.

[0019] Furthermore, a material transfer path extending obliquely downward is formed on the upper side of the feeding mechanism, and the feeding mechanism is provided with the discharge port at the bottom end of the material transfer path.

[0020] Further, the feeding mechanism includes a base plate fixedly connected with a vacuum motor;

[0021] The substrate is formed with the material transfer path on the side away from the vacuum motor;

[0022] The substrate is located on one side of the material transfer path and is provided with a motor transmission gear connected to the power output shaft of the vacuum motor, and on the other side is provided with a surrounding guide groove that cooperates with the motor transmission gear to fix the amorphous alloy rod. The discharge port is formed at one end of the substrate, and a group of driven guide grooves are formed at the other end to assist in fixing the amorphous alloy rod.

[0023] Furthermore, the base plate motion mechanism is a motion platform composed of a dual-axis motion motor.

[0024] Furthermore, the laser module includes a pump source and a collimator;

[0025] The pump spectrum source outputs laser light, which is collimated and calibrated by the collimator mirror and then acts on the bottom plate to melt and shape the amorphous alloy material.

[0026] Furthermore, a thermal control and monitoring module for measuring environmental parameters and images and video data of the test process, and a data acquisition module for monitoring the amorphous alloy forming process and recording data of the entire test cycle;

[0027] The data acquisition module is arranged in the lower chamber of the device shell on one side of the feeding mechanism, and the thermal control and monitoring module is installed in the upper chamber of the device shell. The thermal control and monitoring module and the data acquisition module are connected to the controller module circuit.

[0028] Further, the data acquisition module includes: a molten pool camera and a monitoring camera;

[0029] The molten pool camera is mounted on the lower plate of the device housing through a bracket, and the monitoring camera is mounted on the lower side of the middle plate of the device housing.

[0030] Further, the controller module and the thermal control and monitoring module are installed in the upper chamber of the device housing;

[0031] The controller module includes a primary main control board and a secondary control board;

[0032] The thermal control and monitoring module includes a storage tank, a liquid pump, a mounting bracket and a vacuum gauge.

[0033] In the above technical solution, the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions provided by the present invention has the following beneficial effects:

[0034] The metal laser fuse additive manufacturing device designed by the present invention based on microgravity and vacuum conditions utilizes a low-power metal additive manufacturing process to perform metal space manufacturing in a space environment to solve the problem that the existing metal manufacturing process cannot be applied in a space environment. Compared with the existing technology, it at least includes the following

[0035] Beneficial effects:

[0036] First, the additive manufacturing device uses amorphous alloy as the raw material for metal additive manufacturing, which reduces the power required for the melting molding heating process;

[0037] Secondly, the amorphous alloy laser melting technology is used to avoid the splashing of molten droplets in the conventional metal melting process under vacuum environment. In addition, the amorphous alloy passes through the viscous flow state of the supercooled liquid phase in the initial stage of laser action. The thrust of the feeding mechanism is used to make the amorphous alloy have a larger contact area with the base plate, which can achieve higher bonding strength.

[0038] In addition, the multi-module integrated structure of the additive manufacturing device can independently realize metal forming under vacuum and microgravity conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is an axonometric diagram of a metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed in the present invention;

[0041] Figure 2 It is a schematic diagram of the internal structure of the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed in the present invention;

[0042] Figure 3It is a schematic structural diagram of a feeding mechanism of a metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed in the present invention;

[0043] Figure 4 It is a schematic diagram of the structure of the bottom plate motion mechanism of the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed by the present invention;

[0044] Figure 5 It is a structural layout diagram of the lower layer of the middle plate in the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed by the present invention;

[0045] Figure 6 It is a layout diagram of the upper structure of the plate in the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed by the present invention;

[0046] Figure 7 It is a layout diagram of the upper structure of the plate in the microgravity and vacuum conditions metal laser fuse additive manufacturing device disclosed by the present invention from another perspective;

[0047] Figure 8 It is a schematic diagram of the lower plate structure of the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed in the present invention.

[0048] Description of reference numerals:

[0049] 1. Lower plate; 2. Middle plate; 3. Upper plate; 4. Lower side plate; 5. Upper side plate; 6. Amorphous alloy rod; 7. Motor transmission gear; 8. Vacuum motor; 9. Driven guide groove; 10. Driven guide groove; 11. Spring pressure plate; 12. Discharge port; 13. Driven wheel; 14. Print base plate; 15. Motor; 16. Motor; 17. Monitoring camera; 18. Collimator; 19. Pump spectrum source; 20. Bracket; 21. Molten pool camera; 22. Mounting bracket; 23. Secondary control board; 24. Primary main control board; 25. Secondary control board; 26. Optical fiber; 27. Optical fiber bracket; 28. Vacuum gauge; 29. ​​Storage tank; 30. Liquid pump; 31. Mounting bracket;

[0050] 100, lower chamber;

[0051] 200, upper chamber;

[0052] 300. Material transfer path. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the implementation of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0054] Figure 1 This is an axonometric diagram of a metal laser fuse additive manufacturing device based on microgravity and vacuum conditions;

[0055] Figure 2 This is a schematic diagram of the internal structure of the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions;

[0056] The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions disclosed in the present invention includes: a controller module;

[0057] A mechanical and motion module for driving and controlling the transmission of the amorphous alloy rod 6;

[0058] The mechanical and motion module includes a device housing with a multi-layer chamber formed inside, and a feeding mechanism and a bottom plate motion mechanism installed at the bottom of the chamber 100 under the device housing;

[0059] A discharge port 12 is provided at one end of the feeding mechanism, and a bottom plate 14 capable of biaxial linkage along the X-axis and the Y-axis is provided at a position corresponding to the discharge port 12 of the bottom plate movement mechanism; and

[0060] A laser module is installed at the top of the chamber 100 below the device housing, corresponding to the top of the bottom plate motion mechanism. The laser module, the feeding mechanism and the bottom plate motion mechanism are all connected to the controller module circuit.

[0061] In the working state, the amorphous alloy rod 6 is first softened under the action of the laser of the laser module, and is driven to contact with the base plate 14 through the feeding mechanism. With subsequent heating, the amorphous alloy is further softened, and the movement of the base plate 14 is adjusted and naturally cooled, so that the amorphous alloy and the base plate are bonded, thereby metal forming.

[0062] Specifically, the additive manufacturing device, which is based on metal laser fuse additive manufacturing under microgravity and vacuum conditions, realizes low-power additive manufacturing of metal materials. Conventional metal materials need to be heated to a molten state before they can be formed, and amorphous alloy materials are different from conventional metal materials in that they can be softened at a temperature far below their melting point. However, their viscosity is relatively large, making it difficult to achieve direct metal laser forming. The invention uses amorphous alloy as raw material, which is first softened after the action of the laser, and is driven to contact the base plate 14 through a feeding mechanism. With subsequent heating, the amorphous alloy can be further softened, and metal forming can be achieved by adjusting the movement of the base plate 14 and other materials and natural cooling. Since the amorphous alloy itself has a higher specific heat than conventional alloy materials, the heat absorbed by it when it enters the molten state is much smaller than that of conventional metal materials, thereby achieving low-power laser forming of metals.

[0063] See also Figure 1 , 2 As shown:

[0064] The device housing includes two chambers, and the two chambers are arranged vertically. Specifically, an upper chamber 200 is formed on the upper part of the lower chamber 100 .

[0065] The device housing comprises a lower plate 1, a middle plate 2 and an upper plate 3 which are sequentially arranged from bottom to top; and

[0066] The lower side plate 4, which is combined with the lower plate 1 and the middle plate 2 to form the lower chamber 100; and

[0067] An upper side plate 5 that is combined with the middle plate 2 and the upper plate 3 to form an upper chamber 200;

[0068] The lower plate 1 is provided with a feeding mechanism and a bottom plate movement mechanism.

[0069] Figure 3 This is a schematic diagram of the feeding mechanism structure of the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions:

[0070] A material transfer path 300 extending obliquely downward is formed on the upper side of the feeding mechanism. The feeding mechanism can provide a feeding thrust obliquely along the material transfer path 300 . A discharge port 12 is formed at the bottom end of the material transfer path 300 .

[0071] Preferably, the feeding mechanism comprises a base plate to which a vacuum motor 8 is fixedly connected;

[0072] A material transfer path 300 is formed on the substrate away from the vacuum motor;

[0073] The substrate is located on one side of the material transfer path 300 and is provided with a motor transmission gear 7 connected to the power output shaft of the vacuum motor 8, and on the other side is provided with a surrounding guide groove that cooperates with the motor transmission gear 7 to fix the amorphous alloy rod 6. A discharge port 12 is formed at one end of the substrate, and a group of driven guide grooves are formed at the other end to assist in fixing the amorphous alloy rod 6; the guide groove is arranged on the guide wheel on the substrate.

[0074] A spring pressing plate 11 is installed at the bottom of the substrate. The spring pressing plate 11 is installed with a spring. The spring is in a compressive stress state in a free state. The left and right sides of the spring are perpendicular to the substrate surface and connected to the spring. Figure 3 As shown, the two side plates, the left side plate connected to the triangular slider and the right side plate of the spring pressure plate 11) are subjected to force in the direction of outward along the center line of the spring spiral. The purpose of this structure is to ensure that the raw materials in the material transmission path 300 will not shake under the pressure of the gear 7 and the driven wheel 13 below it in a natural state, and on the other hand, it can facilitate the feeding of raw material bars. The principle of the latter is: by pressing the left side plate connected to the spring inward, the triangular slider connected to it is driven to move, and the driven wheel 13 below the gear 7 moves downward, and the distance between it and the gear 7 becomes larger, making it easier to insert the raw materials along the material transmission path 300. After the raw materials are pushed in, the left side plate is released, and the position of the driven wheel 13 below the gear 7 is restored, and together with the gear 7, the raw materials in the material transmission path 300 are constrained to prevent sliding and shaking.

[0075] During operation, one end of the amorphous alloy rod 6 is fixed by the driven guide groove 9 and one end of the driven guide groove 10, and the other end is fixed by the transmission gear 7 in cooperation with the surrounding guide grooves. By starting the vacuum motor 8, the transmission gear 7 is driven to move, and the amorphous alloy rod 6 is driven to move through the friction force, and then is discharged from the discharge port 12;

[0076] Figure 4 This is a schematic diagram of the base plate motion mechanism structure of the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions;

[0077] Figure 8 This is a schematic diagram of the lower plate structure of the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions;

[0078] Preferably, the base plate motion mechanism is a motion platform composed of a dual-axis motion motor;

[0079] Specifically, the bottom plate motion mechanism includes a printing bottom plate 14 and two motors, wherein the motor 16 is an X-axis driving motor, and the motor 15 is a Y-axis driving motor. The printing bottom plate 14 realizes X-axis and Y-axis motion by driving the operation of the dual-axis motors. The bottom plate motion mechanism is integrally mounted on the lower plate 1.

[0080] Figure 5 This is the layout diagram of the lower structure of the middle plate in the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions;

[0081] Figure 6 This is the layout diagram of the upper structure of the plate in the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions;

[0082] Preferably, the additive manufacturing device further comprises: a thermal control and monitoring module and a data acquisition module;

[0083] Among them, the thermal control and monitoring module is used to measure environmental parameters and provide heat dissipation for each module of the experimental device;

[0084] The data acquisition module is used to monitor the forming process of amorphous alloys and record image and video data of the entire test cycle;

[0085] A data acquisition module is arranged in the lower chamber 100 of the device housing on one side of the feeding mechanism, and a thermal control and monitoring module is installed in the upper chamber 200 of the device housing. The thermal control and monitoring module and the data acquisition module are connected to the controller module circuit.

[0086] Specifically, the thermal control monitoring module provides water cooling for the laser of the laser module and the controller module, and monitors the vacuum degree of the chamber at the same time.

[0087] The additive manufacturing device mainly involves two aspects of data, including environmental parameters measured by the thermal control and monitoring module, and images and video data of the test process recorded by the data and detection module. Both parts of data are transmitted to the controller module for storage.

[0088] Preferably, the data acquisition module includes: a molten pool camera 21 and a monitoring camera 17 , the molten pool camera 21 is installed on the lower plate 1 through a bracket 20 , and the monitoring camera 17 is installed on the lower side of the middle plate 2 .

[0089] Preferably, the laser module includes a pump source 19 and a collimator 18 . The pump source 19 outputs laser light, which is collimated and calibrated by the collimator 11 and then acts on the bottom plate 14 to melt and shape the amorphous alloy material.

[0090] Specifically, the laser module is installed on the lower side of the middle plate 2, see Figure 5 As shown, the collimator 11 is mounted on the upper side of the middle plate 2, and the optical fiber 26 is fixed on the upper side of the middle plate 2 through the optical fiber bracket 27;

[0091] The molten pool camera 21 is installed on the lower plate 1 through the bracket 20, and the monitoring camera 17 is installed on the lower side of the middle plate 2. The molten pool camera 21 observes the laser melting area and filters out the laser strong light through the filter set in the device, so as to monitor the process of amorphous alloy forming. The monitoring light camera 17 monitors the entire area of ​​the bottom plate and records data of the whole test cycle and other processes;

[0092] Figure 6 Another perspective layout diagram of the plate superstructure in the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions;

[0093] See also Figure 5 , 6 As shown:

[0094] The controller module and the thermal control and monitoring module are mounted in the upper chamber 200 of the device housing;

[0095] The controller module includes a primary main control board 24 and a secondary control board. Specifically, the primary main control board 24 is mounted on the middle board 2, and the secondary control boards 23 and 25 are mounted on the middle board 2 through a bracket 22;

[0096] The thermal control and monitoring module includes a storage tank 29, a liquid pump 30, a mounting bracket 31 and a vacuum gauge 28. The storage tank 29 is suspended at the lower part of the upper plate 3 by the mounting bracket 31. The storage tank 29 is installed with a liquid pump 30 away from the mounting bracket 31, and the vacuum gauge 28 is installed on the middle plate 2.

[0097] In the above technical scheme, the metal laser fuse additive manufacturing device based on microgravity and vacuum conditions provided by the present invention utilizes a low-power metal additive manufacturing process to perform metal space manufacturing in a space environment to solve the problem that the existing metal manufacturing process cannot be applied in a space environment, thereby realizing low-power metal laser forming in space microgravity and vacuum environments.

[0098] The above description is only an illustrative embodiment of the present application and is not intended to limit the scope of the present application. Any equivalent changes, modifications and combinations made by any technician in the field without departing from the concept and principle of the present application shall fall within the scope of protection of the present application.

Claims

1. A metal laser fuse additive manufacturing device based on microgravity and vacuum conditions, characterized in that: include: Controller module; A mechanical and motion module for driving and controlling the transmission of an amorphous alloy rod (6); The mechanical and motion module comprises a device housing with a multi-layer chamber formed therein, and a feeding mechanism and a bottom plate motion mechanism installed at the bottom of the chamber (100) below the device housing; A discharge port (12) is provided at one end of the feeding mechanism, and a bottom plate (14) capable of biaxial linkage along the X-axis and the Y-axis is provided at a position of the bottom plate movement mechanism corresponding to the discharge port (12); and a laser module is installed at the top of the chamber (100) below the housing of the device corresponding to the top of the bottom plate movement mechanism, and the laser module, the feeding mechanism and the bottom plate movement mechanism are all connected to the controller module circuit; In the working state, the amorphous alloy rod (6) is first softened under the action of the laser of the laser module, and is driven by the feeding mechanism to contact the base plate (14). With subsequent heating, the amorphous alloy is further softened, and the movement of the base plate (14) is adjusted and naturally cooled, so that the amorphous alloy is bonded to the base plate, thereby realizing metal forming.

2. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 1, characterized in that: The device shell includes two chambers inside, and the two chambers are arranged vertically.

3. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 2, characterized in that: The device housing comprises a lower plate (1), a middle plate (2) and an upper plate (3) which are sequentially arranged from bottom to top; and A lower side plate (4) which, together with the lower plate (1) and the middle plate (2), forms the lower chamber (100); and further comprising An upper side plate (5) which, together with the middle plate (2) and the upper plate (3), forms an upper chamber (200); The lower plate (1) is provided with the feeding mechanism and the bottom plate movement mechanism.

4. A metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 1 or 3, It is characterized by: A material transfer path (300) extending obliquely downward is formed on the upper side of the material feeding mechanism, and the material feeding mechanism is provided with the material discharge port (12) at the bottom end of the material transfer path (300).

5. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 4, It is characterized by: The feeding mechanism comprises a base plate fixedly connected with a vacuum motor (8); The substrate is formed with the material transfer path (300) on the side away from the vacuum motor; The substrate is located on one side of the material transfer path (300) and is provided with a motor transmission gear (7) connected to the power output shaft of the vacuum motor (8), and on the other side is provided with a peripheral guide groove that cooperates with the motor transmission gear (7) to fix the amorphous alloy rod (6). The discharge port (12) is formed at one end of the substrate, and a group of driven guide grooves that assist in fixing the amorphous alloy rod (6) are formed at the other end.

6. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 1 or 3, characterized in that ； The bottom plate motion mechanism is a motion platform composed of a dual-axis motion motor.

7. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 1, characterized in that: The laser module comprises a pump source (19) and a collimator (18); The pump spectrum source (19) outputs laser light, which is collimated and calibrated by the collimator (11) and then acts on the bottom plate (14) to melt and shape the amorphous alloy material.

8. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 2 is characterized in that: Also includes: A thermal control and monitoring module for measuring environmental parameters and providing heat dissipation for each module, and a data acquisition module for monitoring the amorphous alloy forming process and recording image / video data of the entire test cycle; The data acquisition module is arranged in the lower chamber (100) of the device housing on one side of the feeding mechanism, and a thermal control and monitoring module is installed in the upper chamber (200) of the device housing. The thermal control and monitoring module and the data acquisition module are connected to the controller module circuit.

9. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 8, characterized in that: The data acquisition module comprises: a molten pool camera (21) and a monitoring camera (17); The molten pool camera (21) is mounted on the lower plate (1) of the device housing via a bracket (20), and the monitoring camera (17) is mounted on the lower side of the middle plate (2) of the device housing.

10. The metal laser fuse additive manufacturing device based on microgravity and vacuum conditions according to claim 8, characterized in that: The controller module and the thermal control and monitoring module are installed in the upper chamber (200) of the device housing; The controller module includes a primary main control board (24) and a secondary control board; The thermal control and monitoring module comprises a storage tank (29), a liquid pump (30), a mounting bracket (31) and a vacuum gauge (28).

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