Detachable modular additive manufacturing substrate and method of use and target manufactured part

Abstract

The present application relates to the technical field of additive manufacturing, and discloses a detachable modular additive manufacturing substrate, an application method thereof and a target manufactured product. The method comprises the following steps: determining a plurality of additive manufacturing substrates according to a first target requirement, and splicing the plurality of additive manufacturing substrates into a first composite substrate according to the first target requirement; implementing an additive manufacturing process on a preset area of the first composite substrate to obtain a first manufactured product; splitting each first manufactured product according to the detachable characteristic of the additive manufacturing substrate to obtain a plurality of separated first manufactured products, implementing a non-additive manufacturing process on the separated first manufactured products to obtain a plurality of intermediate manufactured products, and assembling the plurality of intermediate manufactured products and other additive manufacturing substrates on the intermediate manufactured products based on the splicable characteristic of the additive manufacturing substrate and a second target requirement to obtain a second manufactured product; and implementing an additive manufacturing process on the second manufactured product to obtain a target manufactured product.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of additive manufacturing technology, in particular to an application method of a detachable modular additive manufacturing substrate, a detachable modular additive manufacturing substrate, a target manufacturing part and an additive manufacturing device. BACKGROUND

[0002] At present, in the traditional additive manufacturing technology, the fixed substrate used has large size and heavy weight, and is difficult to install / dismantle, which leads to the difficulty of multiple composite of additive manufacturing and other processes. Especially for the powder bed completely covering the entire forming cavity corresponding to the height of the formed component, the composite additive manufacturing process needs to complete multiple cycles of the process of "additive-other process-additive-other process", which involves multiple installation and disassembly and correction leveling of the substrate between multiple process equipment. Therefore, the current developed composite manufacturing process is based on the powder / solid wire type metal additive manufacturing process without leveling and powder bed coverage requirements of the substrate. At the same time, the traditional powder type additive manufacturing substrate is designed and reformed, and according to the shape of the manufactured part, the additive manufacturing substrate is designed flexibly using mortise and tenon structure, which not only reduces the use cost and manufacturing period of large area powder type additive manufacturing substrate, but also further improves the feasibility of powder type composite additive manufacturing.

[0003] The powder type additive manufacturing substrate is reformed and designed, for example, the traditional substrate is reformed and divided into a first substrate (forming cabin connecting part) and a second substrate (additive manufacturing area), and each time the printing is performed, only the second substrate is disassembled, replaced and leveled, which greatly improves the disassembly convenience of the substrate and reduces the use cost. However, these improvements still cannot solve the problem of correction leveling and powder bed completely covering the formed component caused by multiple installation / dismantling of the substrate in the multiple composite process of powder type additive manufacturing and other processes. Therefore, in order to realize powder type composite additive manufacturing, a new type of substrate needs to be developed for powder type composite additive manufacturing technology. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application proposes an application method of a detachable modular additive manufacturing substrate, through the free matching between additive manufacturing substrates, various additive manufacturing substrates can be combined into a complete composite substrate, and the free adjustment in vertical height and the flexible design in horizontal direction of the composite substrate can be realized, which effectively solves the problem of multiple composite of metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring processes caused by the large size, heavy weight, height adjustment difficulty and difficult disassembly-reinstallation of the substrate used in the traditional additive manufacturing, and helps to realize metal composite additive manufacturing and additive manufacturing online monitoring process, and improves the efficiency of metal composite additive manufacturing.

[0005] The application provides an application method of a detachable modular additive manufacturing substrate, which comprises the following steps: determining a plurality of additive manufacturing substrates according to a first target requirement, and splicing the plurality of additive manufacturing substrates into a first composite substrate according to the first target requirement; implementing an additive manufacturing process in a preset area of the first composite substrate to obtain a first manufacturing piece; wherein the first manufacturing piece comprises the first composite substrate and a first additive manufacturing piece formed on the first composite substrate, and the first manufacturing piece is an integrated structure of the first composite substrate and the first additive manufacturing piece; each first manufacturing piece is split according to the detachable characteristic of the additive manufacturing substrate to obtain a plurality of separated first manufacturing pieces, a non-additive manufacturing process is implemented on the separated first manufacturing pieces to obtain a plurality of intermediate manufacturing pieces, and the plurality of intermediate manufacturing pieces are spliced and other additive manufacturing substrates are spliced on the intermediate manufacturing pieces to perform leveling processing based on the splicable characteristic of the additive manufacturing substrate and a second target requirement, so that a second manufacturing piece is obtained; wherein the number of additive manufacturing substrates required by the second target requirement is different from the number of additive manufacturing substrates required by the first target requirement; and an additive manufacturing process is implemented on the second manufacturing piece to obtain a target manufacturing piece.

[0006] In addition, the application method of the detachable modular additive manufacturing substrate according to the above-mentioned embodiments of the application can also have the following additional technical features:

[0007] According to some embodiments of the application, splicing the plurality of additive manufacturing substrates into the first composite substrate according to the first target requirement comprises: matching the first tenon structure of the additive manufacturing substrate with the first mortise structure of other additive manufacturing substrates in the first direction to obtain the first composite substrate; wherein the first direction is parallel to an operation table surface on which the additive manufacturing process is implemented.

[0008] According to some embodiments of the application, splicing other additive manufacturing substrates on the intermediate manufacturing piece to perform leveling processing to obtain the second manufacturing piece comprises: matching the first tenon structure of the additive manufacturing substrate of the intermediate manufacturing piece with the first mortise structure of other additive manufacturing substrates in the first direction, and matching the second tenon structure of the additive manufacturing substrate of the intermediate manufacturing piece with the second mortise structure of other additive manufacturing substrates in the second direction to obtain the second manufacturing piece; wherein the second direction is perpendicular to the operation table surface on which the additive manufacturing process is implemented.

[0009] According to some embodiments of the application, the method further comprises: adjusting the number and size of other additive manufacturing substrates according to the size difference of all intermediate manufacturing pieces in the horizontal direction and the vertical direction, so that all second manufacturing pieces after leveling processing are in the same horizontal plane.

[0010] According to the application method of the detachable modular additive manufacturing substrate, a plurality of additive manufacturing substrates are determined according to a first target requirement, and the plurality of additive manufacturing substrates are spliced into a first composite substrate according to the first target requirement; an additive manufacturing process is implemented in a preset area of the first composite substrate to obtain a first manufacturing piece; wherein the first manufacturing piece includes the first composite substrate and a first additive manufacturing piece formed on the first composite substrate, and the first manufacturing piece is an integrated structure of the first composite substrate and the first additive manufacturing piece; each first manufacturing piece is split according to the detachable characteristic of the additive manufacturing substrate to obtain a plurality of separated first manufacturing pieces, a non-additive manufacturing process is implemented on the separated first manufacturing pieces to obtain a plurality of intermediate manufacturing pieces, and the plurality of intermediate manufacturing pieces are assembled based on the splicable characteristic of the additive manufacturing substrate and a second target requirement, and other additive manufacturing substrates are assembled on the intermediate manufacturing pieces for leveling processing to obtain a second manufacturing piece; wherein the number of additive manufacturing substrates required by the second target requirement is different from the number of additive manufacturing substrates required by the first target requirement; and an additive manufacturing process is implemented on the second manufacturing piece to obtain a target manufacturing piece. Thus, the present method can freely match the additive manufacturing substrates, and various additive manufacturing substrates can be combined into a complete composite substrate, and the composite substrate can be freely adjusted in vertical height and flexibly designed in horizontal direction, effectively solving the problem of multiple composite of metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring processes caused by the large size, heavy weight, and unadjustable height of the substrate used in traditional additive manufacturing, and the difficulty of disassembly and reinstallation, and helping to realize metal composite additive manufacturing and additive manufacturing online monitoring process, and improving the efficiency of metal composite additive manufacturing.

[0011] The present application also provides a detachable modular additive manufacturing substrate, which can freely match the additive manufacturing substrates, and various additive manufacturing substrates can be combined into a complete composite substrate, and the composite substrate can be freely adjusted in vertical height and flexibly designed in horizontal direction, effectively solving the problem of multiple composite of metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring processes caused by the large size, heavy weight, and unadjustable height of the substrate used in traditional additive manufacturing, and the difficulty of disassembly and reinstallation, and helping to realize metal composite additive manufacturing and additive manufacturing online monitoring process, and improving the efficiency of metal composite additive manufacturing.

[0012] The present application also provides a detachable modular additive manufacturing substrate, which includes: the additive manufacturing substrate is provided with a first tenon structure and a first mortise structure, and the first tenon structure of the additive manufacturing substrate and the first mortise structure of other additive manufacturing substrates are matched with each other in a first direction to connect the additive manufacturing substrate and the other additive manufacturing substrates.

[0013] According to some embodiments of the present application, the additive manufacturing substrate is further provided with a second tenon structure and a second mortise structure, the second tenon structure of the additive manufacturing substrate is matched with the second mortise structure of another additive manufacturing substrate in a second direction to connect the additive manufacturing substrate and the other additive manufacturing substrate.

[0014] According to some embodiments of the present application, the additive manufacturing substrate comprises at least one of a fan shape, a circle shape, a triangle shape, a rectangle shape or a trapezoid shape.

[0015] According to some embodiments of the present application, the detachable modular additive manufacturing substrate further comprises an auxiliary substrate, the auxiliary substrate is provided with a first auxiliary tenon structure and a first auxiliary mortise structure, the first auxiliary tenon structure of the auxiliary substrate is matched with the first auxiliary mortise structure of another auxiliary substrate in a first direction to connect the auxiliary substrate and the other auxiliary substrate, the auxiliary substrate is further provided with a second auxiliary tenon structure and a second auxiliary mortise structure, the second auxiliary tenon structure of the auxiliary substrate is matched with the second auxiliary mortise structure of another auxiliary substrate in a second direction to connect the auxiliary substrate and the other auxiliary substrate; the additive manufacturing substrate is sleeved in the auxiliary substrate, and the additive manufacturing substrate and the auxiliary additive manufacturing substrate are detachably connected.

[0016] According to the detachable modular additive manufacturing substrate of the present application, the additive manufacturing substrate is provided with a first tenon structure and a first mortise structure, the first tenon structure of the additive manufacturing substrate is matched with the first mortise structure of another additive manufacturing substrate in a first direction to connect the additive manufacturing substrate and the other additive manufacturing substrate. Thus, the present substrate can be combined into a complete composite substrate by the free matching between the additive manufacturing substrates, and the free adjustment in vertical height and the flexible design in horizontal direction of the composite substrate can be realized, thereby effectively solving the problem of multiple composite of metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring processes caused by the large size, heavy weight, unadjustable height and difficult disassembly-reassembly of the substrate used in the traditional additive manufacturing, and helping to realize the metal composite additive manufacturing and the online monitoring process of the additive manufacturing, and improving the efficiency of the metal composite additive manufacturing.

[0017] To achieve the above object, the present application further provides a target manufacturing piece obtained by the application method of the detachable modular additive manufacturing substrate.

[0018] The target manufacturing piece according to the embodiment of the present application can be obtained by the application method of the detachable modular additive manufacturing substrate, the various additive manufacturing substrates can be combined into a complete composite substrate through the free matching between the additive manufacturing substrates, and the free adjustment in the vertical height and the flexible design in the horizontal direction of the composite substrate can be realized, the problem that the metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring and other multi-processes are repeatedly combined due to the large size, heavy weight and unadjustable height of the substrate used in the traditional additive manufacturing and the difficulty in disassembly and reinstallation is effectively solved, and the metal composite additive manufacturing and the additive manufacturing online monitoring process can be realized, and the efficiency of the metal composite additive manufacturing is improved.

[0019] The present application further provides an additive manufacturing device comprising the detachable modular additive manufacturing substrate.

[0020] The additive manufacturing device according to the embodiment of the present application comprises the detachable modular additive manufacturing substrate, the various additive manufacturing substrates can be combined into a complete composite substrate through the free matching between the additive manufacturing substrates, and the free adjustment in the vertical height and the flexible design in the horizontal direction of the composite substrate can be realized, the problem that the metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring and other multi-processes are repeatedly combined due to the large size, heavy weight and unadjustable height of the substrate used in the traditional additive manufacturing and the difficulty in disassembly and reinstallation is effectively solved, and the metal composite additive manufacturing and the additive manufacturing online monitoring process can be realized, and the efficiency of the metal composite additive manufacturing is improved.

[0021] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A flowchart of the application method of the detachable modular additive manufacturing substrate according to some embodiments of the present application;

[0023] Figure 2 A schematic diagram of a square additive manufacturing substrate according to some embodiments of the present application;

[0024] Figure 3 A schematic diagram of being spliced into a first composite substrate according to some embodiments of the present application;

[0025] Figure 4 A schematic diagram of obtaining a first manufacturing piece according to some embodiments of the present application;

[0026] Figure 5 A schematic diagram of obtaining a target manufacturing piece according to some embodiments of the present application;

[0027] Figure 6 Schematic view of a composite substrate according to some embodiments of the application;

[0028] Figure 7 Schematic view of a square additive manufacturing substrate having different types of vertical tiled modules according to some embodiments of the application;

[0029] Figure 8 Schematic view of a fan, rectangle, triangle and trapezoid additive manufacturing substrates according to some embodiments of the application;

[0030] Figure 9 Schematic view of a C and W shaped additive manufacturing substrates according to some embodiments of the application;

[0031] Figure 10 Schematic view of a composite substrate composed of additive manufacturing substrates of multiple different types of horizontal tiled modules according to some embodiments of the application;

[0032] Figure 11 Schematic view of a composite substrate composed of additive manufacturing substrates of multiple shapes and sizes according to some embodiments of the application;

[0033] Figure 12 Block schematic view of an additive manufacturing apparatus according to some embodiments of the application.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 1 - first tenon structure, 2 - additive manufacturing module of an additive manufacturing substrate, 3 - first mortise structure, 4 - second mortise structure, 5 - second tenon structure and 6 - target manufactured piece. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to specific embodiments and with reference to the drawings.

[0037] It should be noted that the technical terms or scientific terms used in the embodiments of the present application should be understood as the general meaning understood by those skilled in the art of the present application unless otherwise defined. The terms "first", "second" and the like used in the embodiments of the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and the like mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and the like are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] The core of additive manufacturing technology is to build three-dimensional entities by layer-by-layer accumulation of powder or wire, which provides the possibility for rapid manufacturing of complex metal parts, and thus shows great application potential in the fields of aerospace, biomedicine, etc. At the same time, additive manufacturing technology not only can manufacture complex part structures with high precision and efficiency, but also has the potential to improve the performance and quality of products. However, metallurgical defects (pores, inclusions, incomplete fusion, residual stress, cracks, etc.) are prone to occur in the parts produced by additive manufacturing, which seriously affects the performance of the parts, and thus reduces the fatigue life of the additive manufacturing parts, making it difficult to meet the stringent performance requirements in the fields of aerospace, biomedicine, etc.

[0039] Therefore, the combination of additive manufacturing with other manufacturing / processing / heat treatment / monitoring processes has become the current development trend. For example, the combination of additive and subtractive manufacturing based on machining can effectively utilize the freedom of additive manufacturing to build complex-shaped parts, and at the same time improve the precision and surface finish of the parts through machining to reduce the post-processing process. In addition, the currently widely used composite manufacturing technologies include laser-assisted composite additive manufacturing, rolling-based composite additive manufacturing and shot-blasting-based composite additive manufacturing. These composite manufacturing technologies combine the advantages of traditional manufacturing processes in performance control and dimensional accuracy, which not only can provide new solutions for suppressing metallurgical defects caused by additive manufacturing, but also can reconstruct the residual stress distribution of additive manufacturing components, and improve the mechanical properties and fatigue life of the parts.

[0040] As described in the background section, in conventional additive manufacturing technology, the fixed substrate has large size and heavy weight, and is difficult to install and remove, which makes it extremely difficult to compound the additive manufacturing with other processes multiple times. Especially for the powder bed completely covering the entire forming cavity corresponding to the height of the shaped component in the powder laying type additive manufacturing process, the composite additive manufacturing technology needs to complete multiple cycles of the process of "additive - other process - additive - other process", which involves multiple installation, removal and correction leveling of the substrate between multiple process equipment. Therefore, the current developed composite manufacturing process is based on the powder / solid wire type metal additive manufacturing process without leveling and powder bed covering requirements for the substrate. At the same time, the substrate for the conventional powder feeding type additive manufacturing is redesigned, and the additive manufacturing substrate is designed flexibly according to the shape of the manufactured part using the mortise and tenon structure, which not only reduces the use cost and manufacturing cycle of the large area powder feeding type additive manufacturing substrate, but also further improves the feasibility of the powder feeding type composite additive manufacturing.

[0041] The applicant found in the process of implementing the present application that the powder laying type additive manufacturing substrate is redesigned, for example, the conventional substrate is redesigned into a first substrate (forming cabin connecting part) and a second substrate (additive manufacturing area), and only the second substrate is removed, replaced and leveled each time the printing is performed, which greatly improves the disassembly convenience of the substrate and reduces the use cost.

[0042] However, these improvements still cannot solve the problem of correction leveling and powder bed completely covering the shaped component caused by multiple installation / removal of the substrate in the process of multiple compounding of the powder laying type additive manufacturing with other processes. Therefore, in order to realize the powder laying type composite additive manufacturing, a new type of substrate needs to be developed for the powder laying type composite additive manufacturing technology.

[0043] The application method of the detachable modular additive manufacturing substrate, the detachable modular additive manufacturing substrate, the target manufactured part and the additive manufacturing device according to the embodiments of the present application are described below with reference to the accompanying drawings.

[0044] Reference Figure 1 The flowchart of the application method of the detachable modular additive manufacturing substrate according to some embodiments of the present application is shown in FIG. 1.

[0045] As Figure 1 shown, the application method of the detachable modular additive manufacturing substrate according to the embodiments of the present application can include the following steps:

[0046] S101, a plurality of additive manufacturing substrates are determined according to a first target requirement, and the plurality of additive manufacturing substrates are spliced into a first composite substrate according to the first target requirement.

[0047] Specifically, the shape, size and quantity of the additive manufacturing substrates are determined according to the first target requirements (such as the shape, size, etc. of the required composite substrate), wherein the first target requirements can be application requirements and layout requirements of additive manufacturing, and the quantity of the additive manufacturing substrates can be several. Then, the several additive manufacturing substrates are spliced into a first composite substrate according to the corresponding layout requirements, and the first composite substrate can be a single-layer structure.

[0048] S102, performing an additive manufacturing process on a preset area of the first composite substrate to obtain a first manufactured part; wherein the first manufactured part comprises the first composite substrate and a first additive manufactured part formed on the first composite substrate, and the first manufactured part is an integrated structure of the first composite substrate and the first additive manufactured part.

[0049] Specifically, after being spliced into the first composite substrate, the first composite substrate is installed into a metal additive manufacturing device, and an additive manufacturing process is performed on a preset area of the first composite substrate. After the additive manufacturing process is completed, a first manufactured part can be obtained, and a first additive manufactured part can be obtained on the preset area of the first composite substrate. The first manufactured part comprises the first composite substrate and the first additive manufactured part formed on the first composite substrate, and the first manufactured part is an integrated structure of the first composite substrate and the first additive manufactured part, wherein the height of each first additive manufactured part on the first composite substrate is the same.

[0050] The additive manufacturing technology is also known as 3D printing technology, which is a process of manufacturing three-dimensional objects by layering materials. This technology has wide applications in many fields, including aerospace, medical, automotive manufacturing, etc. In the additive manufacturing process, the substrate is the base plate on which the workpiece is attached, and the surface precision directly affects the quality of the printed workpiece. The substrate plays an important role in additive manufacturing, and it needs to have certain flatness and parallelism to ensure that the printing material can be uniformly laid. In traditional additive manufacturing processes, the separation and reuse of substrates is a technical challenge. For example, in traditional metal 3D printing processes, after printing is completed, the workpiece needs to be separated from the substrate, which usually involves complex post-processing steps such as wire cutting or mechanical processing, which not only consumes time but also may affect the precision and quality of the workpiece.

[0051] S103, according to the detachable characteristics of the additive manufacturing substrates, each first manufactured part is split to obtain several separated first manufactured parts, a non-additive manufacturing process is performed on the separated first manufactured parts to obtain several intermediate manufactured parts, and based on the splicable characteristics of the additive manufacturing substrates and the second target requirements, the several intermediate manufactured parts are assembled and other additive manufacturing substrates are assembled on the intermediate manufactured parts for leveling processing to obtain a second manufactured part; wherein the quantity of additive manufacturing substrates required by the second target requirements is different from the quantity of additive manufacturing substrates required by the first target requirements.

[0052] Specifically, after obtaining the first manufacturing pieces, the first manufacturing pieces are split according to the detachable characteristics of the additive manufacturing substrate to obtain separated first manufacturing pieces, and the separated first manufacturing pieces are subjected to a non-additive manufacturing process according to application requirements, so as to obtain intermediate manufacturing pieces, and the intermediate manufacturing pieces are assembled based on the splicing characteristics of the additive manufacturing substrate and second target requirements, and other additive manufacturing substrates are assembled on the intermediate manufacturing pieces for leveling processing, so as to obtain second manufacturing pieces, which can be a multi-layer structure (i.e., at least two additive manufacturing substrates are stacked together), wherein the number of additive manufacturing substrates required by the second target requirement is different from the number of additive manufacturing substrates required by the first target requirement. The non-additive manufacturing process can be other manufacturing / processing / heat treatment / monitoring process, etc. After the first manufacturing pieces are subjected to the non-additive manufacturing process, the second manufacturing pieces can be obtained. The shape and size of the corresponding printing piece substrate are adjusted according to the requirements of the additive manufacturing task, which effectively reduces the installation and disassembly difficulty of the metal substrate, improves the efficiency of in-situ composite additive manufacturing post-processing, increases the designability of the substrate, and reduces the use cost of the substrate.

[0053] S104, the second manufacturing piece is subjected to an additive manufacturing process to obtain a target manufacturing piece.

[0054] Specifically, after obtaining the intermediate manufacturing pieces, the number and size of the additive manufacturing substrates are adjusted according to the size difference of the intermediate manufacturing pieces in the horizontal direction and the vertical direction, so that the second manufacturing pieces after combination and assembly are in the same horizontal plane. Then, the second manufacturing pieces are installed into the metal additive manufacturing equipment again, and the additive manufacturing process is implemented based on the second manufacturing pieces after leveling processing, and the steps after the additive manufacturing process are repeated until the target manufacturing piece is obtained. Thus, through the free cooperation between the additive manufacturing substrates, various additive manufacturing substrates can be combined into a complete composite substrate, and the free adjustment in vertical height and the flexible design in the horizontal direction of the composite substrate can be realized, which effectively solves the problem of multiple composite of metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring processes multiple times due to the large size, heavy weight, and unadjustable height of the substrate used in traditional additive manufacturing, and helps to realize metal composite additive manufacturing and additive manufacturing online monitoring process, and improves the efficiency of metal composite additive manufacturing.

[0055] As a specific embodiment, refer to Figure 2 , a schematic diagram of a square additive manufacturing substrate according to some embodiments of the present application, according to the first target requirement, 16 square base substrates with a size of 20x20x2mm 3 are selected. The square base substrates are assembled in the horizontal direction using concave-convex groove gap cooperation, and in the vertical direction using four-corner buckles to ensure the horizontal surface of the substrate.Figure 3 As a schematic diagram of splicing the first composite substrate according to some embodiments of the present application, the square basic substrates are spliced into the first composite substrate according to the corresponding layout requirements and installed in the laser selective melting forming equipment. Referring to Figure 4 As a schematic diagram of obtaining the first manufactured piece according to some embodiments of the present application, the laser selective melting forming manufactured pieces with heights of 2 mm, 4 mm, 6 mm and 8 mm respectively are formed by laser selective melting. The first composite substrate is disassembled into various basic substrates from the laser selective melting forming equipment, and the manufactured pieces on the various basic substrates are subjected to laser shock peening treatment with different parameters according to application requirements. Referring to Figure 5 As a schematic diagram of obtaining the target manufactured piece according to some embodiments of the present application, the basic substrates after laser shock peening treatment are adjusted in the number of basic substrates in the vertical direction, that is, 3, 2, 1 and 0 basic substrates are added to the manufactured pieces with heights of 2 mm, 4 mm, 6 mm and 8 mm respectively, so that the manufactured pieces on all the basic substrates are in the same horizontal plane after splicing and combination in the horizontal direction. The combined second manufactured piece is reinstalled in the laser selective melting forming equipment and subjected to laser selective melting forming task again. The above steps are repeated until the target manufactured piece is obtained.

[0056] As a specific embodiment, according to the requirements of electron beam melting forming task, 4 small rectangular basic substrates, 8 small square basic substrates, 1 medium square basic substrate and 1 C-shaped basic substrate are selected. The selected basic substrates are spliced into the first composite substrate as shown in Figure 6 The first composite substrate is installed in the electron beam melting forming equipment and subjected to electron beam melting to form manufactured pieces with the same height. The first composite substrate is disassembled into various basic substrates from the electron beam melting forming equipment, and the manufactured piece parts on the various basic substrates are subjected to residual stress detection, vacuum carburizing and shot peening treatment with different parameters according to application requirements. Since the heights of the manufactured pieces formed by electron beam melting are the same, the number of basic substrates in the vertical direction does not need to be adjusted, and the basic substrates are directly combined into the second manufactured piece, which is reinstalled in the electron beam melting forming equipment and subjected to electron beam melting forming processing again. The above steps are repeated until the target manufactured piece is obtained.

[0057] Wherein, the residual stress refers to the stress existing in the material under no external load. This stress is usually caused by the manufacturing process (such as heat treatment, welding, machining, etc.) or the non-uniform properties of the material (such as phase transformation, plastic deformation, etc.). The existence of residual stress may affect the performance of the material, such as strength, toughness, dimensional stability, etc., and even may cause the generation and propagation of cracks, so the detection and control of residual stress are very important in many engineering applications. Vacuum carburizing is a heat treatment process that involves the penetration of carbon atoms into the surface of a metal in a vacuum environment to improve the surface hardness and wear resistance of the material. This process is often used to improve the performance of tools, molds and mechanical parts. Shot peening is a technique that involves spraying a stream of high-speed pellets onto the surface of a part to cause plastic deformation of the surface layer, thereby forming a certain thickness of the strengthening layer. This technique can significantly improve the fatigue strength and service life of the part, and improve the wear resistance and surface roughness of the mechanical part. Shot peening has been widely used in many fields, especially in the fields of aerospace, automobile manufacturing and mechanical parts.

[0058] In some embodiments of the present application, the first composite substrate is obtained by splicing several additive manufacturing substrates according to the first target requirement, including: matching the first tenon structure of the additive manufacturing substrate with the first mortise structure of the other additive manufacturing substrates in the first direction to obtain the first composite substrate; wherein the first direction is parallel to the operation table surface where the additive manufacturing process is performed.

[0059] Specifically, each additive manufacturing substrate includes a first tenon structure and a first mortise structure, and the first tenon structure of the additive manufacturing substrate is matched with the first mortise structure of the other additive manufacturing substrates in the first direction (horizontal direction) to connect the additive manufacturing substrate and the other additive manufacturing substrates, and obtain the first composite substrate. Wherein, the first direction is parallel to the operation table surface where the additive manufacturing process is performed.

[0060] In some embodiments of the present application, the other additive manufacturing substrates are assembled on the intermediate manufacturing piece for leveling processing to obtain a second manufacturing piece, including: matching the first tenon structure of the additive manufacturing substrate of the intermediate manufacturing piece with the first mortise structure of the other additive manufacturing substrates in the first direction, and matching the second tenon structure of the additive manufacturing substrate of the intermediate manufacturing piece with the second mortise structure of the other additive manufacturing substrates in the second direction to obtain the second manufacturing piece; wherein the second direction is perpendicular to the operation table surface where the additive manufacturing process is performed.

[0061] Specifically, since the first composite substrate is spliced by several additive manufacturing substrates, the first composite substrate can be split into several additive manufacturing substrates, and then the several additive manufacturing substrates are recombined, that is, the first tenon structure of the additive manufacturing substrate of the intermediate manufacturing piece is matched with the first mortise structure of the other additive manufacturing substrate in the first direction (horizontal direction), each additive manufacturing substrate includes a second tenon structure and a second mortise structure, and the second tenon structure of the additive manufacturing substrate of the intermediate manufacturing piece is matched with the second mortise structure of the other additive manufacturing substrate in the second direction (vertical direction) to connect the additive manufacturing substrate and the other additive manufacturing substrate, and obtain the second manufacturing piece. The second direction is perpendicular to the operation table surface on which the additive manufacturing process is implemented.

[0062] In some embodiments of the application, the method further comprises adjusting the number and size of the other additive manufacturing substrates according to the size difference of all intermediate manufacturing pieces in the horizontal direction and the vertical direction, so that all intermediate manufacturing pieces on all second manufacturing pieces after the leveling treatment are in the same horizontal plane.

[0063] Specifically, after obtaining the second manufacturing piece, the number and size of the other additive manufacturing substrates are adjusted according to the size difference of all intermediate manufacturing pieces in the horizontal direction (first direction) and the vertical direction (second direction), so that all intermediate manufacturing pieces on all second manufacturing pieces after the leveling treatment are in the same horizontal plane. The height of the second manufacturing piece is adjusted by the free combination of the additive manufacturing substrates, and the in-situ "additive-other process-additive-other process" cycle process is realized.

[0064] In summary, according to the application method of the detachable modular additive manufacturing substrate according to the embodiment of the present application, a plurality of additive manufacturing substrates are determined according to the first target requirement, and the plurality of additive manufacturing substrates are spliced into a first composite substrate according to the first target requirement; an additive manufacturing process is implemented in a preset area of the first composite substrate to obtain a first manufacturing piece; wherein the first manufacturing piece includes the first composite substrate and a first additive manufacturing piece formed on the first composite substrate, and the first manufacturing piece is an integrated structure of the first composite substrate and the first additive manufacturing piece; each first manufacturing piece is split according to the detachable characteristic of the additive manufacturing substrate to obtain a plurality of separated first manufacturing pieces, a non-additive manufacturing process is implemented on the separated first manufacturing pieces to obtain a plurality of intermediate manufacturing pieces, and based on the splicable characteristic of the additive manufacturing substrate and the second target requirement, the plurality of intermediate manufacturing pieces are assembled and other additive manufacturing substrates are assembled on the intermediate manufacturing pieces for leveling processing to obtain a second manufacturing piece; wherein the number of additive manufacturing substrates required by the second target requirement is different from the number of additive manufacturing substrates required by the first target requirement; an additive manufacturing process is implemented on the second manufacturing piece to obtain a target manufacturing piece. Thus, the present method can freely match the additive manufacturing substrates, and various additive manufacturing substrates can be combined into a complete composite substrate, and the composite substrate can be freely adjusted in vertical height and flexibly designed in horizontal direction, effectively solving the problem of multiple composite of metal additive manufacturing and other manufacturing / processing / heat treatment / monitoring processes caused by the large size, heavy weight, and unadjustable height of the substrate used in traditional additive manufacturing, and the difficulty of disassembly and reinstallation, and helping to realize metal composite additive manufacturing and online monitoring process of additive manufacturing, and improving the efficiency of metal composite additive manufacturing.

[0065] It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than the order described above and still achieve desirable results. In addition, the processes depicted in the figures do not necessarily require the particular order shown or sequential order to achieve the desired results. In certain implementations, multitasking and parallel processing can be advantageous.

[0066] Corresponding to the above-mentioned embodiments, the present application also proposes a detachable modular additive manufacturing substrate.

[0067] The modular additive manufacturing substrate is provided with a first tenon structure 1 and a first mortise structure 3, wherein the number of the first tenon structure 1 and the first mortise structure 3 can be correspondingly set to multiple according to the length of the additive manufacturing substrate, the first tenon structure 1 of the additive manufacturing substrate and the first mortise structure 3 of other additive manufacturing substrates are matched with each other in the first direction to connect the additive manufacturing substrate and other additive manufacturing substrates and obtain a first composite substrate, and the extension and expansion of the additive manufacturing substrate in the horizontal direction are realized through the gap matching of various mortise and tenon structures.

[0068] The modular additive manufacturing substrate is also provided with a second tenon structure 5 and a second mortise structure 4, wherein the number of the second tenon structure 5 and the second mortise structure 4 can be correspondingly set to multiple according to the length of the additive manufacturing substrate, the second tenon structure 5 of the additive manufacturing substrate and the second mortise structure 4 of other additive manufacturing substrates are matched with each other in the second direction to connect the additive manufacturing substrate and other additive manufacturing substrates and obtain a second composite substrate, and the height of the second composite substrate is adjusted by adjusting the number of the additive manufacturing substrate in the vertical direction.

[0069] Reference Figure 7 For the schematic diagram of the square additive manufacturing substrate with different types of vertical splicing modules according to some embodiments of the present application, the first tenon structure 1, the first mortise structure 3, the second tenon structure 5 and the second mortise structure 4 can be fan-shaped, circular, triangular, semicircular, rectangular, special-shaped, etc., or a combination of multiple shapes of tenon structure and mortise structure. In addition, the height of the substrate can also be adjusted through the cooperation of threaded holes, screws, countersunk holes or the cooperation of bayonet lugs.

[0070] Reference Figure 8 For the schematic diagram of the fan-shaped, rectangular, triangular and trapezoidal additive manufacturing substrates according to some embodiments of the present application, the additive manufacturing substrate includes at least one of a square, a fan shape, a circle, a triangle, a rectangle or a trapezoid, Figure 8 (a) is a fan shape, Figure 8 (b) is a rectangle, Figure 8 (c) is a triangle, Figure 8 (d) is a trapezoid. The size of the additive manufacturing substrate can be designed to be at least one of small, medium or large, wherein the size of the small additive manufacturing substrate is a×a×h mm 3 , the size of the medium additive manufacturing substrate is 2a×2a×2h mm 3 , and the size of the large additive manufacturing substrate is 4a×4a×4h mm 3 .

[0071] Reference Figure 9For the C-shaped and the H-shaped additive manufacturing base plate according to some embodiments of the present application, the special-shaped additive manufacturing base plate can be designed according to the shape of different parts, for example, the special-shaped additive manufacturing base plate can be a C-shaped additive manufacturing base plate, an H-shaped additive manufacturing base plate, an S-shaped additive manufacturing base plate, a “mountain”-shaped additive manufacturing base plate and other special-shaped base plates, Figure 9 (a) is a C-shaped additive manufacturing base plate, Figure 9 (b) is an H-shaped additive manufacturing base plate.

[0072] Reference Figure 10 (a)-(f) are schematic diagrams of a composite base plate composed of additive manufacturing base plates of multiple different types of horizontal splicing modules according to some embodiments of the present application. The composite base plate can be assembled by combining any block of additive manufacturing base plates of different shapes and different sizes, or by combining any block of additive manufacturing base plates of the same shape and the same size (refer to Figure 11 ).

[0073] The detachable modular additive manufacturing base plate further comprises an auxiliary base plate, the shape of the auxiliary base plate can be at least one of a square, a sector, a circle, a triangle, a rectangle or a trapezoid, the auxiliary base plate is provided with a first auxiliary tenon structure and a first auxiliary mortise structure, the first auxiliary tenon structure of the auxiliary base plate and the first auxiliary mortise structure of other auxiliary base plates are matched with each other in the first direction to connect the auxiliary base plate and the other auxiliary base plates, the auxiliary base plate is further provided with a second auxiliary tenon structure and a second auxiliary mortise structure, the second auxiliary tenon structure of the auxiliary base plate and the second auxiliary mortise structure of other auxiliary base plates are matched with each other in the second direction to connect the auxiliary base plate and the other auxiliary base plates, the additive manufacturing base plate is sleeved in the auxiliary base plate, and the additive manufacturing base plate and the auxiliary additive manufacturing base plate are detachably connected, so that additive manufacturing base plates of any shape can be applied.

[0074] The number of the first auxiliary tenon structure and the first auxiliary mortise structure can be correspondingly set to be multiple according to the length of the additive manufacturing base plate, and the number of the second auxiliary tenon structure and the second auxiliary mortise structure can be correspondingly set to be multiple according to the length of the additive manufacturing base plate. The first auxiliary tenon structure, the first auxiliary mortise structure, the second auxiliary tenon structure and the second auxiliary mortise structure can be a sector, a circle, a triangle, a semicircle, a rectangle, a special shape or a combination of multiple shapes of auxiliary tenon structure and auxiliary mortise structure.

[0075] When the number of the additive manufacturing base plates is 3 and the shape of the additive manufacturing base plate is a circle, the auxiliary base plate needs to be used, the shape of the auxiliary base plate can be a triangle, the hollow area in the middle of the auxiliary base plate matches the 3 combined additive manufacturing base plates, and the additive manufacturing base plate is sleeved in the auxiliary base plate.

[0076] When the number of the additive manufacturing substrates is one and the shape of the additive manufacturing substrate is circular, or when the number of the additive manufacturing substrates is eight and the shape of the additive manufacturing substrate is fan-shaped, an auxiliary substrate is needed, the shape of the auxiliary substrate can be square or rectangular, and the hollow area in the middle of the auxiliary substrate matches the additive manufacturing substrates combined together, and the additive manufacturing substrates are sleeved in the auxiliary substrate.

[0077] As a specific embodiment, when the number of the additive manufacturing substrates is four and the shape of the additive manufacturing substrate is circular, an auxiliary substrate is needed, the shape of the auxiliary substrate can be square or rectangular, and since the four additive manufacturing substrates are combined together, a rhombic hollow area appears in the middle, and the middle part of the auxiliary substrate is also a hollow area, so the additive manufacturing substrates are sleeved in the auxiliary substrate first, and then the hollow area of the additive manufacturing substrates combined together is filled with a rhombic solid.

[0078] In summary, according to the detachable modular additive manufacturing substrate, the first tenon structure and the first mortise structure are arranged on the additive manufacturing substrate, and the first tenon structure of the additive manufacturing substrate and the first mortise structure of the other additive manufacturing substrate are matched with each other in the first direction to connect the additive manufacturing substrate and the other additive manufacturing substrate. Thus, the additive manufacturing substrates can be combined into a complete composite substrate through the free matching between the additive manufacturing substrates, and the composite substrate can be freely adjusted in vertical height and flexibly designed in horizontal direction, thereby effectively solving the problem of multiple composite of metal additive manufacturing and other manufacturing, processing, heat treatment, monitoring and other processes caused by the large size, heavy weight and unadjustable height of the substrate used in the traditional additive manufacturing, and the difficulty in disassembly and reinstallation, and helping to realize the metal composite additive manufacturing and the online monitoring process of the additive manufacturing, and improving the efficiency of the metal composite additive manufacturing.

[0079] The application embodiment provides a target manufacturing piece obtained by the application method of the detachable modular additive manufacturing substrate.

[0080] The target manufacturing piece can be obtained by the application method of the detachable modular additive manufacturing substrate, the additive manufacturing substrates can be combined into a complete composite substrate through the free matching between the additive manufacturing substrates, and the composite substrate can be freely adjusted in vertical height and flexibly designed in horizontal direction, thereby effectively solving the problem of multiple composite of metal additive manufacturing and other manufacturing, processing, heat treatment, monitoring and other processes caused by the large size, heavy weight and unadjustable height of the substrate used in the traditional additive manufacturing, and the difficulty in disassembly and reinstallation, and helping to realize the metal composite additive manufacturing and the online monitoring process of the additive manufacturing, and improving the efficiency of the metal composite additive manufacturing.

[0081] As Figure 12 An embodiment of the present application provides an additive manufacturing device 200, comprising the detachable modular additive manufacturing substrate 100.

[0082] According to the additive manufacturing device, the detachable modular additive manufacturing substrate can be combined into a complete composite substrate through free matching between the additive manufacturing substrates, the free adjustment in vertical height and the flexible design in horizontal direction of the composite substrate can be realized, the problem of multiple composite of metal additive manufacturing and other manufacturing, processing, heat treatment, monitoring and other processes caused by the large size, heavy weight, unadjustable height and difficult disassembly and reinstallation of the substrate used in the traditional additive manufacturing can be effectively solved, the metal composite additive manufacturing and the additive manufacturing online monitoring process can be realized, and the efficiency of the metal composite additive manufacturing is improved.

[0083] In addition, although the operations of the method of the present application are described in a particular order in the drawings, this does not require or imply that the operations must be performed in that particular order, or that all of the illustrated operations must be performed to achieve desirable results. On the contrary, the steps depicted in the flowcharts can be changed, performed in an alternative order, omitted, combined, and / or divided into multiple steps to achieve desirable results.

[0084] It should be noted that, unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms "first", "second", and similar terms used in the embodiments of the present application do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0085] While the principles and spirit of the application have been described with reference to several specific embodiments, it is to be understood that the application is not limited to the specific embodiments disclosed, and that the division of the aspects is not meant to imply that features from these aspects cannot be combined to benefit, but is merely for ease of presentation. The application is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the claims appended hereto. The scope of the claims appended is to be construed in the broadest sense to encompass all such modifications and equivalent structures and functions.

Claims

1. A method of use of a detachable modular additive manufacturing substrate, characterized in that, The method comprises: determining a plurality of additive manufacturing substrates according to a first target requirement, and splicing the plurality of additive manufacturing substrates into a first composite substrate according to the first target requirement, comprising: matching the first tenon structure of the additive manufacturing substrate with the first mortise structure of other additive manufacturing substrates in a first direction to obtain the first composite substrate; wherein the first direction is parallel to the operation table surface on which the additive manufacturing process is implemented; implementing the additive manufacturing process on the predetermined area of the first composite substrate to obtain a first manufactured piece; wherein the first manufactured piece comprises the first composite substrate and a first additive manufactured piece formed on the first composite substrate, and the first manufactured piece is an integrated structure of the first composite substrate and the first additive manufactured piece; splitting each of the first manufactured pieces according to the detachable characteristics of the additive manufacturing substrate to obtain a plurality of separated first manufactured pieces, implementing a non-additive manufacturing process on the separated first manufactured pieces to obtain a plurality of intermediate manufactured pieces, and assembling the plurality of intermediate manufactured pieces and other additive manufacturing substrates on the intermediate manufactured pieces based on the splicable characteristics of the additive manufacturing substrate and a second target requirement to obtain a second manufactured piece, comprising: matching the first tenon structure of the additive manufacturing substrate of the intermediate manufactured piece with the first mortise structure of other additive manufacturing substrates in a first direction, and matching the second tenon structure of the additive manufacturing substrate of the intermediate manufactured piece with the second mortise structure of other additive manufacturing substrates in a second direction to obtain the second manufactured piece; wherein the second direction is perpendicular to the operation table surface on which the additive manufacturing process is implemented; the number of additive manufacturing substrates required by the second target requirement is different from the number of additive manufacturing substrates required by the first target requirement; implementing the additive manufacturing process on the second manufactured piece to obtain a target manufactured piece.

2. The method of claim 1, wherein, The method further comprises: adjusting the number and size of the other additive manufacturing substrates according to the size difference of all the intermediate manufactured pieces in the horizontal direction and the vertical direction, so that all the second manufactured pieces after the leveling processing are in the same horizontal plane.

3. The method of claim 1, wherein, The method comprises: The additive manufacturing substrate is provided with a first tenon structure (1) and a first mortise structure (3), and the first tenon structure (1) of the additive manufacturing substrate matches with the first mortise structure (3) of other additive manufacturing substrates in a first direction to connect the additive manufacturing substrate and other additive manufacturing substrates; The additive manufacturing substrate is further provided with a second tenon structure (5) and a second mortise structure (4), and the second tenon structure (5) of the additive manufacturing substrate matches with the second mortise structure (4) of other additive manufacturing substrates in a second direction to connect the additive manufacturing substrate and other additive manufacturing substrates, wherein the first direction is parallel to the operation table surface on which the additive manufacturing process is implemented, and the second direction is perpendicular to the operation table surface on which the additive manufacturing process is implemented.

4. The method of claim 3, wherein the method further comprises: The additive manufacturing substrate comprises at least one of a fan shape, a circular shape, a triangular shape, a rectangular shape, or a trapezoidal shape.

5. The method of claim 4, wherein, The auxiliary substrate is provided with a first auxiliary tenon structure and a first auxiliary mortise structure, the first auxiliary tenon structure of the auxiliary substrate is matched with the first auxiliary mortise structure of other auxiliary substrate in the first direction to connect the auxiliary substrate and other auxiliary substrate, the auxiliary substrate is further provided with a second auxiliary tenon structure and a second auxiliary mortise structure, the second auxiliary tenon structure of the auxiliary substrate is matched with the second auxiliary mortise structure of other auxiliary substrate in the second direction to connect the auxiliary substrate and other auxiliary substrate; The additive manufacturing substrate is sleeved in the auxiliary substrate, and the additive manufacturing substrate and the auxiliary substrate are detachably connected.

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