Method and system for controlling deformation of arc-shaped part in additive manufacturing

Abstract

The invention relates to the technical field of laser additive manufacturing, in particular to a method and system for controlling deformation of arc-shaped parts in additive manufacturing, and the method comprises the steps that two same arc-shaped parts are arranged and placed on a base plate in the mode that arc tops are opposite, and the minimum interval of the arc tops is 0.2 mm; anti-deformation structures are designed on the two sides of the two arc-shaped parts in an extending mode along the arc-shaped parts; the two anti-deformation structures on the same side are connected through an arc-shaped plate to form a whole; fillets are arranged at the bottom of the whole to form a whole part; the whole part is imported into slicing software, forming parameters are set, and additive manufacturing forming is carried out; and after forming is finished, post-processing is carried out. By means of the method and system, the problem that deformation of the arc-shaped part in the laser additive manufacturing process is difficult to control can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser additive manufacturing, and particularly to a method and system for controlling the deformation of arc-shaped parts during additive manufacturing. Background Art

[0002] Laser additive manufacturing is a complex thermal cycle process. During the laser additive manufacturing process of parts, problems such as large thermal stress, easy deformation, and easy cracking will occur, resulting in unstable shape and quality of the formed parts. For parts with a certain curvature, whether the curvature is uniform or non-uniform, the deformation of the curvature becoming smaller will occur during the forming process, that is, the part tends to become straight, and it is extremely difficult to control its deformation. At present, most manned or unmanned aircraft adopt stealth structure designs, which have extremely high requirements for the part surface. In addition, most aircraft also adopt wing-body fusion designs, and most surface parts such as grille parts and skin parts adopt arc designs. Conventional additive manufacturing methods cannot meet this requirement.

[0003] In the prior art, a Chinese invention patent document with a publication number of CN112453424A and a publication date of March 9, 2021 was proposed. The technical solution disclosed in this patent document is as follows: A method for controlling the deformation of additive manufacturing of thin-wall partition parts. First, determine the placement method of the part, then add process supports to the thin-wall structure part of the part, close the sintered shape part of each layer slice of the thin-wall structure part into a triangle, then import the process model with process supports into magics software, and use the SLM process additive manufacturing method for manufacturing. Finally, post-process the obtained part to obtain the product.

[0004] The above technical solution utilizes the principle of triangle stability to solve the deformation problem of thin-wall isolation parts. However, due to the different deformation laws and deformation amounts of arc-shaped parts and regular straight plate parts, and through experiments, it is found that this technology cannot control the deformation of parts with a certain curvature. Summary of the Invention

[0005] To solve the above technical problems, the present invention proposes a method and system for controlling the deformation of arc-shaped parts during additive manufacturing, which can effectively solve the problem that the deformation of arc-shaped parts is difficult to control during the laser additive manufacturing process.

[0006] The present invention is realized by adopting the following technical solutions: A method for controlling the deformation of arc-shaped parts during additive manufacturing includes the following steps: Step S1. Set two identical arc-shaped parts and place them on the substrate in a way that the arc tops face each other, with a minimum interval of 0.2 mm between the arc tops; Step S2. Design anti-deformation structures along the extensions of both sides of the two arc-shaped parts respectively; Step S3. Two anti-deformation structures on the same side are connected by an arc-shaped plate to form a complete body; Step S4. Rounding is provided at the bottom of the complete body to form an integral part; Step S5. The integral part is imported into slicing software, and forming parameters are set for additive manufacturing forming; Step S6. After forming is completed, post-processing is carried out.

[0007] The curvature κ of the arc-shaped part is 0 to 0.01 mm -1 , the length L of the arc-shaped part ≤ the radius of curvature R, and the thickness of the arc-shaped part is 1 mm to 5 mm.

[0008] It further includes Step S0, performing adaptability treatment on the arc-shaped part, and the adaptability treatment includes rounding the sharp edges and adding an appropriate amount of allowance to the part according to relevant documents.

[0009] The anti-deformation structure, the rounding, and the arc-shaped plate for connecting the anti-deformation structures are all designed and completed in part design software.

[0010] The length of the anti-deformation structure is 1 mm to 2 mm; the curvature of the arc-shaped plate is 0.005 mm -1 ~0.05 mm -1 , and the thickness of the arc-shaped plate is 0.5 mm to 1.5 mm.

[0011] The radius r of the rounding in Step S4 is 2 mm to 5 mm.

[0012] The forming parameters include: the forming layer thickness is 0.025 mm to 0.07 mm, the laser power is 160 W to 450 W, the scanning speed is 1000 mm / s to 3500 mm / s, and the powder supply amount is 0.04 mm to 0.2 mm.

[0013] The post-processing includes heat treatment and subsequent processing of the formed integral part, and the subsequent processing specifically refers to: separating the arc-shaped part from the remaining components by wire cutting.

[0014] When the rounding cannot be directly added to the bottom of the complete body, a base is provided at the bottom of the complete body, and the rounding is provided on the base.

[0015] A system for controlling the deformation of an arc-shaped part in additive manufacturing includes an arc-shaped part acquisition module for acquiring two identical arc-shaped parts; an arc-shaped part placement module for placing the two acquired arc-shaped parts on the substrate in a manner that the arc tops face each other, and the minimum interval between the arc tops is 0.2 mm; The anti-deformation structure design module is used to design anti-deformation structures respectively on both sides of the two arc-shaped parts along the extension of the arc-shaped parts; The structure connection and integration module is used to connect two anti-deformation structures on the same side through an arc-shaped plate to form a complete body; The fillet optimization processing module is used to set fillets at the bottom of the complete body to form an integral part; The additive manufacturing forming module is used for additive manufacturing forming; The post-processing module is used to perform post-processing on the formed integral part.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, through a specific placement method of the arc-shaped parts, combined with the protection of the anti-deformation structure and the arc-shaped plate, the maximum deformation of the formed arc-shaped parts is controlled within 0.02 mm to 0.5 mm, greatly improving the forming success rate of the arc-shaped parts, reducing the delivery cycle of the arc-shaped parts, and saving the raw material cost of additive manufacturing.

[0017] More specifically, the design structure of the present invention is simple, reliable, and easy to operate. Firstly, it cleverly utilizes the principle of the pressure resistance of a circle, adopts an arc-shaped structure to resist the stress generated by the deformation of the arc-shaped parts, and then well controls the deformation of the parts. Secondly, using the principle of the stability of a triangle, the two arc-shaped parts are placed opposite to each other and an arc-shaped thin plate with an anti-deformation structure is added. The shape of each layer of the integral part during forming is an approximate double-triangle structure like "⋈", which greatly improves the forming stability of the parts. In addition, this method can also be applied to other types of arc-shaped parts, arc-shaped parts with uneven curvature, parts with a certain curvature in special-shaped structures, etc. This method has a wide application range, a simple structure design, and can effectively solve the problem of easy deformation of arc-shaped parts in additive manufacturing.

[0018] 2. Fillets are set at the bottom of the complete body to ensure a smooth transition between the arc-shaped parts and the substrate during forming and prevent cracking at the bottom of the parts.

[0019] 3. Through the setting of the base, the stability during the forming of the arc-shaped parts can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the drawings in the specification and the specific embodiments, where: Figure 1 is one of the schematic structural diagrams of the arc-shaped parts in the present invention; Figure 2 is Figure 1 the top view of; Figure 3 is Figure 1 the front view of; Figure 4 is Figure 1Schematic diagram of the deformation trend; Figure 5 is Figure 1 Schematic diagram of the placement; Figure 6 In the present invention, based on Figure 1 Schematic diagram of the overall part formed; Figure 7 In the present invention, based on Figure 1 Top view of the overall part formed; Figure 8 In the present invention, based on Figure 1 Front view of the overall part formed; Figure 9 Another structural schematic diagram of the arc-shaped part in the present invention; Figure 10 is Figure 9 Top view; Figure 11 is Figure 9 Front view; Figure 12 In the present invention, based on Figure 9 Schematic diagram of the overall part formed; Figure 13 In the present invention, based on Figure 9 Top view of the overall part formed; Figure 14 In the present invention, based on Figure 9 Front view of the overall part formed; Markings in the figure: 1. Arc-shaped part, 2. Anti-deformation structure, 3. Arc-shaped plate, 4. Fillet, 5. Base, 6. Arc top distance. Detailed implementation method

[0021] Embodiment 1 As a basic implementation method of the present invention, the present invention includes a method for controlling the deformation of an arc-shaped part in additive manufacturing, including the following steps: Step S1. Set two identical arc-shaped parts 1 and place them on the substrate in a way that the arc tops face each other, with the minimum distance between the arc tops being 0.2 mm.

[0022] Step S2. Design anti-deformation structures 2 along both sides of the two arc-shaped parts 1 and extending along the arc-shaped parts 1.

[0023] Step S3. Connect the two anti-deformation structures 2 on the same side through an arc-shaped plate 3 to form a complete body.

[0024] Step S4. Set a fillet 4 at the bottom of the complete body to form an overall part.

[0025] Step S5. Import the overall part into the slicing software, set the forming parameters, and perform additive manufacturing.

[0026] Step S6. After the forming is completed, perform post-processing.

[0027] Example 2 As a preferred embodiment of the present invention, the present invention includes a method for controlling the deformation of an arc-shaped part during additive manufacturing, comprising the following steps: Step S1. Set two identical arc-shaped parts 1, and place them on the substrate in a manner that the arc tops face each other, with the minimum distance between the arc tops being 0.2 mm. Among them, the curvature κ of the arc-shaped part 1 is 0 to 0.01 mm -1 , the length L of the arc-shaped part 1 ≤ the radius of curvature R, and the thickness of the arc-shaped part 1 is 1 mm to 5 mm.

[0028] Step S2. Design anti-deformation structures 2 along both sides of the two arc-shaped parts 1 and extending along the arc-shaped parts 1.

[0029] Step S3. Connect the two anti-deformation structures 2 on the same side through an arc-shaped plate 3 to form a complete body.

[0030] Step S4. Set a fillet 4 at the bottom of the complete body to form an overall part.

[0031] Step S5. Import the overall part into the slicing software, set the forming parameters, and perform additive manufacturing.

[0032] Step S6. After the forming is completed, perform post-processing. The post-processing includes heat treatment and subsequent processing on the formed overall part. The subsequent processing specifically refers to: separating the arc-shaped part 1 from the remaining components by wire cutting.

[0033] Example 3 As another preferred embodiment of the present invention, the present invention includes a method for controlling the deformation of an arc-shaped part during additive manufacturing, comprising the following steps: Step S1. Set two identical arc-shaped parts 1, and place them on the substrate in a manner that the arc tops face each other, with the minimum distance between the arc tops being 0.2 mm.

[0034] Step S2. Design anti-deformation structures 2 along both sides of the two arc-shaped parts 1 and extending along the arc-shaped parts 1. The length of the anti-deformation structure 2 is 1 mm to 2 mm.

[0035] Step S3. Connect the two anti-deformation structures 2 on the same side through an arc-shaped plate 3 to form a complete body. The curvature of the arc-shaped plate 3 is 0.005 mm -1 ~0.05 mm -1 , and the thickness is 0.5 mm to 1.5 mm.

[0036] Step S4. Set a fillet 4 at the bottom of the complete body to form an integral part. The radius r of the fillet 4 is 2 mm to 5 mm.

[0037] Step S5. Import the integral part into slicing software and set the forming parameters for additive manufacturing. The forming parameters include: the forming layer thickness is 0.025 mm to 0.07 mm, the laser power is 160 W to 450 W, the scanning speed is 1000 mm / s to 3500 mm / s, and the powder feeding amount is 0.04 mm to 0.2 mm.

[0038] Step S6. After the forming is completed, perform post-processing.

[0039] Embodiment 4 As another preferred embodiment of the present invention, the present invention includes a method for controlling the deformation of an arc-shaped part during additive manufacturing, including the following steps Step S0, selection of the forming material and adaptive treatment of the arc-shaped part 1.

[0040] The forming material can be AlSi10Mg or TC4. The curvature κ of the arc-shaped part 1 is 0 to 0.01 mm -1 , the length L of the arc-shaped part 1 ≤ the radius of curvature R, and the thickness of the arc-shaped part 1 is 1 mm to 5 mm. The adaptive treatment includes chamfering the sharp edges and adding an appropriate amount of allowance to the part according to relevant documents.

[0041] Step S1. Set two identical arc-shaped parts 1 and place them on the substrate in a way that the arc tops face each other, with a minimum gap of 0.2 mm between the arc tops.

[0042] Step S2. Design anti-deformation structures 2 on both sides of the two arc-shaped parts 1 and extending a certain distance along the arc-shaped parts 1. The length of the anti-deformation structure 2 is 1 mm to 2 mm.

[0043] Step S3. Connect the two anti-deformation structures 2 on the same side through an arc-shaped plate 3 to form a complete body. The curvature of the arc-shaped plate 3 is 0.005 mm -1 to 0.05 mm -1 , and the thickness is 0.5 mm to 1.5 mm.

[0044] Step S4. Set a fillet 4 at the bottom of the complete body to form an integral part. The radius r of the fillet 4 is 2 mm to 5 mm. When the fillet 4 cannot be directly added to the bottom of the complete body, set a base 5 at the bottom of the complete body and set the fillet 4 on the base 5.

[0045] Step S5. Import the overall part into slicing software, specifically Materialise Magics software, set process parameters for the overall part and perform slicing. Import the sliced file of the overall part into a laser additive manufacturing device, set forming parameters, and perform additive manufacturing. The forming parameters include: the forming layer thickness is 0.025 mm to 0.07 mm, the laser power is 160 W to 450 W, the scanning speed is 1000 mm / s to 3500 mm / s, and the powder feeding amount is 0.04 mm to 0.2 mm.

[0046] Step S6. After the forming is completed, perform post-processing. The post-processing includes heat treatment and subsequent processing of the formed overall part. The subsequent processing specifically refers to: separating the arc-shaped part 1 from the remaining components by wire cutting, including separating the arc-shaped part 1 from the substrate, the anti-deformation structure 2, the rounded corner 4, the arc-shaped plate 3, etc.

[0047] Among them, the anti-deformation structure 2, the rounded corner 4, and the arc-shaped plate 3 used to connect the anti-deformation structure 2 are all designed in the part design software.

[0048] Example 5 As another preferred embodiment of the present invention, the present invention includes a system for controlling the deformation of an arc-shaped part during additive manufacturing, including an arc-shaped part acquisition module for acquiring two identical arc-shaped parts 1; an arc-shaped part placement module for placing the two acquired arc-shaped parts 1 on the substrate in a way that the arc tops face each other, and the minimum distance between the arc tops is 0.2 mm; an anti-deformation structure design module for respectively designing anti-deformation structures 2 along both sides of the two arc-shaped parts 1 and extending along the arc-shaped parts 1; a structure connection and integration module for connecting two anti-deformation structures 2 on the same side through an arc-shaped plate 3 to form a complete body; a rounded corner optimization processing module for setting rounded corners 4 at the bottom of the complete body to form an overall part; an additive manufacturing forming module for performing additive manufacturing; a post-processing module for performing post-processing on the overall part.

[0049] Example 6 As a specific embodiment of the present invention, the arc-shaped part 1 involved in this embodiment is as shown in the specification appendix Figure 1 ~the specification appendix Figure 3 shown. The material of the arc-shaped part 1 is AlSi10Mg, and the forming method is laser additive manufacturing. The structure of the arc-shaped part 1 The dimensions of the arc-shaped part 1 are L = 100 mm, H = 100 mm, M = 2 mm, the curvature radius R is 100 mm, and the curvature k is 0.01 mm -1, belonging to thin-walled parts with uniform curvature, are prone to deformation during the part forming process. The deformation trend is as shown in the attached instructions Figure 4 , resulting in difficulty in forming the parts.

[0050] Therefore, the present invention proposes a method for controlling the deformation of arc-shaped parts during additive manufacturing, including the following steps: Step S1. Copy the arc-shaped part 1 and adjust the positions of two identical arc-shaped parts 1 so that the two identical arc-shaped parts 1 are placed on the substrate with their arc tops facing each other, and the minimum distance between the arc tops is 0.2 mm. Among them, this distance can ensure that the two arc-shaped parts 1 can restrict each other's deformation. The forming direction of the arc-shaped part 1 is perpendicular to the tangent direction of the arc of the arc-shaped part 1, that is: the two-dimensional contour of the single-layer forming of the part is as shown in the attached instructions Figure 5 .

[0051] Step S2. Design anti-deformation structures 2 respectively on both sides of the two arc-shaped parts 1 and extending a certain distance along the arc-shaped parts 1. Referring to the attached instructions Figure 7 , the size of the anti-deformation structure 2 is 1 mm, and this structure is the wire cutting allowance, which is convenient for removing the anti-deformation structure 2 later.

[0052] Step S3. On the two anti-deformation structures 2 on the same side of the two arc-shaped parts 1 respectively, set arc-shaped plates 3 according to the extension angle of the anti-deformation structure 2. The arc-shaped plate 3 is a thin plate structure, the thickness m of the arc-shaped plate 3 = 0.5 mm, and its curvature range is κ = 0.019 mm -1 ~0.048 mm -1 . The function of this structure is to utilize the pressure resistance of its arc-shaped structure to resist the deformation of the arc-shaped part 1. At the same time, the principle of triangle stability is also used. The two arc-shaped parts 1 are placed opposite to each other and the anti-deformation structure 2 and the arc-shaped plate 3 are added. The shape of each layer structure of the overall part during forming is an approximate double-triangle structure like "⋈", which greatly improves the forming stability of the part.

[0053] Step S4. Referring to the attached instructions Figure 6 and the attached instructions Figure 8 , set a fillet 4 at the bottom of the complete part to form the overall part. The size of the fillet 4 is r = 2 mm. The purpose of this fillet 4 is to ensure smooth transition with the substrate during part forming and prevent cracking at the bottom of the part.

[0054] Step S5. Import the overall part into slicing software, specifically Materialise Magics software, and set the forming parameters. The forming layer thickness is 0.03 mm, the laser power is 320 W, the scanning speed is 1300 mm / s, the powder supply amount is 0.04 mm~0.2 mm, and additive manufacturing forming is carried out; Step S6. After the forming is completed, post-processing is carried out.

[0055] Example 7 As a specific embodiment of the present invention, the arc-shaped part 1 involved in this embodiment is as shown in the attached drawings of the specification Figure 9 ~as shown in the attached drawings of the specification 11. The material of the arc-shaped part 1 is TC4, and the forming method is laser additive manufacturing. After analysis, the obtained dimensions of the arc-shaped part 1 are L = 500 mm, H = 300 mm, M = 5 mm, and the curvature is k = 0.001 -7 mm -1 ×10 -4 mm -1 , which belongs to a typical non-uniform curvature special-shaped thin-walled part. During the part forming process, it is extremely easy to deform, and the deformation trend is as shown in the attached drawings of the specification Figure 4 shown, resulting in difficulty in forming the arc-shaped part 1.

[0056] Based on this, the present invention proposes a method for controlling the deformation of arc-shaped parts during additive manufacturing, including the following steps: Step S1. Copy the arc-shaped part 1 and adjust its position to the placement method where the two arcs are opposite to each other. Refer to the attached drawings of the specification Figure 13 , and set the distance 6 between the arc tops to 0.2 mm. This distance can ensure that the two arc-shaped parts 1 can restrict each other's deformation. The forming direction of the arc-shaped part 1 is perpendicular to the tangent direction of the arc of the arc-shaped part 1, that is: the two-dimensional contour of the single-layer forming of the arc-shaped part 1 is similar to that of Example 6, approximately as shown in the attached drawings of the specification Figure 5 shown.

[0057] Step S2. Add an anti-deformation structure 2 to the arc-shaped part 1, extending a certain distance along both sides of the two arc-shaped parts 1 respectively, as shown in the attached drawings of the specification Figure 13 , and the size of the anti-deformation structure 2 is 2 mm. Since the arc-shaped part 1 in this embodiment is larger in size than the arc-shaped part 1 in Example 6, a thicker anti-deformation structure 2 is required. The anti-deformation structure 2 is an anti-deformation arc-shaped thin plate structure, which is the wire cutting allowance to facilitate the removal of the anti-deformation structure 2 later.

[0058] Step S3. Set the arc-shaped plate 3 as shown in the attached drawings of the specification Figure 13 according to the extension angle of the anti-deformation structure 2. The arc-shaped plate 3 is an arc-shaped thin plate structure, and the set thickness m of the arc-shaped plate 3 is 1.5 mm, and its curvature range is κ = 0.008 - 0.01 mm -1 . The function of the arc-shaped plate 3 is to resist the deformation of the arc-shaped part 1 by using the pressure resistance of its arc-shaped structure. At the same time, by using the principle of triangle stability, the two arc-shaped parts 1 are placed opposite to each other and the anti-deformation structure 2 and the arc-shaped plate 3 are added. The shape of each layer structure of the overall part during forming is an approximate double-triangle structure like "⋈", which greatly improves the forming stability of the part.

[0059] Step S4. Since the arc-shaped part 1 is irregular and it is impossible to directly add a fillet 4 to the bottom of the overall part, a base 5 is added to the bottom of the overall part. Refer to the attached Figure 12 and the attached Figure 14 . The base 5 can support the arc-shaped part 1 at a distance of 1 - 5 mm from the substrate. This base 5 can increase the stability during part forming. At the bottom of the base 5, a fillet 4 is added. The size of this fillet 4 is r = 2 mm. This fillet 4 is designed to ensure a smooth transition between the arc-shaped part 1 and the substrate during forming and prevent cracking at the bottom of the part.

[0060] Step S5. Import the process digital model of the above overall part into Materialise Magics software and set the forming parameters: the forming layer thickness is 0.03 mm, the laser power is 340 W, the scanning speed is 1250 mm / s, and the powder feeding amount is 0.1 mm - 0.15 mm.

[0061] In summary, after those of ordinary skill in the art read the present invention document, all other corresponding transformation schemes that can be made without creative mental labor according to the technical solutions and technical concepts of the present invention shall fall within the scope protected by the present invention.

Claims

1. A method for controlling the deformation of arc-shaped parts in additive manufacturing, characterized in that: It includes the following steps: Step S1. Set two identical arc-shaped parts (1), and place them on the substrate in a way that the arc tops face each other, with the minimum distance between the arc tops being 0.2 mm; Step S2. Design anti-deformation structures (2) respectively on both sides of the two arc-shaped parts (1) along the extension of the arc-shaped parts (1); Step S3. Connect the two anti-deformation structures (2) on the same side through an arc-shaped plate (3) to form a complete body; Step S4. Set a fillet (4) at the bottom of the complete body to form an overall part; Step S5. Import the overall part into slicing software, set the forming parameters, and perform additive manufacturing; Step S6. After the forming is completed, perform post-processing.

2. The method for controlling the deformation of an arc-shaped part in additive manufacturing according to claim 1, characterized in that: The curvature κ of the arc-shaped part (1) is 0 to 0.01 mm -1 , the length L of the arc-shaped part (1) is less than or equal to the radius of curvature R, and the thickness of the arc-shaped part (1) is 1 mm to 5 mm.

3. A method for controlling the deformation of an arc-shaped part during additive manufacturing according to claim 2, characterized in that: It also includes Step S0, which performs adaptability processing on the arc-shaped part (1), and the adaptability processing includes rounding the sharp edges and adding an appropriate amount of allowance to the part according to relevant documents.

4. A method for controlling the deformation of an arc-shaped part in additive manufacturing according to claim 2, characterized in that: The anti-deformation structure (2), the fillet (4), and the arc-shaped plate (3) used to connect the anti-deformation structure (2) are all designed and completed in the part design software.

5. A method for controlling the deformation of an arc-shaped part during additive manufacturing according to claim 2, characterized in that: The length of the anti-deformation structure (2) is 1 mm to 2 mm; the curvature of the arc-shaped plate (3) is 0.005 mm -1 to 0.05 mm -1 , and the thickness of the arc-shaped plate (3) is 0.5 mm to 1.5 mm.

6. A method for controlling the deformation of an arc-shaped part during additive manufacturing according to claim 2, characterized in that: The radius r of the fillet (4) in Step S4 is 2 mm to 5 mm.

7. A method for controlling the deformation of an arc-shaped part during additive manufacturing according to claim 2, characterized in that: The forming parameters include: the forming layer thickness is 0.025 mm to 0.07 mm, the laser power is 160 W to 450 W, the scanning speed is 1000 mm / s to 3500 mm / s, and the powder feeding amount is 0.04 mm to 0.2 mm.

8. A method for controlling the deformation of an arc-shaped part in additive manufacturing according to claim 2, characterized in that: The post-processing includes heat treatment and subsequent processing of the formed overall part, and the subsequent processing specifically refers to separating the arc-shaped part (1) from the rest of the components by wire cutting.

9. A method for controlling the deformation of an arc-shaped part in additive manufacturing according to claim 2, characterized in that: When the fillet (4) cannot be directly added to the bottom of the complete body, a base (5) is set at the bottom of the complete body, and a fillet (4) is set on the base (5).

10. A system for controlling the deformation of arc-shaped parts in additive manufacturing, characterized in that: It includes an arc-shaped part acquisition module for acquiring two identical arc-shaped parts (1); an arc-shaped part placement module for placing the two acquired arc-shaped parts (1) on the substrate in a way that the arc tops face each other, with the minimum distance between the arc tops being 0.2 mm; an anti-deformation structure design module for designing anti-deformation structures (2) respectively on both sides of the two arc-shaped parts (1) along the extension of the arc-shaped parts (1); a structure connection and integration module for connecting the two anti-deformation structures (2) on the same side through an arc-shaped plate (3) to form a complete body; a fillet optimization and processing module for setting a fillet (4) at the bottom of the complete body to form an overall part; an additive manufacturing forming module for performing additive manufacturing; a post-processing module for performing post-processing on the formed overall part.

Images