A processing method and combined substrate for additive manufacturing of both sides of a part

Abstract

The application discloses a processing method and a combined substrate for processing front and back surfaces of an additively manufactured part. The processing method comprises the following steps: defining a simulated printing structure; printing a generated product to be processed, disassembling internal plates in the generated product to be processed, and generating a product to be subtractively manufactured; subtractively manufacturing front and back surfaces of a part to be processed in the product to be subtractively manufactured according to positioning points in the product to be subtractively manufactured, so as to generate a processed product part, and further generate a product to be cut; and cutting off anchor points, external plates and positioning points in the product to be cut, so as to obtain the processed product part. The combined substrate comprises an external plate and an internal plate which is detachably connected to the external plate, and the processing of the front and back surfaces of the additively manufactured part is realized. The processing of the part is realized in an all-round way, the processing efficiency is improved, the production cost is reduced, and meanwhile, the processing quality and precision of the product part are ensured.

Description

Technical Field

[0001] This application relates to the field of additive manufacturing, and in particular to a processing method and a composite substrate for processing both sides of an additively manufactured part. Background Technology

[0002] There are two main processing methods for traditional additive manufacturing of product parts. The first method involves cutting and separating the product part from the substrate, then fixing it onto a subtractive manufacturing machine for processing. However, for complex product parts without relatively regular surfaces for clamping and fixing, clamping and fixing onto the machine becomes difficult. Some companies and manufacturers design specific tooling fixtures to fix the product parts, but these fixtures lack versatility and are time-consuming and labor-intensive. The second method involves fixing the product part to the subtractive manufacturing machine along with the substrate for processing. After processing, the processed product part and the substrate are cut and separated. However, the surfaces on which the product part and the substrate are fixed, i.e., the front and back sides of the product part, cannot be processed simultaneously. Performing a second processing after cutting and separating from the substrate is not only time-consuming and labor-intensive, but also results in decreased processing accuracy and may also lead to the problems of the first method.

[0003] Therefore, traditional additive manufacturing methods cannot fully meet the manufacturing needs of complex product parts, which in turn affects the manufacturing quality and efficiency of complex product parts and increases the production costs of enterprises. Summary of the Invention

[0004] To address the problem that traditional additive manufacturing methods cannot fully meet the manufacturing requirements of complex product parts, thereby affecting the manufacturing quality and efficiency of complex product parts and increasing the production costs of enterprises, this application provides a processing method for both sides of additively manufactured parts and a combined substrate.

[0005] The processing method for both sides of an additively manufactured part provided in this application adopts the following technical solution:

[0006] A method for processing both sides of an additively manufactured part, applied to a composite substrate, the composite substrate including an outer plate and an inner plate detachably connected to the outer plate, the processing method comprising:

[0007] Define the simulated printing structure;

[0008] According to the simulated printing structure, a finished product to be processed is printed, wherein the finished product to be processed includes a part to be processed located on the inner plate, a positioning point located on the inner plate, an anchoring point located on the outer plate, and a connecting rod, the connecting rod being used to connect the part to be processed, the positioning point, and the anchoring point;

[0009] Disassemble the internal panels of the finished product to be processed, so that the internal panels of the finished product to be processed are separated from the external panels of the finished product to be processed, thereby generating the finished product to be manufactured by material reduction;

[0010] Based on the positioning points in the finished product to be subtracted, the front and back sides of the part to be processed in the finished product to be subtracted are manufactured to generate the processed product part, and then generate the finished product to be cut.

[0011] The anchoring points, outer plates, and positioning points of the finished product to be cut are removed to obtain the processed product parts.

[0012] By employing the above technical solution and using a composite substrate, including an outer plate and an internal plate detachably connected to it, the processing of both sides of an additively manufactured part is achieved. First, a simulated printing structure is defined, and a finished product to be processed is printed based on this structure, including the part to be processed, positioning points, and anchoring points. Then, the internal plate is disassembled, separating it from the outer plate, generating a finished product to be processed using subtractive manufacturing. Next, based on the positioning points in the finished product to be processed, both sides of the part to be processed are processed using subtractive manufacturing technology, thereby generating the finished product part. Finally, the anchoring points, outer plate, and positioning points in the finished product to be cut are removed to obtain the finished product part. This method achieves comprehensive part processing, improves processing efficiency, reduces production costs, and simultaneously ensures the processing quality and precision of the product part.

[0013] Preferably, the step of removing the anchoring point, the outer plate, and the positioning point from the finished product to be cut, thereby obtaining the processed product part, includes:

[0014] Wire cutting is used to cut the anchor points and the outer plates of the finished product to be cut, in order to generate the finished product to be precision cut;

[0015] The connecting rods around the product parts in the finished product to be precision cut are cut by wire cutting to remove anchor points and positioning points, thereby generating the finished product to be polished;

[0016] The connecting rod in the finished product to be polished is removed by grinding to obtain the finished product part.

[0017] By adopting the above technical solution, this method uses a combination of wire cutting and grinding to achieve precise machining of additive manufacturing products, effectively removing anchor points, external plates, and positioning points, thereby obtaining the finished product parts. This process not only ensures the precision and surface quality of the product parts but also improves production efficiency and reduces production costs.

[0018] Preferably, the step of defining the simulated printing structure includes:

[0019] Obtain part characteristic information and subtractive manufacturing requirement information, determine the coordinates of the first point, and use the first point coordinates to print and generate positioning points at the corresponding positions of the internal plates;

[0020] Based on the coordinates of the first point, the coordinates of the second point are determined. The coordinates of the second point are used to print and generate anchor points at the corresponding positions on the outer plate.

[0021] Based on the coordinates of the first point and the coordinates of the second point, the link generation parameters are determined. The link generation parameters are used to generate a link between the positioning point, the anchoring point and the part.

[0022] By adopting the above technical solution, precise cutting and grinding of product parts are achieved. Through wire cutting and grinding processes, anchor points, external plates and positioning points are effectively removed, and while maintaining the integrity of the parts, processing accuracy and surface quality are ensured, thereby obtaining high-quality finished product parts.

[0023] Preferably, the finished product to be processed further includes a support for connecting the internal plate and the positioning point, connecting rod and the part to be processed located above the internal plate;

[0024] The step of disassembling the internal panels of the finished product to be processed, so as to separate the internal panels from the external panels of the finished product to be processed, and thereby generate the finished product to be manufactured by subtractive processing, includes:

[0025] Perform an annealing operation on the finished product to be processed to generate a finished product to be separated;

[0026] Remove the supporting components from the finished product to be separated to generate a finished product without supports;

[0027] The internal panels of the unsupported finished product are disassembled to separate the internal panels from the external panels, thereby generating the finished product to be manufactured by material reduction.

[0028] By adopting the above technical solution, supporting components are added to the finished product to be processed, effectively supporting the parts to be processed, positioning points, and connecting rods, making the overall structure more stable. During the disassembly of the finished product, an annealing operation is first performed to improve the machinability and stability of the product to be separated. Subsequently, removing the supporting components facilitates the smooth disconnection of the supporting components from the internal panels, thereby disassembling the internal panels and generating the finished product to be manufactured using subtractive processing. This process ensures the stability and integrity of the product during disassembly, improving processing efficiency and finished product quality.

[0029] Preferably, after the step of determining the link generation parameters based on the first point coordinates and the second point coordinates, wherein the link generation parameters are used to generate a link between the positioning point, the anchoring point, and the part, the method further includes:

[0030] Obtain the vertical distances between the parts, each link, and each positioning point and the internal plate. Based on the vertical distances, determine the support generation parameters. The support generation parameters are used to generate support components between the parts and the internal plate, the links and the internal plate, and the positioning points and the internal plate.

[0031] By employing the above technical solutions, these support generation parameters will be used to create support components between parts and internal plates, connecting rods and internal plates, and locating points and internal plates. These steps ensure a stable connection between parts, connecting rods, and locating points, providing support and stability for subsequent machining.

[0032] A composite substrate for the front and back sides of an additively manufactured part includes an inner plate and an outer plate. The inner side of the outer plate is provided with a cavity for nesting and cooperating with the inner plate. The sidewall of the outer plate is provided with a notch for connecting the cavity and the outer side of the outer plate. The outer plate is provided with a first positioning member protruding towards the cavity for abutting against the bottom of the inner plate. The first positioning member is slidably engaged with the inner plate so that the inner plate can move through the notch in the direction of insertion or withdrawal from the cavity.

[0033] By adopting the above technical solution, the design of this composite substrate can realize the nesting and cooperation between the internal and external plates. Through the cavity and notch structure of the external plate and the first positioning part at the bottom of the internal plate, the internal plate can be inserted or removed from the cavity of the external plate through the notch when needed, realizing convenient and quick assembly and disassembly. This provides a more convenient process for processing both sides of additive manufacturing parts, improving production efficiency and manufacturing quality.

[0034] Preferably, there are two first positioning members, which are located on opposite sides of the cavity. The inner side of the outer plate away from the notch extends a second positioning member for abutting against the bottom of the inner plate. The second positioning member is at the same horizontal height as the first positioning member.

[0035] By adopting the above technical solution, the positioning stability of the internal modules is further enhanced, ensuring the accuracy and stability of the assembly and disassembly process of the composite substrate.

[0036] Preferably, the outer plate has screw holes on its opposite side walls that communicate with the cavity. The screw holes penetrate the side walls along the direction close to the cavity to connect the cavity with the outer plate, and are used for fasteners that are threaded into the screw holes to pass through, so that the fasteners are pre-tightened to the inner plate.

[0037] By adopting the above technical solution, threaded holes are provided on the opposite side walls of the outer plate. These threaded holes communicate with the cavity and are used to install threaded fasteners. By passing the fasteners through the threaded holes, the inner plate can be pre-tightened, thereby ensuring a stable fit between the inner and outer plates.

[0038] Preferably, the bottom of the internal plate is provided with a groove that slides and engages with the first positioning member, and a positioning block is provided at one end of the groove near the notch. As the internal plate moves in the direction of insertion into or removal from the cavity, the positioning block moves and engages with the side of the first positioning member near the notch.

[0039] By adopting the above technical solution, a sliding groove is designed at the bottom of the internal plate to slide with the first positioning component, and a positioning block is provided at the end of the sliding groove near the notch. As the internal plate moves in the direction of insertion or withdrawal from the cavity, the positioning block will fit against the side of the first positioning component near the notch, thereby achieving movable positioning.

[0040] Preferably, the top surface of the outer plate is flush with the top surface of the inner plate.

[0041] By adopting the above technical solution, it is ensured that the upper surfaces of the outer and inner plates are on the same horizontal plane after being processed by milling and grinding, thus ensuring the smooth progress of 3D printing.

[0042] In summary, this application includes at least one of the following beneficial technical effects:

[0043] 1. This application achieves the processing of both sides of an additively manufactured part by using a composite substrate, including an outer plate and a detachably connected inner plate. First, a simulated printing structure is defined and printed to generate a finished product to be processed, including the part to be processed, positioning points, and anchor points. Then, the inner plate is disassembled, separating it from the outer plate to generate a subtractive manufacturing product. Next, based on the positioning points in the subtractive manufacturing product, both sides of the part to be processed are processed using subtractive manufacturing technology, thereby generating a finished product part. Finally, the anchor points, outer plate, and positioning points in the finished product to be cut are removed to obtain the finished product part. This method achieves processing of both sides of the part, improves processing efficiency, reduces production costs, and ensures the processing quality and precision of the product part.

[0044] 2. This application enables nested mating between the inner and outer panels through the design of the combined substrate. The cavity and notch structure of the outer panel, as well as the first positioning part at the bottom of the inner panel, allow the inner panel to be inserted into or removed from the cavity of the outer panel through the notch when needed, achieving convenient and quick assembly and disassembly. This provides a more convenient process for processing both sides of additive manufacturing parts, improving production efficiency and manufacturing quality. Attached Figure Description

[0045] Figure 1 This is a flowchart of a processing method for both sides of an additively manufactured part according to an embodiment of this application.

[0046] Figure 2 This is a flowchart illustrating the implementation of step S50 in a processing method for both sides of an additively manufactured part according to an embodiment of this application.

[0047] Figure 3 This is a flowchart illustrating the implementation of step S10 in a processing method for both sides of an additively manufactured part according to an embodiment of this application.

[0048] Figure 4 This is a flowchart illustrating the implementation of step S30 in a processing method for both sides of an additively manufactured part according to an embodiment of this application.

[0049] Figure 5 This is another implementation flowchart of step S10 in a processing method for both sides of an additively manufactured part according to an embodiment of this application;

[0050] Figure 6 This is a three-dimensional structural diagram of an additive manufacturing part, in which the inner and outer plates of a composite substrate on both sides are nested together.

[0051] Figure 7 This is a three-dimensional structural diagram of an additive manufacturing part's composite substrate with its inner and outer plates in a disassembled state, according to an embodiment of this application. Figure 1 .

[0052] Figure 8 This is a three-dimensional structural diagram of an additive manufacturing part's composite substrate with its inner and outer plates in a disassembled state, according to an embodiment of this application. Figure 2 .

[0053] Figure 9 This is a three-dimensional structural diagram of the finished product to be processed in a processing method for both sides of an additively manufactured part according to an embodiment of this application.

[0054] Figure 10This is a three-dimensional structural diagram of the finished product to be manufactured by subtractive manufacturing and the internal plates after disassembly, in a processing method for the front and back sides of an additively manufactured part according to an embodiment of this application.

[0055] Figure 11 This is a three-dimensional structural diagram of the finished product to be cut in a processing method for both sides of an additively manufactured part according to an embodiment of this application.

[0056] Figure 12 This is a three-dimensional structural diagram of the finished product to be polished in a processing method for the front and back sides of an additively manufactured part according to an embodiment of this application.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1. External panel; 11. Cavity; 12. Notch; 13. First positioning component; 14. Second positioning component; 15. Screw hole;

[0059] 2. Internal panels; 21. Slide rails; 22. Positioning blocks;

[0060] 100, part to be processed; 200, positioning point; 300, anchor point; 400, connecting rod; 500, support component. Detailed Implementation

[0061] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0062] Reference Figure 1 , 9 10, 11, A processing method for both sides of an additively manufactured part, applied to a composite substrate, the composite substrate including an outer plate 1 and an inner plate 2 detachably connected to the outer plate 1, the processing method including:

[0063] S10. Define the simulated printing structure;

[0064] In this embodiment, the simulated printing structure refers to a virtual structure created by computer simulation technology based on the structural characteristics of the actual printed product parts. It is used to simulate the printing process and characteristics of the product parts. When 3D printing a complex mechanical part, the simulated printing structure can include the geometry of the product parts, support structure, filling method, etc., to simulate the structure and characteristics during actual printing. It also includes the printing of positioning point 200, anchor point 300, connecting rod 400 and support 500.

[0065] S20. Based on the simulated printing structure, print the finished product to be processed, wherein the finished product to be processed includes the part to be processed 100 located on the inner plate 2, the positioning point 200 located on the inner plate 2, the anchoring point 300 located on the outer plate 1, and the connecting rod 400, the connecting rod 400 being used to connect the part to be processed 100, the positioning point 200 and the anchoring point 300.

[0066] In this embodiment, the finished product to be processed refers to a workpiece generated by 3D printing, which includes components such as the part to be processed 100, positioning points 200, anchoring points 300, and connecting rods 400. The part to be processed 100 is the main component that needs to be processed. The positioning points 200 are points used for accurate positioning by the subtractive manufacturing equipment. The anchoring points 300 are points used to fix the workpiece. The connecting rods 400 connect these components to maintain their relative positions and structural integrity. In this application, the positioning points 200 and anchoring points 300 are printed as cylindrical solid points.

[0067] S30. Disassemble the internal panel 2 in the finished product to be processed, so that the internal panel 2 in the finished product to be processed is separated from the external panel 1 in the finished product to be processed, thereby generating the finished product to be manufactured by material reduction.

[0068] In this embodiment, the finished product to be manufactured by subtractive manufacturing refers to the product obtained by disassembling the internal plate 2 and the external plate 1 of the finished product to be processed. In this process, subsequent subtractive manufacturing processing is usually carried out to further improve the shape and structure of the product. The parts containing the internal plate 2 and the external plate 1 obtained by 3D printing are disassembled, and the finished product to be manufactured by subtractive manufacturing is obtained after separating the internal plate 2.

[0069] S40. Based on the positioning point 200 in the finished product to be subtracted, subtract the front and back sides of the part 100 to be processed in the finished product to be subtracted, so as to generate the processed product part, and then generate the finished product to be cut.

[0070] In this embodiment, based on the positioning point 200 in the finished product to be manufactured by subtractive manufacturing technology, both sides of the part 100 to be processed are processed to obtain the processed product part, thereby generating the finished product to be cut. The purpose of this is to facilitate the simultaneous processing of both sides of the part 100 to be processed, thereby improving processing efficiency and consistency. For example, by determining the position at the positioning point 200, the processing equipment is accurately controlled to cut the product part, ensuring the consistency and accuracy of processing on both sides;

[0071] Subtractive manufacturing is a process of creating parts or products by removing material. In subtractive manufacturing, material is typically removed from a larger block or blank to achieve the desired shape and dimensions. Common subtractive manufacturing techniques include CNC machining, electrical discharge machining (EDM), laser cutting, and waterjet cutting. These techniques are commonly used to manufacture parts requiring high precision and quality, and are relatively easy to mass-produce.

[0072] S50, cut off the anchor point 300, outer plate 1 and positioning point 200 in the finished product to be cut, and then obtain the processed product part.

[0073] In this embodiment, this step aims to remove excess material from the finished product to obtain the final processed part. By removing the anchor point 300, the outer plate 1, and the positioning point 200, the final shape and size of the product part are ensured to meet the requirements and enable it to be used smoothly. For example, assuming the finished product to be cut is a metal part, the cutting process will remove the surrounding additional material and the positioning point 200, ultimately resulting in a complete product part that meets the design requirements.

[0074] Specifically, using a composite substrate, including an outer plate 1 and an inner plate 2 detachably connected to it, the processing of both sides of an additively manufactured part is achieved. First, a simulated printing structure is defined, and a finished product to be processed is printed based on this structure, including the part to be processed 100, positioning points 200, and anchoring points 300. Then, the inner plate 2 is disassembled, separating it from the outer plate 1, generating a subtractive manufacturing product. Next, based on the positioning points 200 in the subtractive manufacturing product, both sides of the part to be processed 100 are processed using subtractive manufacturing technology, thereby generating a finished product part. Finally, the anchoring points 300, the outer plate 1, and the positioning points 200 in the finished product are removed to obtain the finished product part. This method achieves comprehensive part processing, improves processing efficiency, reduces production costs, and ensures the processing quality and precision of the product part.

[0075] The data processing design before part printing requires the design of anchor point 300 and positioning point 200, where positioning point 200 and anchor point 300 are:

[0076] The recommended dimensions for positioning point 200 are: φ5-8mm and height 10-15mm. It is used for positioning during processing. During printing, it is located in the inner half of the assembled substrate and is printed together with the part using a support method.

[0077] The recommended dimensions for anchor point 300 are: φ5-10mm, height 15-20mm. It is used to anchor parts to the outer half of the composite substrate. It is printed directly without support to ensure a firm fit.

[0078] Then the parts, anchor point 300, and positioning point 200 are connected together via connecting rod 400;

[0079] Then, the support design was carried out according to the conventional 3D printing method. Anchor point 300 was printed directly without support to ensure firmness; parts, positioning points 200 and connecting rods were printed using a support method 3-5mm away from the substrate.

[0080] More specifically, additive manufacturing, also known as 3D printing, is a manufacturing method that builds objects by adding materials layer by layer. Unlike traditional subtractive manufacturing methods (such as cutting and grinding), additive manufacturing obtains a three-dimensional model of an object through computer-aided design (CAD) or 3D scanning, and then uses appropriate equipment to deposit materials layer by layer to ultimately form a physical object.

[0081] The advantages of additive manufacturing technology mainly include:

[0082] 1. High design freedom: Enables the manufacture of products with complex shapes and intricate structures, unrestricted by traditional manufacturing processes. 2. High material utilization: Generates virtually no waste, significantly saving raw materials. 3. Short production cycle: Quickly manufactures product prototypes or small batches of parts, shortening product development and production cycles. 4. Customizability: Products can be customized according to customer needs, achieving personalized manufacturing. 5. Reduced costs: At a certain scale, no molds or fixtures are required, reducing production costs.

[0083] However, additive manufacturing technology also has some limitations and challenges, such as:

[0084] 1. Manufacturing precision and surface quality: Slightly inferior to traditional manufacturing methods in terms of precision and surface finish. 2. Material properties: Limited range of usable materials, and the performance of some materials is inferior to traditional materials. 3. Production efficiency: Lower efficiency for large-scale production.

[0085] Currently, some companies and individuals are using the above methods to manufacture and process parts. However, there are essentially two specific methods:

[0086] Method 1: After the additively manufactured parts are cut and separated from the substrate, the parts are fixed on a subtractive manufacturing machine tool for processing.

[0087] Method 2: The additively manufactured parts, along with the substrate, are fixed onto a subtractive manufacturing machine tool for processing. After processing, the processed parts and the substrate are cut and separated.

[0088] The problem with method one is that when dealing with complex parts that do not have relatively regular surfaces for clamping and fixing, it is difficult to clamp and fix them onto the machine. Some companies and manufacturers design specific tooling fixtures to fix the parts, but the designed tooling fixtures are not universal and are time-consuming and labor-intensive.

[0089] The problem with method two is that the surfaces where the parts and the substrate are fixed cannot be processed simultaneously. If a second processing is performed after the parts are cut and separated from the substrate, it will not only be time-consuming and labor-intensive, but also result in poor processing accuracy, and the problems of method one will also exist.

[0090] The approach follows Method 2, but requires the design of a nested "composite substrate". The composite substrate is divided into two parts, an inner half and an outer half. The inner and outer parts are positioned by specially designed "locating pins" and clamped together by two screw holes on both sides of the outer part. The combination of locating pins and screws ensures that the inner and outer parts remain in a stable position, and ensures that the upper surfaces of the inner and outer parts are on the same horizontal plane after milling and grinding, thus ensuring the smooth progress of 3D printing.

[0091] During 3D printing, the inner and outer parts are nested together to form a "composite substrate," which is then fixed to the 3D printing platform using conventional 3D printing methods, and printing can then proceed. The inner part is used to print the parts and positioning points 200, while the outer part is used to print the anchor points 300.

[0092] Reference Figure 2 , 12 Furthermore, the step of removing the anchoring point 300, the outer plate 1, and the positioning point 200 from the finished product to be cut, thereby obtaining the processed product part, includes:

[0093] S501, wire cut the anchor point 300 in the finished product to be cut and the outer plate 1 in the finished product to be cut, so as to generate the finished product to be precision cut;

[0094] In this embodiment, this step uses wire EDM technology to cut the anchor points 300 and the outer plate 1 of the finished product to obtain a precise cut. This helps to remove unnecessary parts, providing better conditions for subsequent processing steps and ensuring that the size and shape of the product parts meet the requirements. For example, for a metal plate, wire EDM can precisely cut the edge of the plate and the anchor points 300, forming an accurate cutting boundary for further processing, such as milling or grinding.

[0095] S502, wire cutting the connecting rods 400 around the product parts in the finished product to be precision cut, so as to remove the anchoring point 300 and the positioning point 200, thereby generating the finished product to be polished;

[0096] In this embodiment, this step utilizes wire EDM technology to cut the connecting rods 400 connected to the product part in the finished product to be precision-cut, thereby removing the anchor points 300 and positioning points 200, thus forming the finished product to be polished. By removing the connecting rods 400, the product part can be separated from its surrounding auxiliary structures, providing better conditions for subsequent surface treatment and ensuring the flatness and smoothness of the product part's surface. For example, for a metal part, wire EDM can precisely remove the surrounding connecting rods 400, separating the part from its surrounding anchor points 300 and positioning points 200, so that the next step of polishing can be carried out to make its surface smooth and flat.

[0097] S503. Grind away the connecting rod 400 in the finished product to be ground to obtain the finished product part.

[0098] In this embodiment, this step uses a grinding technique to remove the connecting rod 400 from the finished product, thereby obtaining the processed part. Grinding further improves the surface quality and precision of the part, removing burrs and unevenness to achieve the required smoothness and precision. For example, for a mechanical part, a grinding tool is used to remove the connecting rod 400 from the surface of the finished product to obtain a smooth, shiny surface, thus improving its quality and aesthetics.

[0099] Specifically, this method employs a combination of wire cutting and grinding to achieve precise machining of the additively manufactured product. It effectively removes the anchor point 300, the outer plate 1, and the positioning point 200, thereby obtaining the finished product part. This process not only ensures the precision and surface quality of the product part but also improves production efficiency and reduces production costs.

[0100] Reference Figure 3 Furthermore, the steps for defining the simulated printing structure include:

[0101] S101. Obtain part characteristic information and subtractive manufacturing requirement information, determine the coordinates of the first point, and use the coordinates of the first point to print and generate positioning point 200 at the corresponding position of the internal plate 2.

[0102] In this embodiment, this step determines the coordinates of a first point on the internal plate 2 by acquiring the part's characteristic information and the requirements of subtractive manufacturing. These coordinates are used to print positioning points 200 at the corresponding positions on the internal plate 2, ensuring the precise positioning of the part 100 to be processed during the subtractive manufacturing process. For example, based on the part's size and shape characteristics, and the requirements of subtractive manufacturing, the coordinates of the first point on the internal plate 2 are determined, and then positioning points 200 are printed at those positions to accurately position the part 100 to be processed during subsequent processing.

[0103] S102. Based on the coordinates of the first point, determine the coordinates of the second point. The coordinates of the second point are used to print and generate anchor points 300 at the corresponding positions on the outer panel 1.

[0104] In this embodiment, this step determines the second point coordinates on the outer plate 1 based on the determined first point coordinates. The second point coordinates are used to print anchor points 300 at the corresponding positions on the outer plate 1 to ensure the stability of the composite substrate and its fixation during processing. For example, based on the position of the inner plate 2 determined by the first point coordinates, and combined with the size and shape characteristics of the part, the second point coordinates on the outer plate 1 are determined, and then anchor points 300 are printed at those positions to ensure the fixation and stability of the part during processing.

[0105] S103. Determine the link generation parameters based on the coordinates of the first and second points. The link generation parameters are used to generate link 400 between the positioning point 200, the anchoring point 300 and the part.

[0106] In this embodiment, in this step, the generation parameters of the link 400 are determined using the already determined first and second point coordinates. These parameters are used to generate the link 400 between the positioning point 200, the anchor point 300, and the part to enhance the stability and connectivity of the part. For example, the length, diameter, and shape of the link 400 are determined based on the distance and angle between the first and second point coordinates to ensure that it can provide effective support and connection between the positioning point 200, the anchor point 300, and the part.

[0107] Specifically, it achieves precise cutting and grinding of product parts. Through wire cutting and grinding processes, anchor point 300, outer plate 1 and positioning point 200 are effectively removed. While maintaining the integrity of the parts, it ensures processing accuracy and surface quality, thereby obtaining high-quality finished product parts.

[0108] Reference Figure 4 Furthermore, the finished product to be processed also includes a support 500 for connecting the inner plate 2 and the positioning point 200, the connecting rod 400 and the part to be processed 100 located above the inner plate 2.

[0109] The step of disassembling the internal panel 2 of the finished product to be processed, so as to separate the internal panel 2 from the external panel 1 of the finished product to be processed, and thereby generating the finished product to be manufactured by subtractive processing, includes:

[0110] S301. Perform annealing operation on the finished product to be processed to generate the finished product to be separated;

[0111] In this embodiment, the finished product to be processed is annealed to eliminate internal stress and improve the toughness of the material, thereby generating the finished product to be separated. For example, in the additive manufacturing process, the metal material will generate internal stress due to rapid solidification. Through the annealing operation, these stresses can be released, making the material structure more stable.

[0112] S302. Remove the support component 500 from the finished product to be separated to generate a finished product without support;

[0113] In this embodiment, the support member 500 is removed from the finished product to be separated, thereby generating a desupported finished product. The support member 500 is typically used in additive manufacturing to support suspended parts to prevent deformation or collapse. Once the finished product is manufactured, the support member 500 needs to be removed. For example, for a complex metal part, a support structure needs to be added during additive manufacturing to support suspended details; after the part is manufactured, these support structures need to be removed to obtain the final product.

[0114] S303. Disassemble the internal plate 2 in the unsupported finished product to separate the internal plate 2 from the external plate 1 in the unsupported finished product, thereby generating the finished product to be manufactured by material reduction.

[0115] In this embodiment, the inner panel 2 needs to be separated from the outer panel 1 in the desupported finished product to generate the finished product to be manufactured using subtractive manufacturing. Typically, the inner panel 2 is separated by disassembling or detaching its connection from the outer panel 1. Once the inner panel 2 is separated from the outer panel 1, the next subtractive manufacturing process can proceed. For example, if the composite substrate is connected by screws or clamps, disassembling these connectors allows the inner panel 2 to be separated from the outer panel 1.

[0116] Specifically, a support component 500 is added to the finished product to be processed, effectively supporting the part 100 to be processed, the positioning point 200, and the connecting rod 400, making the overall structure more stable. During the disassembly of the finished product, an annealing operation is first performed to improve the machinability and stability of the product to be separated. Subsequently, removing the support component 500 facilitates the smooth disconnection of the support component 500 from the internal plate 2, thereby disassembling the internal plate 2 and generating the finished product to be manufactured using subtractive processing. This process ensures the stability and integrity of the product during disassembly, improving processing efficiency and finished product quality.

[0117] Reference Figure 5 Furthermore, based on the coordinates of the first and second points, the link generation parameters are determined. These parameters are used to generate the link 400 between the positioning point 200, the anchoring point 300, and the part. Following this step, the process also includes:

[0118] S104. Obtain the vertical distances between the parts, each link 400 and each positioning point 200 and the internal plate 2 respectively. Based on the vertical distances, determine the support generation parameters. The support generation parameters are used to generate support members 500 between the parts and the internal plate 2, between the link 400 and the internal plate 2, and between the positioning point 200 and the internal plate 2.

[0119] In this embodiment, by measuring the vertical distances between the parts, each link 400, and each positioning point 200 and the internal plate 2, support generation parameters can be determined for generating support members 500 between them. These support members 500 provide support during the subtractive manufacturing process, ensuring the stability of the parts, links 400, and positioning points 200 during processing. Based on these measurements, the position, shape, and size of the supports can be determined to effectively support the various parts during processing. For example, if the vertical distance between a part and the internal plate 2 is large, more or stronger supports are needed to ensure its stability.

[0120] Specifically, these support generation parameters will be used to generate support members 500 between the part and the internal plate 2, between the connecting rod 400 and the internal plate 2, and between the locating point 200 and the internal plate 2. Through these steps, a stable connection between the part, the connecting rod 400, and the locating point 200 can be ensured, and support and stability can be provided for subsequent processing.

[0121] Reference Figure 6-8 A composite substrate for the front and back sides of an additive manufacturing part includes an inner plate 2 and an outer plate 1. The inner side of the outer plate 1 is provided with a cavity 11 for nesting and cooperating with the inner plate 2. The side wall of the outer plate 1 is provided with a notch 12 for connecting the cavity 11 and the outer side of the outer plate 1. The outer plate 1 is provided with a first positioning member 13 protruding towards the cavity 11 for abutting against the bottom of the inner plate 2. The first positioning member 13 is slidably engaged with the inner plate 2 so that the inner plate 2 can move through the notch 12 in the direction of insertion or withdrawal from the cavity 11.

[0122] In this embodiment, the composite substrate design features a nested structure, allowing the inner panel 2 to be inserted into or removed through the cavity 11 of the outer panel 1. The notch 12 of the outer panel 1 allows movement of the inner panel 2, while the first positioning element 13 at the bottom of the inner panel 2 ensures a secure connection between the inner panel 2 and the outer panel 1. This design facilitates easy assembly and disassembly of the composite substrate during additive manufacturing, enabling processing of both sides of the part. For example, when processing is required, the inner panel 2 can be easily inserted into the cavity 11 of the outer panel 1, processed, and then removed.

[0123] Specifically, the design of this composite substrate enables the nesting and mating of the inner plate 2 and the outer plate 1. Through the cavity 11 and notch 12 structure of the outer plate 1, and the first positioning member 13 at the bottom of the inner plate 2, the inner plate 2 can be inserted into or removed from the cavity 11 of the outer plate 1 through the notch 12 when needed, thus achieving convenient and quick assembly and disassembly. This provides a more convenient process for processing both sides of additive manufacturing parts, improving production efficiency and manufacturing quality.

[0124] Reference Figure 8 Furthermore, there are two first positioning members 13, which are located on opposite sides of the cavity 11. The inner side of the outer plate 1 away from the notch 12 extends a second positioning member 14 for abutting against the bottom of the inner plate 2. The second positioning member 14 is at the same horizontal height as the first positioning member 13.

[0125] In this embodiment, the combined substrate design includes two first positioning members 13, located on opposite sides of the cavity 11, to ensure the stability of the inner plate 2 during insertion. Additionally, a second positioning member 14 extends from the inner side of the outer plate 1 away from the notch 12, at the same horizontal level as the first positioning members 13, to provide additional support and alignment, ensuring the correct positioning of the inner plate 2. This design allows the inner plate 2 to securely engage with the outer plate 1, maintaining its correct position for processing. For example, when the inner plate 2 is inserted into the cavity 11 of the outer plate 1, the first and second positioning members 14 together ensure a secure connection and correct alignment of the inner plate 2.

[0126] Specifically, the positioning stability of the internal plate 2 has been further enhanced, ensuring the accuracy and stability of the assembly and disassembly process of the combined substrate.

[0127] Reference Figure 7 , 8 Furthermore, the outer plate 1 has screw holes 15 on its opposite side walls that communicate with the cavity 11. The screw holes 15 are used for fasteners that are threaded into the screw holes 15 to pass through, so that the fasteners are pre-tightened to fit with the inner plate 2.

[0128] In this embodiment, threaded holes 15 communicating with the cavity 11 are provided on the opposite side walls of the outer plate 1. These threaded holes 15 allow fasteners to pass through for pre-tightening engagement with the inner plate 2. Through the threaded connection, the fasteners can firmly fix the inner plate 2, ensuring its stability during processing. For example, the threaded holes 15 can be used to install screws or bolts to firmly fix the inner plate 2 to the outer plate 1, ensuring that they will not move or loosen during processing.

[0129] Specifically, screw holes 15 are provided on the opposite side walls of the outer plate 1. These screw holes 15 are connected to the cavity 11 and are used to install threaded fasteners. By passing the fasteners through the screw holes 15, the inner plate 2 can be pre-tightened, thereby ensuring a stable fit between the inner plate 2 and the outer plate 1.

[0130] Reference Figure 8 Furthermore, the bottom of the inner plate 2 is provided with a groove 21 that slides and engages with the first positioning member 13. A positioning block 22 is provided at one end of the groove 21 near the notch 12. As the inner plate 2 moves in the direction of insertion into or extraction from the cavity 11, the positioning block 22 moves and engages with the side of the first positioning member 13 near the notch 12.

[0131] In this embodiment, the bottom of the inner plate 2 is provided with a groove 21 that slides and engages with the first positioning member 13, and a positioning block 22 is provided at one end of the groove 21 near the notch 12. When the inner plate 2 moves in the direction of insertion or withdrawal from the cavity 11, the positioning block 22 will abut and move against the side of the first positioning member 13 near the notch 12, thus ensuring the stability and accuracy of the inner plate 2 during insertion or withdrawal. For example, when the inner plate 2 is inserted into the cavity 11, the positioning block 22 will abut against the first positioning member 13, providing additional positioning support and ensuring that the inner plate 2 is accurately installed on the outer plate 1.

[0132] Specifically, the bottom of the inner plate 2 is designed with a groove 21 that slides and engages with the first positioning member 13. A positioning block 22 is provided at one end of the groove 21 near the notch 12. As the inner plate 2 moves in the direction of insertion into or withdrawal from the cavity 11, the positioning block 22 will fit against the side of the first positioning member 13 near the notch 12, thereby achieving movable positioning.

[0133] Reference Figure 7 Furthermore, the top surface of the outer plate 1 is level with the top surface of the inner plate 2.

[0134] In this embodiment, ensuring that the top surfaces of the outer plate 1 and the inner plate 2 are on the same horizontal plane has several advantages. First, this ensures the overall flatness and stability of the part, making it suitable for subsequent processing steps such as milling and grinding. Second, the top surfaces on the same horizontal plane help ensure the smooth progress of the 3D printing process because they provide a stable reference surface, which is conducive to uniform material deposition and improved print quality. Therefore, this design helps ensure the machining accuracy and quality of the part. For example, when subsequent processing is required on the top surface of the part, the top surfaces on the same horizontal plane can provide a stable working platform, making the processing operation more precise and efficient.

[0135] Specifically, ensure that the upper surfaces of the outer plate 1 and the inner plate 2 are on the same horizontal plane after being machined by milling and grinding machines, so as to ensure the smooth progress of 3D printing.

[0136] Furthermore, 1. An innovative composite substrate was designed, enabling machining of both the front and back sides of a part; 2. Positioning points were designed on the workpiece, so that even after it is cut from the substrate, the machine can still detect the positioning points in the actual model based on the position information of the specific area to be machined relative to the positioning points, and then, combined with the data obtained from the model, process the specific position; 3. Using this composite substrate, both sides of the part can be machined at once, which is efficient and precise.

[0137] Economic benefits and value:

[0138] 1. This composite substrate allows for simultaneous processing of both sides of the component, resulting in high efficiency and precision. 2. Previously, implant frameworks in dental prostheses could only be manufactured using subtractive manufacturing methods, employing square or round blocks of material machined on 4-axis or 5-axis CNC machines. This not only resulted in significant material waste but also presented high processing difficulty and long lead times, keeping implant framework prices consistently high. Additive manufacturing was not adopted because implant frameworks typically have 4-6 mounting interfaces requiring extremely high dimensional accuracy. Additively manufactured implant frameworks cannot achieve the required assembly precision for these mounting interfaces. Furthermore, the complex shape of implant frameworks currently lacks effective methods for positioning and processing. Our tooling fixture enables additive manufacturing of implant frameworks, while our method and designed tooling allow for subtractive manufacturing of the fixture itself. Specific areas of the implant framework are machined to meet assembly precision requirements, while simultaneously realizing the advantages of additive manufacturing: material savings.

[0139] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A processing method for both sides of an additively manufactured part, characterized in that, Applied to a composite substrate, the composite substrate comprising an outer plate and an inner plate detachably connected to the outer plate, the processing method comprising: Define the simulated printing structure; According to the simulated printing structure, a finished product to be processed is printed, wherein the finished product to be processed includes a part to be processed located on the inner plate, a positioning point located on the inner plate, an anchoring point located on the outer plate, and a connecting rod, the connecting rod being used to connect the part to be processed, the positioning point, and the anchoring point; Disassemble the internal panels of the finished product to be processed, so that the internal panels of the finished product to be processed are separated from the external panels of the finished product to be processed, thereby generating the finished product to be manufactured by material reduction; Based on the positioning points in the finished product to be subtracted, the front and back sides of the part to be processed in the finished product to be subtracted are manufactured to generate the processed product part, and then generate the finished product to be cut. The anchoring points, outer plates, and positioning points of the finished product to be cut are removed to obtain the processed product parts; The step of defining the simulated printing structure includes: Obtain part characteristic information and subtractive manufacturing requirement information, determine the coordinates of the first point, and use the first point coordinates to print and generate positioning points at the corresponding positions of the internal plates; Based on the coordinates of the first point, the coordinates of the second point are determined. The coordinates of the second point are used to print and generate anchor points at the corresponding positions on the outer plate. Based on the coordinates of the first point and the coordinates of the second point, the link generation parameters are determined. The link generation parameters are used to generate a link between the positioning point, the anchoring point and the part. The finished product to be processed also includes a support for connecting the internal plate and the positioning point, connecting rod and the part to be processed located above the internal plate; The step of disassembling the internal panels of the finished product to be processed, so as to separate the internal panels from the external panels of the finished product to be processed, and thereby generate the finished product to be manufactured by subtractive processing, includes: Perform an annealing operation on the finished product to be processed to generate a finished product to be separated; Remove the supporting components from the finished product to be separated to generate a finished product without supports; The internal panels of the unsupported finished product are disassembled to separate the internal panels from the external panels, thereby generating the finished product to be manufactured by material reduction.

2. The processing method for both sides of an additively manufactured part according to claim 1, characterized in that, The step of removing the anchoring point, the outer plate, and the positioning point from the finished product to be cut, thereby obtaining the processed product part, includes: Wire cutting is used to cut the anchor points and the outer plates of the finished product to be cut, in order to generate the finished product to be precision cut; The connecting rods around the product parts in the finished product to be precision cut are cut by wire cutting to remove anchor points and positioning points, thereby generating the finished product to be polished; The connecting rod in the finished product to be polished is removed by grinding to obtain the finished product part.

3. The processing method for both sides of an additively manufactured part according to claim 1, characterized in that, After the step of determining the link generation parameters based on the first point coordinates and the second point coordinates, wherein the link generation parameters are used to generate a link between the positioning point, the anchoring point, and the part, the method further includes: Obtain the vertical distances between the parts, each link, and each positioning point and the internal plate. Based on the vertical distances, determine the support generation parameters. The support generation parameters are used to generate support components between the parts and the internal plate, the links and the internal plate, and the positioning points and the internal plate.

4. A composite substrate for both sides of an additively manufactured part, characterized in that, Using the processing method for the front and back sides of an additively manufactured part as described in any one of claims 1-3, the composite substrate includes an inner plate (2) and an outer plate (1). The inner side of the outer plate (1) is provided with a cavity (11) for nesting and cooperating with the inner plate (2). The sidewall of the outer plate (1) is provided with a notch (12) for communicating the cavity (11) and the outer side of the outer plate (1). The outer plate (1) is provided with a first positioning member (13) protruding towards the cavity (11) for abutting against the bottom of the inner plate (2). The first positioning member (13) is slidably engaged with the inner plate (2) so that the inner plate (2) can move through the notch (12) in the direction of insertion or extraction from the cavity (11).

5. A combined substrate for both sides of an additively manufactured part according to claim 4, characterized in that, There are two first positioning members (13), which are located on opposite sides of the cavity (11). The inner side of the outer plate (1) away from the notch (12) extends a second positioning member (14) for abutting against the bottom of the inner plate (2). The second positioning member (14) is at the same horizontal height as the first positioning member (13).

6. A combined substrate for both sides of an additively manufactured part according to claim 4, characterized in that, The outer plate (1) has screw holes (15) on its opposite side walls that communicate with the cavity (11). The screw holes (15) penetrate the side walls along the direction close to the cavity (11) to connect the cavity (11) and the outer plate (1), and are used for fasteners that are threaded to the screw holes (15) to pass through so that the fasteners are pre-tightly fitted with the inner plate (2).

7. A combined substrate for both sides of an additively manufactured part according to claim 4, characterized in that, The bottom of the inner plate (2) is provided with a sliding groove (21) that slides with the first positioning member (13). The end of the sliding groove (21) near the notch (12) is provided with a positioning block (22). As the inner plate (2) moves in the direction of insertion into or withdrawal from the cavity (11), the positioning block (22) moves and fits against the side of the first positioning member (13) near the notch (12).

8. A combined substrate for both sides of an additively manufactured part according to claim 4, characterized in that, The top surface of the outer plate (1) is flush with the top surface of the inner plate (2).

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