FDM mask-electrochemical deposition composite 3D printing processing device and method

Abstract

The invention discloses an FDM mask-electrochemical deposition composite 3D printing processing device and method. The FDM mask-electrochemical deposition composite 3D printing processing device comprises an FDM mask module, an electrochemical deposition module and a double-station rotary table, and the left-right direction is the X direction; the FDM mask module is an X / Y / Z direction three-dimensional motion platform located on the right side of the marble platform on the machine tool base; the electrochemical deposition module is a two-dimensional motion platform located on the left side of the marble platform in the X / Y direction, a Y-direction sliding block left side connecting beam is fixedly connected with a left side fixing base, and an output end is fixedly installed on the left side fixing base. The workpiece platform is controlled by the numerical control rotary table to rotate. The method comprises the following steps: firstly, printing a resin mask layer with a certain pattern by utilizing a fuse accumulation forming technology, then printing a metal layer of the phase change cooling component on a hollow part of the mask layer by utilizing an electrochemical deposition technology, continuously and alternately repeating the mask and deposition processes until layered printing of the phase change cooling component is completed, and finally, separating the resin mask layer from the metal component to obtain the phase change cooling component. And high-precision, high-strength and long-service-life printing is realized.

Description

Technical Field

[0001] The invention relates to 3D printing, and in particular to an FDM mask-electrochemical deposition composite 3D printing processing device. Background Art

[0002] With the continuous development of advanced equipment manufacturing industries such as high-power integrated circuits and high-power lasers, the demand for efficient cooling technology is increasing. Microchannel phase change cooling technology is considered to be the key to solving related technical bottlenecks. The key to the microchannel phase change cooling system lies in its tiny channel size and precise closed channel structure. However, such a microscale and complex structural design poses great challenges to traditional mechanical processing technology. Traditional processing methods are difficult to accurately control the size and shape of the channel at the micron level, and it is difficult to handle the processing and manufacturing of closed microchannels. To overcome these challenges, research and industry are currently exploring more advanced micromachining technologies, such as electrochemical deposition processing technology and 3D printing technology. These high-precision and high-efficiency micromachining technologies can not only achieve precise manufacturing of microchannel structures, but also improve the performance of phase change cooling systems through fine design optimization; 3D printing technology, also known as additive manufacturing technology, builds three-dimensional objects by stacking materials layer by layer. This technology breaks the limitations of traditional manufacturing technology. It has significant advantages in speed, flexibility and customization, and has become one of the main technologies for manufacturing phase change cooling systems. Especially in the precise manufacturing of microchannels, 3D printing technology can achieve high precision and complex structures that are difficult to achieve with traditional processing, greatly improving the design flexibility and heat exchange efficiency of the cooling system. Although 3D printing technology has the above advantages in the field of phase change cooling, it also has some limitations and challenges. Although 3D printing can manufacture complex microchannel structures, material deposition during the printing process may introduce surface roughness and affect cooling performance. Summary of the invention

[0003] In order to overcome the problems of insufficient precision, insufficient strength, poor bonding force, etc. in 3D printing technology, the present invention invents a composite 3D printing processing device and method of FDM mask-electrochemical deposition. First, a resin mask layer of a certain pattern is printed using fused deposition forming technology, and then a metal layer of phase change cooling enthusiasm is printed on the hollow part of the mask layer using electrochemical deposition technology. The masking and deposition processes are repeated alternately until the phase change cooling enthusiasm is printed in layers, and finally the resin mask layer and the metal enthusiasm are separated. This technology can achieve high-precision, high-strength, and long-life printing, and can also control the properties of the printed material by adjusting the electrochemical parameters.

[0004] The technical solution adopted by the present invention is: an FDM mask-electrochemical deposition composite 3D printing processing device, including an FDM mask module, an electrochemical deposition module, and a double-station turntable, with the left and right directions being the X direction; The FDM mask module is a three-dimensional motion platform (8) in the X / Y / Z direction located on the right side of the marble platform (2) on the machine tool base. The Z-direction slider is connected to the right fixing seat via the right connecting beam, and two parallel nozzles are fixedly mounted on the right fixing seat. The upper ends of the two parallel nozzles are material inlets (23), and the lower ends are composed of an electric heating device and a nozzle (21); The electrochemical deposition module is a two-dimensional motion platform (3) in the X / Y direction located on the left side of the marble platform (2). The left connecting beam (10) of the Y-direction slider is fixedly connected to the left fixed seat. The output end is fixedly installed on the left fixed seat. The top of the output end is an electroforming liquid inlet (5), and the bottom (7) is an electroforming liquid nozzle. The double-station turntable is located between the two-dimensional motion platform and the three-dimensional motion platform, and comprises a double-station workpiece platform (12) with double protruding heads. The workpiece platform is controlled to rotate by a numerical control turntable (26).

[0005] On the basis of the above scheme, as a preferred embodiment, a machine tool cover, a left partition and a right partition are installed on the machine tool base (1), and the left and right partitions divide the space covered by the machine tool cover into a left non-processing area, a middle processing area and a right non-processing area. The three-dimensional motion platform is located in the right non-processing area, the two-dimensional motion platform is located in the left non-processing area, the nozzle and the electroforming liquid nozzle are located in the middle processing area, the left connecting beam passes through the left through hole of the left partition, and the right connecting beam passes through the right through hole on the right partition. One end of the conical protective cover is connected to the corresponding left partition and right partition, and the other end is connected to the corresponding left fixed seat and right fixed seat.

[0006] Based on the above solution, preferably, a sliding door (17) is provided on the machine tool cover corresponding to the intermediate processing area.

[0007] Based on the above solution, preferably, the sliding door (17) slides between the processing area and the non-processing area via guide rails at the top and bottom of the machine tool housing.

[0008] Based on the above scheme, as a preference, the conical protective cover includes a side connecting plate (603) for fixed connection with the connecting plate and the partition, and a high temperature resistant sealing ring (602) arranged between the side connecting plate and the corresponding connecting plate and the partition. The two side connecting plates are connected by a sealing leather (601) and have a ventilation hole (604) at the lower end.

[0009] Based on the above solution, preferably, the CNC turntable comprises a box body (24) fixed on the marble platform (2), a box cover (25) fixed on the box body, and a main shaft installed in the box body and passing through the box cover, and the main shaft and the box body are sealed and connected by a sealing device.

[0010] On the basis of the above scheme, as a preferred embodiment, the inner circumference of the stainless steel box cover (25) is provided with a milling groove, a rubber ring is installed in the milling groove, the sealing nylon sleeve is fixed to the box cover by bolts and the rubber ring is pressed to form a seal, the sealing nylon sleeve is sleeved on the main shaft and the inner ring thereof is sealed with the main shaft by a rubber sealing ring.

[0011] A composite 3D printing processing method of FDM mask-electrochemical deposition is used for processing by a processing device. In the first stage, a workpiece base plate is initially located on an FDM mask module, and a protruding end of a workpiece platform (12) is used as a mounting and positioning reference for the overall part to achieve accurate positioning and correction of the part and reduce errors. The main control program panel of the three-dimensional motion platform is opened, and a Z-direction reciprocating motion device is adjusted to set an initial processing gap between the nozzle and the cathode workpiece; processing parameters are set on the main control panel to perform 3D printing; at this time, an electric heating device (20) heats the nozzle position alone to melt the resin material, and a first insulating mask layer is formed on the workpiece base plate; The second stage: the workpiece is rotated from the FDM mask module to the electrochemical deposition module through the workpiece platform (12), the anode and cathode are connected to the positive and negative poles of the DC power supply respectively, the nozzle of the electrochemical deposition module is connected to the positive pole of the power supply, which serves as the workpiece anode, and the work platform is connected to the negative pole of the power supply, which serves as the tool cathode. A pulse power supply is connected between the cathode and the anode, and a certain voltage is applied. The electroforming liquid pump continuously transports the electroforming liquid to the processing area, and the electroforming liquid carries the processed products back to the electrolytic cell. A loop is formed by the high-concentration electroforming liquid flowing in the micro-area between the anode tip and the cathode substrate. The reduced metal ions in the electroforming liquid are "confined" to the micro-area corresponding to the anode tip, forming a localized precipitation, and generating a three-dimensional entity layer by layer from bottom to top; The positioning reference and initial processing gap are set through the main control program panel of the two-dimensional motion platform, and then the processing parameters are set through the active panel to adjust the Y-axis reciprocating scanning to form a localized precipitation; at this time, the electroforming liquid flows in at high speed through the water inlet pipe and flows out at high speed through the water outlet (7), and then the phase change cooling enthusiastic metal layer is printed on the hollow part of the mask layer using electrochemical deposition technology; After the first layer of phase change cooling heat processing, the workpiece platform (12) is pulled by the CNC turntable (26), and the masking and deposition processes are continuously repeated alternately until the phase change cooling heat layer printing is completed, and the accuracy of the workpiece is improved by the electrochemical deposition technology; After one layer of printing is completed, the anode will be raised by a layer thickness, and the next layer will be printed on the basis of the previous deposition layer. With the reciprocating scanning of the anode, the deposition layers will be stacked from bottom to top until the height of the printed plane microstructure reaches the set value. The third stage: after the last layer of reciprocating processing, the dual processing state of resin mask and electrochemical deposition is completed, and a workpiece structure with a resin mask plate is obtained; at this time, the main control program panel of the three-dimensional motion platform is opened, the processing parameters are set, the nozzle (21) is replaced, the position of the two parallel nozzles is moved, and the conductive silver glue material is used to replace the original resin material to print a conductive silver glue layer, and then electrochemical deposition is performed to print the conductive silver glue to melt the resin material to form a hollow state; Finally, the encapsulation layer is printed to form a closed microchannel structure, and then the final molded workpiece is obtained.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The composite 3D printing method of spinneret mask-electrochemical deposition proposed in this patent first uses the fused deposition forming technology to print a resin mask layer with a certain pattern, and then uses the electrochemical deposition technology to print the metal layer of phase change cooling enthusiasm in the hollow part of the mask layer, and continuously repeats the mask and deposition process alternately until the phase change cooling enthusiasm is printed in layers, and finally separates the resin mask layer and the metal enthusiasm. This technology can achieve high-precision, high-strength, and high-life precision printing, and can also control the properties of the printed material by adjusting the electrochemical parameters; The composite 3D printing processing method of spinning mask-electrochemical deposition proposed in this patent uses a double-station turntable to transfer the workpiece position by rotation, so as to realize the simultaneous processing of FDM mask and electrochemical deposition, which ensures the processing accuracy and efficiency, reduces the error of the disassembly and assembly process, and shortens the processing process; The composite 3D printing processing device and method of the spinneret mask-electrochemical deposition proposed in this patent uses a dual nozzle design to install the resin nozzle and the conductive silver glue nozzle in one piece. After the workpiece molding process is completed, the sticking between the mask plate and the workpiece is avoided. The clamping process is reduced, the repetitive error is reduced, and the processing efficiency and the surface quality of the workpiece are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the structure without the machine tool cover; Figure 3 yes Figure 2 Schematic diagram after removing the left and right partitions; Figure 4 yes Figure 3 Schematic diagram of the structure without the workpiece platform; Figure 5 It is a schematic diagram of the structure of the conical protective cover; Figure 6 This is a schematic diagram of the matching between the sealing nylon sleeve and the box cover; Figure 7 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0014] The present invention will be further described below by way of examples, but the scope of the present invention is not limited thereto.

[0015] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0016] like Figure 1-7 As shown, a composite 3D printing processing device of FDM mask-electrochemical deposition includes an FDM mask module, an electrochemical deposition module, and a double-station turntable, and the left and right directions are X directions; The FDM mask module is a three-dimensional motion platform 8 in the X / Y / Z direction located on the right side of the marble platform 2 on the machine tool base. The Z-direction slider is connected to the right fixing seat 9 through the right connecting beam 4, and two parallel nozzles are fixedly installed on the right fixing seat. The upper ends of the two parallel nozzles are material inlets 23, and the lower ends are composed of an electric heating device and a nozzle 21; The electrochemical deposition module is a two-dimensional motion platform 3 in the X / Y direction located on the left side of the marble platform 2. The left connecting beam 10 of the Y-direction slider is fixedly connected to the left fixed seat 11. The output end is fixedly installed on the left fixed seat. The top of the output end is the electroforming liquid inlet 5, and the bottom 7 is the electroforming liquid nozzle. The double-station turntable is located between the two-dimensional motion platform and the three-dimensional motion platform, and includes a double-station workpiece platform 12 with double protruding heads. The workpiece platform is controlled to rotate by a CNC turntable 26 .

[0017] A machine tool cover 12, a left partition 13, and a right partition 14 are installed on the machine tool base 1. The left and right partitions divide the space covered by the machine tool cover into a left non-processing area 15, a middle processing area 16, and a right non-processing area 18. The three-dimensional motion platform is located in the right non-processing area, the two-dimensional motion platform is located in the left non-processing area, the nozzle and the electroplating liquid nozzle are located in the middle processing area, the left connecting beam passes through the left through hole 19 of the left partition, and the right connecting beam passes through the right through hole 22 on the right partition. One end of the conical protective cover is connected to the corresponding left partition and right partition, and the other end is connected to the corresponding left fixed seat and right fixed seat.

[0018] The processing area and the non-processing area are separated by the left and right partitions to avoid mutual interference between the two working conditions during processing.

[0019] A sliding door 17 is provided on the machine tool outer cover corresponding to the middle processing area.

[0020] The sliding door 17 slides between the processing area and the non-processing area through the guide rails at the top and bottom of the machine tool housing.

[0021] The conical protective cover 6 includes a side connecting plate 603 for fixed connection with the connecting plate and the partition, and a high temperature resistant sealing ring 602 arranged between the side connecting plate and the corresponding connecting plate and the partition. The two side connecting plates are connected by a sealing leather 601 and have a ventilation hole 604 at the lower end.

[0022] The numerical control turntable comprises a box body 24 fixed on a marble platform, a box cover 25 fixed on the box body, and a main shaft 27 installed in the box body and passing through the box cover. The main shaft and the box body are sealed and connected by a sealing device.

[0023] The inner circumference of the stainless steel box cover is provided with a milling groove, in which a rubber ring 28 is installed. The sealing nylon sleeve 26 is fixed to the box cover by bolts 37 and gaskets 38 and the rubber ring is pressed to form a seal. The sealing nylon sleeve is sleeved on the main shaft and its inner ring is sealed with the main shaft by a rubber sealing ring 29.

[0024] A composite 3D printing method of FDM mask-electrochemical deposition, using a processing device for processing, Electrochemical deposition uses the transfer properties of micro-region electroforming liquid, and uses microelectrodes to induce the ions in the electroforming liquid to accumulate layer by layer at the atomic scale in the micro-region. It can realize the formation of complex micro-nano structures of metals such as copper, nickel, and gold in a low-demand environment; it has high deposition localization, free choice of deposition position on the substrate, diversified forming size and shape, low consumables cost, dense material and precision forming. During the processing, the electroforming liquid flows through the processing gap to provide a medium for the electrochemical reaction. With the continuous feeding of the tool cathode, the workpiece shape that meets the requirements is finally processed. In order to achieve geometric size and geometric shape processing, some specific process conditions must also be met, such as maintaining a very small processing gap between the cathode and the anode, usually between 0.1mm-1mm.

[0025] The first stage: the workpiece base plate is initially located in the FDM mask module, and the protruding end of the workpiece platform 12 is used as the installation and positioning reference of the whole part to achieve accurate positioning and correction of the part and reduce errors. The main control program panel of the three-dimensional motion platform is opened, the Z-axis reciprocating motion device is adjusted, and the initial processing gap between the nozzle and the cathode workpiece is set; the processing parameters are set on the main control panel to perform 3D printing; at this time, the electric heating device 20 heats the nozzle position alone to melt the resin material and perform the first insulating mask layer on the workpiece base plate; The second stage: the workpiece is rotated from the FDM mask module to the electrochemical deposition module through the workpiece platform 12. The anode and cathode are connected to the positive and negative poles of the DC power supply respectively. The nozzle of the electrochemical deposition module is connected to the positive pole of the power supply as the workpiece anode. The work platform is connected to the negative pole of the power supply as the tool cathode. A pulse power supply is connected between the cathode and the anode. A certain voltage is applied. The electroforming liquid pump continuously transports the electroforming liquid to the processing area, and the electroforming liquid carries the processed products back to the electrolytic cell. A loop is formed by the high-concentration electroforming liquid flowing in the micro-area between the anode tip and the cathode substrate. The reduced metal ions in the electroforming liquid are "confined" to the micro-area corresponding to the anode tip, forming a localized precipitation, and generating a three-dimensional entity layer by layer from bottom to top; The positioning reference and initial processing gap are set through the main control program panel of the two-dimensional motion platform, and then the processing parameters are set through the active panel to adjust the Y-axis reciprocating scanning to form a localized precipitation; at this time, the electroforming liquid flows in at high speed through the water inlet pipe and flows out at high speed through the water outlet (7), and then the phase change cooling enthusiastic metal layer is printed on the hollow part of the mask layer using electrochemical deposition technology; After the first phase change cooling heat forming process, the workpiece platform 12 is pulled by the CNC turntable 26, and the masking and deposition processes are repeated alternately until the phase change cooling heat layer printing is completed, and the accuracy of the workpiece is improved by the electrochemical deposition technology; After one layer of printing is completed, the anode will be raised by a layer thickness, and the next layer will be printed on the basis of the previous deposition layer. With the reciprocating scanning of the anode, the deposition layers will be stacked from bottom to top until the height of the printed plane microstructure reaches the set value. The third stage: after the last layer of reciprocating processing, the dual processing state of resin mask and electrochemical deposition is completed, and a workpiece structure with a resin mask plate is obtained; at this time, the main control program panel of the three-dimensional motion platform is opened, the processing parameters are set, the nozzle 21 is replaced, the positions of the two parallel nozzles are moved, and the conductive silver glue material is used to replace the original resin material to print out the conductive silver glue layer, and then the electrochemical deposition is performed to print the conductive silver glue to melt the resin material to form a hollow state; Finally, the encapsulation layer is printed to form a closed microchannel structure, and then the final molded workpiece is obtained.

[0026] It should be noted that the embodiments described above are only used to explain the present invention and do not constitute any limitation to the present invention. The present invention has been described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory words, rather than restrictive words. The present invention may be modified as specified within the scope of the claims of the present invention, and the present invention may be revised without departing from the scope and spirit of the present invention. Although the present invention described therein relates to specific methods, materials and embodiments, it does not mean that the present invention is limited to the specific examples disclosed therein, on the contrary, the present invention can be extended to all other methods and applications with the same functions.

Claims

1. A composite 3D printing processing device of FDM mask-electrochemical deposition, characterized in that: It includes FDM mask module, electrochemical deposition module, double-station turntable, and the left and right directions are X-direction; The FDM mask module is a three-dimensional motion platform (8) in the X / Y / Z direction located on the right side of the marble platform (2) on the machine tool base. The Z-direction slider is connected to the right fixing seat via the right connecting beam, and two parallel nozzles are fixedly mounted on the right fixing seat. The upper ends of the two parallel nozzles are material inlets (23), and the lower ends are composed of an electric heating device and a nozzle (21); The electrochemical deposition module is a two-dimensional motion platform (3) in the X / Y direction located on the left side of the marble platform (2). The left connecting beam (10) of the Y-direction slider is fixedly connected to the left fixed seat. The output end is fixedly installed on the left fixed seat. The top of the output end is an electroforming liquid inlet (5), and the bottom (7) is an electroforming liquid nozzle. The double-station turntable is located between the two-dimensional motion platform and the three-dimensional motion platform, and comprises a double-station workpiece platform (12) with double protruding heads. The workpiece platform is controlled to rotate by a numerical control turntable (26).

2. The FDM mask-electrochemical deposition composite 3D printing processing device according to claim 1, characterized in that: A machine tool cover, a left partition plate, and a right partition plate are installed on the machine tool base (1). The left and right partition plates divide the space covered by the machine tool cover into a left non-processing area, a middle processing area, and a right non-processing area. The three-dimensional motion platform is located in the right non-processing area, the two-dimensional motion platform is located in the left non-processing area, the nozzle and the electroforming liquid nozzle are located in the middle processing area, the left connecting beam passes through the left through hole of the left partition plate, and the right connecting beam passes through the right through hole on the right partition plate. One end of the conical protective cover is connected to the corresponding left partition plate and the right partition plate, and the other end is connected to the corresponding left fixed seat and the right fixed seat.

3. The FDM mask-electrochemical deposition composite 3D printing processing device according to claim 1, characterized in that: A sliding door (17) is provided on the machine tool outer cover corresponding to the middle processing area.

4. The FDM mask-electrochemical deposition composite 3D printing processing device according to claim 1, characterized in that: The sliding door (17) slides between the processing area and the non-processing area via guide rails at the top and bottom of the machine tool housing.

5. The FDM mask-electrochemical deposition composite 3D printing processing device according to claim 2, characterized in that: The conical protective cover comprises a side connecting plate (603) for fixedly connecting to the connecting plate and the partition plate, and a high temperature resistant sealing ring (602) arranged between the side connecting plate and the corresponding connecting plate and the partition plate. The two side connecting plates are connected by a sealing leather (601) and have a ventilation hole (604) at the lower end.

6. The FDM mask-electrochemical deposition composite 3D printing processing device according to claim 1, characterized in that: The numerically controlled turntable comprises a box body (24) fixed on a marble platform (2), a box cover (25) fixed on the box body, and a main shaft installed in the box body and passing through the box cover, wherein the main shaft and the box body are sealed and connected via a sealing device.

7. The FDM mask-electrochemical deposition composite 3D printing processing device according to claim 6, characterized in that: The inner circumference of the stainless steel box cover (25) is provided with a milling groove, a rubber ring is installed in the milling groove, a sealing nylon sleeve is fixed to the box cover by bolts and the rubber ring is pressed to form a seal, the sealing nylon sleeve is sleeved on the main shaft and the inner ring thereof is sealed with the main shaft by a rubber sealing ring.

8. A composite 3D printing method of FDM mask-electrochemical deposition, using the processing device according to claims 1-7 for processing, characterized in that: The first stage: the workpiece base plate is initially located on the FDM mask module, and the protruding end of the workpiece platform (12) is used as the installation and positioning reference of the whole part to achieve accurate positioning and correction of the part and reduce errors. The main control program panel of the three-dimensional motion platform is opened, the Z-axis reciprocating motion device is adjusted, and the initial processing gap between the nozzle and the cathode workpiece is set; the processing parameters are set on the main control panel to perform 3D printing; at this time, the electric heating device (20) heats the nozzle position alone to melt the resin material, and the first insulating mask layer is applied to the workpiece base plate; The second stage: the workpiece is rotated from the FDM mask module to the electrochemical deposition module through the workpiece platform (12), the anode and cathode are connected to the positive and negative poles of the DC power supply respectively, the nozzle of the electrochemical deposition module is connected to the positive pole of the power supply, which serves as the workpiece anode, and the work platform is connected to the negative pole of the power supply, which serves as the tool cathode. A pulse power supply is connected between the cathode and the anode, and a certain voltage is applied. The electroforming liquid pump continuously transports the electroforming liquid to the processing area, and the electroforming liquid carries the processed products back to the electrolytic cell. A loop is formed by the high-concentration electroforming liquid flowing in the micro-area between the anode tip and the cathode substrate. The reduced metal ions in the electroforming liquid are "confined" to the micro-area corresponding to the anode tip, forming a localized precipitation, and generating a three-dimensional entity layer by layer from bottom to top; The positioning reference and initial processing gap are set through the main control program panel of the two-dimensional motion platform, and then the processing parameters are set through the active panel to adjust the Y-axis reciprocating scanning to form a localized precipitation; at this time, the electroforming liquid flows in at high speed through the water inlet pipe and flows out at high speed through the water outlet (7), and then the phase change cooling enthusiastic metal layer is printed on the hollow part of the mask layer using electrochemical deposition technology; After the first layer of phase change cooling heat processing, the workpiece platform (12) is pulled by the CNC turntable (26), and the masking and deposition processes are continuously repeated alternately until the phase change cooling heat layer printing is completed, and the accuracy of the workpiece is improved by the electrochemical deposition technology; After one layer of printing is completed, the anode will be raised by a layer thickness, and the next layer will be printed on the basis of the previous deposition layer. With the reciprocating scanning of the anode, the deposition layers will be stacked from bottom to top until the height of the printed plane microstructure reaches the set value. The third stage: after the last layer of reciprocating processing, the dual processing state of resin mask and electrochemical deposition is completed, and a workpiece structure with a resin mask plate is obtained; at this time, the main control program panel of the three-dimensional motion platform is opened, the processing parameters are set, the nozzle (21) is replaced, the position of the two parallel nozzles is moved, and the conductive silver glue material is used to replace the original resin material to print a conductive silver glue layer, and then electrochemical deposition is performed to print the conductive silver glue to melt the resin material to form a hollow state; Finally, the encapsulation layer is printed to form a closed microchannel structure, and then the final molded workpiece is obtained.

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