Wire feeding and material adding device, control method and base material processing equipment

Abstract

The embodiment of the invention provides a wire feeding and material adding device, a control method of the wire feeding and material adding device and base material machining equipment, and relates to the technical field of base material machining equipment manufacturing, the wire feeding and material adding device comprises a static shaft shoulder, a wire feeding hole, a material adding opening and a stirring cavity are formed, the material adding opening and the wire feeding hole are communicated with the stirring cavity, and the wire feeding hole is used for conveying wires to the stirring cavity; the stirring head is provided with a feeding channel used for guiding the bars to the material adding opening, and the stirring head is rotatably installed in the stirring cavity so as to drive the wires to be conveyed to the material adding opening; and the axial feeding piece is used for conveying the bars into the feeding channel and is suitable for driving the bars to selectively rotate relative to the stirring head. According to the wire feeding and material adding device, an instant cavity formed in the end of the stirring head can be filled, the defects of interlayer weak combination, key holes and the like are avoided, the structural performance of a deposited structure is improved, the consistency of the performance of the deposited structure is guaranteed, the reliability of conveying and combination of bars and wires can be guaranteed, the material adding reliability is guaranteed, and the using effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of substrate processing equipment manufacturing, in particular to a wire feeding additive manufacturing device, a control method of the wire feeding additive manufacturing device and a substrate processing equipment. BACKGROUND

[0002] Friction stir additive manufacturing is a solid-phase additive manufacturing method, which uses friction heat and plastic deformation to make material plastic soften by stirring and friction between high-speed rotating additive material and substrate or deposited layer, and then the plasticized material is accumulated layer by layer during the movement of the stirring head. The manufacturing process is always below the melting point of the material, which can effectively avoid metallurgical defects such as pores, thermal cracks and element segregation.

[0003] Among them, continuous wire feeding friction stir additive manufacturing uses metal wire as raw material. The metal wire can go through multiple stages such as shearing, plasticizing and deposition. The stirring head continuously feeds the plasticized wire into the plastic softening zone while moving, so that it is stirred and mixed with the substrate or deposited material and realizes solidification bonding, so as to improve material utilization and manufacturing flexibility, and increase the application range. However, in order to increase the stirring friction efficiency, the bottom end of the additive stirring head used in wire feeding additive manufacturing is usually provided with a stirring needle. When the stirring needle rotates at high speed, a transient cavity is formed at the tip of the needle. The laterally fed wire cannot enter this area, which will produce defects such as weak interlayer bonding, which will endanger the structural performance and leave spoon hole defects, so there is room for improvement. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a wire feeding additive manufacturing device, which can ensure forming efficiency, avoid defects such as weak interlayer bonding and spoon hole, improve the structural performance of the deposited structure, ensure the consistency of its performance, and ensure the reliability of the combination of rod and wire feeding.

[0005] The wire feeding additive manufacturing device according to the embodiment of the present application comprises: a static shaft shoulder, which is formed with a wire feeding hole, an additive port and a stirring cavity, the additive port and the wire feeding hole are respectively communicated with the stirring cavity, and the wire feeding hole is used for feeding wire to the stirring cavity; a stirring head, which is formed with a feeding channel for guiding the rod to the additive port, and the stirring head is rotatably installed in the stirring cavity to drive the wire to be fed to the additive port; and an axial feeding member, which is used for feeding the rod into the feeding channel, and the axial feeding member is adapted to selectively rotate the rod relative to the stirring head.

[0006] According to the wire feeding additive device, the feeding channel is arranged on the stirring head, so that the stirring head can feed the rod material to the additive port through the feeding channel while feeding the wire material to the additive port, and the rod material can rub against the base material or the deposited material through the additive port when the stirring head advances, so that the instantaneous cavity formed at the end of the stirring head can be filled, the central area of the base material or the deposited material can be continuously forged while ensuring the forming efficiency and the sufficient material mixing, the defects such as weak interlayer bonding and spoon hole can be avoided, the structural performance of the deposited structure is improved, the consistency of the performance is ensured, the rotating speed of the rod material and the rotating speed of the stirring head can be set to be different through the axial feeding member, so that the reliability of the rod material feeding and the reliability of the combination of the rod material and the wire material can be ensured to ensure the additive reliability, the use effect is better, and the application range is wider.

[0007] According to the wire feeding additive device, the feeding channel is arranged on the stirring head, so that the stirring head can feed the rod material to the additive port through the feeding channel while feeding the wire material to the additive port, and the rod material can rub against the base material or the deposited material through the additive port when the stirring head advances, so that the instantaneous cavity formed at the end of the stirring head can be filled, the central area of the base material or the deposited material can be continuously forged while ensuring the forming efficiency and the sufficient material mixing, the defects such as weak interlayer bonding and spoon hole can be avoided, the structural performance of the deposited structure is improved, the consistency of the performance is ensured, the rotating speed of the rod material and the rotating speed of the stirring head can be set to be different through the axial feeding member, so that the reliability of the rod material feeding and the reliability of the combination of the rod material and the wire material can be ensured to ensure the additive reliability, the use effect is better, and the application range is wider.

[0008] According to the wire feeding additive device, the feeding channel is arranged on the stirring head, so that the stirring head can feed the rod material to the additive port through the feeding channel while feeding the wire material to the additive port, and the rod material can rub against the base material or the deposited material through the additive port when the stirring head advances, so that the instantaneous cavity formed at the end of the stirring head can be filled, the central area of the base material or the deposited material can be continuously forged while ensuring the forming efficiency and the sufficient material mixing, the defects such as weak interlayer bonding and spoon hole can be avoided, the structural performance of the deposited structure is improved, the consistency of the performance is ensured, the rotating speed of the rod material and the rotating speed of the stirring head can be set to be different through the axial feeding member, so that the reliability of the rod material feeding and the reliability of the combination of the rod material and the wire material can be ensured to ensure the additive reliability, the use effect is better, and the application range is wider.

[0009] According to the wire feeding additive device, the feeding channel is arranged on the stirring head, so that the stirring head can feed the rod material to the additive port through the feeding channel while feeding the wire material to the additive port, and the rod material can rub against the base material or the deposited material through the additive port when the stirring head advances, so that the instantaneous cavity formed at the end of the stirring head can be filled, the central area of the base material or the deposited material can be continuously forged while ensuring the forming efficiency and the sufficient material mixing, the defects such as weak interlayer bonding and spoon hole can be avoided, the structural performance of the deposited structure is improved, the consistency of the performance is ensured, the rotating speed of the rod material and the rotating speed of the stirring head can be set to be different through the axial feeding member, so that the reliability of the rod material feeding and the reliability of the combination of the rod material and the wire material can be ensured to ensure the additive reliability, the use effect is better, and the application range is wider.

[0010] According to the wire feeding additive device, the feeding channel is arranged on the stirring head, so that the stirring head can feed the rod material to the additive port through the feeding channel while feeding the wire material to the additive port, and the rod material can rub against the base material or the deposited material through the additive port when the stirring head advances, so that the instantaneous cavity formed at the end of the stirring head can be filled, the central area of the base material or the deposited material can be continuously forged while ensuring the forming efficiency and the sufficient material mixing, the defects such as weak interlayer bonding and spoon hole can be avoided, the structural performance of the deposited structure is improved, the consistency of the performance is ensured, the rotating speed of the rod material and the rotating speed of the stirring head can be set to be different through the axial feeding member, so that the reliability of the rod material feeding and the reliability of the combination of the rod material and the wire material can be ensured to ensure the additive reliability, the use effect is better, and the application range is wider.

[0011] According to the wire feeding additive device, the feeding channel is arranged on the stirring head, so that the stirring head can feed the rod material to the additive port through the feeding channel while feeding the wire material to the additive port, and the rod material can rub against the base material or the deposited material through the additive port when the stirring head advances, so that the instantaneous cavity formed at the end of the stirring head can be filled, the central area of the base material or the deposited material can be continuously forged while ensuring the forming efficiency and the sufficient material mixing, the defects such as weak interlayer bonding and spoon hole can be avoided, the structural performance of the deposited structure is improved, the consistency of the performance is ensured, the rotating speed of the rod material and the rotating speed of the stirring head can be set to be different through the axial feeding member, so that the reliability of the rod material feeding and the reliability of the combination of the rod material and the wire material can be ensured to ensure the additive reliability, the use effect is better, and the application range is wider.

[0012] ​According to some embodiments of the additive manufacturing apparatus for feeding filaments, the lateral feeding member includes at least two second feeding rollers, a second guide space is formed between the at least two second feeding rollers, each second feeding roller abuts against the outer peripheral wall of the filament, and the second feeding rollers are adapted to drive the filament to move from the second guide space to the feeding hole.

[0013] According to some embodiments of the present invention, the filament feeding additive manufacturing device further includes a main shaft, the main shaft being mounted above the stationary shoulder, the main shaft forming a mounting cavity, the mounting cavity being connected to the stirring cavity, at least a portion of the stirring head being located within the mounting cavity, the main shaft being connected to a second rotating mechanism, the second rotating mechanism being adapted to drive the stirring head to rotate synchronously via the main shaft; And / or, at least two stirring pins are formed at one end of the stirring head near the additive inlet, and the at least two stirring pins are distributed circumferentially spaced apart on the outside of the feed channel; And / or, the wire feeding holes are provided in a plurality of manner, and the plurality of wire feeding holes are distributed circumferentially spaced on the sidewall of the stationary shaft shoulder, and the plurality of wire feeding holes are adapted to simultaneously feed wire into the stirring chamber.

[0014] The present invention also proposes a control method for a wire feeding additive manufacturing device.

[0015] A control method for a wire feeding additive manufacturing apparatus according to an embodiment of the present invention, the control method being applicable to any of the wire feeding additive manufacturing apparatuses described above, and the control method comprising: Get the current bar rotation speed and the current stirring head rotation speed; The speed at which the axial feeder drives the rod to rotate is adjusted according to the current rod rotation speed and the target rod rotation speed, and the speed at which the stirring head rotates is adjusted according to the current stirring head rotation speed and the target stirring head rotation speed.

[0016] The present invention also proposes a substrate processing device.

[0017] According to an embodiment of the present invention, a substrate processing apparatus includes a processing table and a wire feeding additive manufacturing device as described in any of the above claims. The processing table is used to place a substrate, and the wire feeding additive manufacturing device is movable relative to the processing table and adapted to feed the filament and the rod toward the substrate.

[0018] The control method of the substrate processing equipment, the wire feeding additive manufacturing device, and the wire feeding additive manufacturing device described above have the same advantages over the prior art, and will not be repeated here.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of the wire feeding additive manufacturing apparatus according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the wire feeding additive manufacturing device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the axial feeding component according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the stirring head according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the static shoulder according to an embodiment of the present invention; Figure 6 This is a flowchart illustrating the control method of the wire feeding additive manufacturing apparatus according to an embodiment of the present invention. Figure 1 ; Figure 7 This is a flowchart illustrating the control method of the wire feeding additive manufacturing apparatus according to an embodiment of the present invention. Figure 2 .

[0021] Figure label: 100 is a filament feeding additive manufacturing device; 101 is a filament; 102 is a rod; 103 is a substrate; and 104 is a deposited layer. Stationary shaft shoulder 1, wire feed hole 11, additive manufacturing port 12, stirring chamber 13, main shaft 2, mounting cavity 21. Stirring head 3, feed channel 31, stirring pin 32, limiting surface 33. Axial feeding component 4, central ring 41, first feeding wheel 42, connecting rod 43. Side feeder 5, second feeder wheel 51. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following is for reference. Figures 1-5 The filament feeding additive manufacturing apparatus 100 described in this embodiment of the invention can ensure forming efficiency, avoid defects such as weak interlayer bonding and keyholes, improve the structural properties of the deposited structure, ensure the consistency of its properties, and ensure the reliability of feeding and bonding of the rod 102 and the filament 101.

[0026] like Figures 1-5 As shown, a wire feeding additive manufacturing device 100 according to an embodiment of the present invention includes: a stationary shoulder 1, a stirring head 3, and an axial feeding component 4.

[0027] The stationary shoulder 1 has a wire feeding hole 11, an additive inlet 12, and a stirring chamber 13. The additive inlet 12 and the wire feeding hole 11 are respectively connected to the stirring chamber 13. The wire feeding hole 11 is used to feed wire 101 into the stirring chamber 13. The stirring head 3 has a feeding channel 31 for guiding the rod 102 to the additive inlet 12. The stirring head 3 is rotatably mounted in the stirring chamber 13 to drive the wire 101 to be fed to the additive inlet 12. The axial feeder 4 is used to rotatably feed the rod 102 into the feeding channel 31, and the axial feeder 4 is adapted to drive the rod 102 to selectively rotate relative to the stirring head 3.

[0028] Friction stir additive manufacturing (FSIM) is a solid-state additive manufacturing method that can be used to additively manufacture non-ferrous metals such as aluminum and magnesium. This method utilizes the principles of frictional heating and stirring to promote bonding, allowing materials to be stacked layer by layer to achieve additive manufacturing. Wire feeding is one type of feeding method in FIM. The filament 101 is cut by the stirring head 3, and the segmented filament 101 is driven downwards by the stirring head 3 to its end face, allowing the segmented filament 101 to contact the substrate 103. As the stirring head 3 rotates, frictional heating occurs between the segmented filament 101 and the substrate 103, softening the filament 101 and allowing it to accumulate on the substrate 103, thus achieving additive manufacturing. This method has a wide range of applications.

[0029] Specifically, the wire feeding additive manufacturing device 100 is provided with a stationary shoulder 1, which is a static shoulder. The stationary shoulder 1 can be equipped with the components required by the wire feeding additive manufacturing device 100. When the wire feeding additive manufacturing device 100 is running, the stationary shoulder 1 is stationary relative to the other components. The stationary shoulder 1 can be configured as a rotating body or a rectangular body, etc. In this embodiment, the stationary shoulder 1 is configured as a rotating body. A stirring chamber 13 is formed inside the stationary shoulder 1. The stirring chamber 13 extends along the axial direction of the stationary shoulder 1, and both ends of the stirring chamber 13 can penetrate the stationary shoulder 1. An additive manufacturing port 12 is formed at one end of the stirring chamber 13. The additive manufacturing port 12 can be opened towards the substrate 103. The stationary shoulder 1 is also provided with a wire feeding hole 11, which is connected to the stirring chamber 13. The user can feed the wire 101 into the stirring chamber 13 through the wire feeding hole 11.

[0030] Furthermore, the filament feeding additive manufacturing device 100 is also equipped with a stirring head 3. The stirring head 3 is installed in the stirring chamber 13 of the stationary shaft shoulder 1 and is rotatable relative to the stirring chamber 13. The filament feeding hole 11 is used to feed the filament 101 into the stirring chamber 13, so that the filament 101 can be placed in the filament feeding hole 11 and enter the stirring chamber 13 along the filament feeding hole 11. The stirring head 3 can cut the filament 101 and push it towards the additive manufacturing port 12. The filament 101 pushed to the additive manufacturing port 12 can fall into the place to be added. On the surface of the substrate 103, the filament 101 can come into contact with the substrate 103. As the stirring head 3 rotates, the filament 101 and the substrate 103 can undergo plastic softening, allowing the filament 101 to be deposited on the surface of the substrate 103 to form a deposited layer 104. This completes the additive manufacturing of the substrate 103. Furthermore, by adjusting the rotation speed of the stirring head 3, the size of the filament 101 can be reduced to granular form, thereby accelerating the softening speed of the filament 101 and improving the additive manufacturing efficiency.

[0031] Furthermore, the stirring head 3 also has a feeding channel 31, which extends along the axial direction of the stirring head 3. The feeding channel 31 is used to feed the rod 102 to the additive manufacturing port 12, so that the wire feeding hole 11 can feed the wire 101 to the additive manufacturing port 12 through the stirring chamber 13, while the feeding channel 31 can also feed the rod 102 to the additive manufacturing port 12. In this way, when the stirring head 3 moves forward, the rod 102 can rub against the substrate 103 or the already deposited material through the additive manufacturing port 12, thereby filling the instantaneous cavity formed at the end of the stirring head 3. While ensuring forming efficiency and sufficient material mixing, the deposition of the rod 102 can also continuously forge the central area of ​​the substrate 103 or the already deposited material, thereby avoiding defects such as weak interlayer bonding and keyholes, improving the structural properties of the deposited structure, and ensuring the consistency of its properties.

[0032] In addition, the filament feeding additive manufacturing device 100 is also provided with an axial feeding component 4. The axial feeding component 4 is used to rotatably convey the rod 102 into the feeding channel 31, thereby preventing the rod 102 from being ejected from the stirring head 3 by the reaction force during the conveying process, thus ensuring the reliability of the conveying of the rod 102 and ensuring the reliability of the use of the filament feeding additive manufacturing device 100. The axial feeding component 4 can selectively drive the rod 102 to rotate relative to the stirring head 3, so that the rotational speed of the rod 102 and the rotational speed of the stirring head 3 can be set to be different. This allows the axial feeding component 4 to adjust the rotational speed of the rod 102 to adjust the rotational frictional heat generation value of the rod 102. The stirring head 3 can adjust the rotational frictional heat generation value of the filament 101 so that the rotational frictional heat generation value of the rod 102 and the rotational frictional heat generation value of the filament 101 are consistent, thereby ensuring the uniform mixing of the rod 102 and the filament 101 and ensuring the consistency of the plasticization state of the rod 102 and the filament 101.

[0033] The axial feeder 4 can also adjust the feeding speed of the bar 102 so that the feeding speed of the bar 102 is different from that of the wire 101, so that the mixing head 3 can adjust the approximate volume deposition rate. The axial feeder 4 can precisely and dynamically control the feeding of the internal bar 102, and can instantly adjust the flow rate according to the real-time process status (such as when the speed change at the path bend is prone to material shortage) to achieve compensation filling, thereby eliminating defects such as edge bite and holes. Moreover, the bar 102 and the mixing head 3 are independent of each other, and their rotation speed and feeding ratio can be flexibly adjusted, thus making them applicable to various material working conditions and increasing the scope of application.

[0034] According to an embodiment of the present invention, the filament feeding additive manufacturing apparatus 100, by providing a feeding channel 31 to the stirring head 3, allows the stirring head 3 to simultaneously feed filament 101 to the additive manufacturing port 12 and also feed rod 102 to the additive manufacturing port 12 through the feeding channel 31. This allows the rod 102 to rub against the substrate 103 or the already deposited material through the additive manufacturing port 12 as the stirring head 3 advances, thereby filling the momentary cavity formed at the end of the stirring head 3. While ensuring forming efficiency and sufficient material mixing, the deposition of the rod 102 also allows for continuous forging of the central region of the substrate 103 or the already deposited material. This design avoids defects such as weak interlayer bonding and keyholes, improves the structural properties of the deposited structure, and ensures the consistency of its properties. Furthermore, the axial feeding component 4 allows the rotational speed of the rod 102 and the rotational speed of the stirring head 3 to be set differently, as well as the feeding speed of the rod 102 and the feeding speed of the wire 101. This ensures the reliability of the rod 102 feeding and the reliability of the bonding between the rod 102 and the wire 101, thereby eliminating defects such as edge bite and holes, ensuring the reliability of additive manufacturing. It is suitable for various material working conditions, has better performance, and a wider range of applications.

[0035] In some embodiments, the axial feeder 4 has a first guide space, which is disposed opposite to the feed channel 31, and the bar 102 is adapted to be conveyed into the feed channel 31 through the first guide space.

[0036] Specifically, such as Figures 1-2 As shown, the axial feeder 4 is used to convey the bar 102. The axial feeder 4 forms a first guide space. The bar 102 can be placed in the first guide space and move along the extension direction of the first guide space. The first guide space is directly opposite the feed channel 31. That is, when the axial feeder 4 conveys the bar 102, the bar 102 can be conveyed from the first guide space into the feed channel 31, thereby ensuring the reliability of the bar 102 conveying. When the bar 102 is conveyed to the additive manufacturing port 12 through the feed channel 31, the axial feeder 4 can still apply a conveying force to the bar 102 to ensure the tightness of the contact between the bar 102 and the substrate 103, thereby ensuring the reliability of additive manufacturing.

[0037] In some embodiments, the axial feeder 4 includes a central ring 41 and a first feed wheel 42. The central ring 41 defines a first guide space, and the first feed wheel 42 is rotatably mounted on the central ring 41. The first feed wheel 42 presses against the outer peripheral wall of the bar 102 to drive the bar 102 to move from the first guide space to the feed channel 31.

[0038] Specifically, the axial feeder 4 can rotatably convey the bar 102, and as... Figures 2-3As shown, the axial feeding member 4 is provided with a central ring 41 and a first feeding wheel 42. The central ring 41 is constructed as a circular ring structure and its interior defines a first guide space, that is, the bar 102 can be placed inside the central ring 41. The first feeding wheel 42 is rotatably mounted on the central ring 41, so that the first feeding wheel 42 can rotate along the central ring 41. When the bar 102 is placed inside the central ring 41, the outer peripheral wall of the first feeding wheel 42 can press against the outer peripheral wall of the bar 102, so that when the first feeding wheel 42 rotates, it can drive the bar 102 to move axially along the first guide space.

[0039] In actual setup, a corresponding drive unit can be provided for the first feeding wheel 42 to drive the first feeding wheel 42 to rotate, and the first feeding wheel 42 rotates toward the feeding channel 31, so that when the first feeding wheel 42 rotates, it can drive the bar 102 to move from the first guide space toward the feeding channel 31, so as to ensure the reliability of feeding the bar 102. When the bar 102 presses against the substrate 103 through the additive port 12 from the feeding channel 31, the first feeding wheel 42 can still apply driving force to the bar 102 to ensure the tightness of the contact between the bar 102 and the substrate 103, thereby ensuring the reliability of additive manufacturing.

[0040] In other embodiments, the axial feeders 4 are configured in multiple groups, which are spaced apart along the conveying direction of the bar 102. The first guide spaces of the multiple groups of axial feeders 4 are all connected, so that the bar 102 can be sequentially passed through the multiple first guide spaces. The axial feeders 4 can drive the bar 102 to rotate relative to the stirring head 3. By setting multiple groups of axial feeders 4 to convey the bar 102 at the same time, the reliability of driving the bar 102 can be guaranteed. In actual configuration, the cross-section of the bar 102, as well as the cross-section of the first guide space and the feed channel 31, can all be set as squares to improve the reliability of circumferentially limiting the bar 102.

[0041] In some embodiments, the axial feeder 4 further includes a connecting rod 43, which is connected between the central ring 41 and the first rotating mechanism. The first rotating mechanism is adapted to drive the central ring 41 to rotate via the connecting rod 43, so as to drive the first feed wheel 42 to rotate circumferentially.

[0042] Specifically, such as Figures 2-3 As shown, the axial feeding component 4 is also provided with a connecting rod 43. The connecting rod 43 is constructed as a rod. One end of the connecting rod 43 is connected to the outer peripheral wall of the central ring 41 and extends radially outward. The other end of the connecting rod 43 can be connected to the first rotating mechanism, so that when the first rotating mechanism is running, the connecting rod 43 can drive the central ring 41 to rotate. The first feeding wheel 42 is rotatably sleeved on the central ring 41, and the first feeding wheel 42 is relatively fixed to the central ring 41 in the circumferential direction along the central ring 41, so that when the central ring 41 rotates, it can drive the first feeding wheel 42 to rotate in the circumferential direction.

[0043] Thus, when the rod 102 is installed in the first guide space, the first feeding wheel 42 presses against the outer peripheral wall of the rod 102, so that when the first feeding wheel 42 rotates, it can transport the rod 102 from the first guide space to the feeding channel 31. The first feeding wheel 42 and the first guide space can limit the rod 102 in the circumferential direction, so that when the first rotating mechanism drives the central ring 41 to rotate through the connecting rod 43, the central ring 41 can drive the rod 102 to rotate in the circumferential direction through the first feeding wheel 42, thereby making the rod 102 and the substrate 103 have relative friction to ensure the reliability of additive manufacturing and improve the additive manufacturing effect.

[0044] In some embodiments, there are multiple connecting rods 43, which are distributed circumferentially on the outer peripheral wall of the central ring 41. There are multiple first feeding wheels 42, each of which is distributed between two adjacent connecting rods 43.

[0045] Specifically, such as Figures 2-3 As shown, multiple connecting rods 43 are configured, that is, two, three or four connecting rods 43 are configured. The multiple connecting rods 43 are distributed circumferentially along the central ring 41, so that the first rotating mechanism can drive the central ring 41 to rotate through the multiple connecting rods 43. This reduces the force on each connecting rod 43, avoids deformation or breakage of the connecting rod 43, extends its service life, and ensures that even if one of the multiple connecting rods 43 is damaged, the remaining connecting rods 43 can still be used, thus ensuring the reliability of the first rotating mechanism driving the central ring 41.

[0046] Furthermore, multiple first feeding wheels 42 are also provided, that is, two, three or four first feeding wheels 42 can be provided. Multiple first feeding wheels 42 are distributed at intervals along the extension direction of the central ring 41, and each first feeding wheel 42 can press against the outer peripheral wall of the bar 102, thereby ensuring the reliability of feeding the bar 102. Each first feeding wheel 42 is distributed between two adjacent connecting rods 43, and the interval between each first feeding wheel 42 is the same, and the interval between each connecting rod 43 is also the same, so that the force on each connecting rod 43 and each first feeding wheel 42 is the same, thereby extending the service life of the connecting rod 43 and the first feeding wheel 42, and ensuring the reliability of the axial feeding component 4.

[0047] In some embodiments, the filament feeding additive manufacturing apparatus 100 further includes a lateral feeding member 5, and a filament feeding hole 11 is connected to the side wall of the mixing chamber 13. The lateral feeding member 5 forms a second guiding space, which is directly opposite to the filament feeding hole 11. The filament 101 is adapted to be conveyed into the filament feeding hole 11 through the second guiding space.

[0048] Specifically, the stationary shoulder 1 is provided with a wire feeding hole 11 communicating with the stirring chamber 13, through which the wire 101 can be fed into the stirring chamber 13, and as... Figures 1-2 as well as Figure 5 As shown, the wire feeding hole 11 is located on the side wall of the stationary shaft shoulder 1 and communicates with the side wall of the stirring chamber 13, thereby making the conveying direction of the wire 101 different from the conveying direction of the rod 102, avoiding interference, and ensuring the reliability of the conveying of the rod 102 and the wire 101. Figures 1-2 As shown, the wire feeding additive manufacturing device 100 is also provided with a lateral feeding component 5, which is located on the side of the stationary shaft shoulder 1. The lateral feeding component 5 is used to feed the wire 101 into the wire feeding hole 11.

[0049] Furthermore, the lateral feeding member 5 forms a second guiding space, and the wire 101 can be placed in the second guiding space and move along the extension direction of the second guiding space. The second guiding space is directly opposite the wire feeding hole 11. That is, when the lateral feeding member 5 conveys the wire 101, the wire 101 can be conveyed from the second guiding space into the wire feeding hole 11, thereby ensuring the reliability of the wire 101 conveying.

[0050] In some embodiments, the lateral feeding member 5 includes at least two second feeding rollers 51, a second guide space is formed between the at least two second feeding rollers 51, each second feeding roller 51 abuts against the outer peripheral wall of the filament 101, and the second feeding rollers 51 are adapted to drive the filament 101 to move from the second guide space to the filament feeding hole 11.

[0051] Specifically, the lateral feeding component 5 can feed the wire 101 into the wire feeding hole 11, and as... Figures 1-2 As shown, the lateral feeding component 5 is provided with at least two second feeding wheels 51, that is, the second feeding wheels 51 can be set to two, three or four, etc., and the second guide space can be formed between the at least two second feeding wheels 51, that is, the filament 101 can be placed between the at least two second feeding wheels 51. The outer peripheral wall of each second feeding wheel 51 abuts against the outer peripheral wall of the filament 101, so that when the second feeding wheel 51 rotates, it can convey the filament 101 out of the second guide space, and at least two second feeding wheels 51 can drive the filament 101 to ensure the reliability of conveying.

[0052] In this way, each second feeding wheel 51 can be equipped with a corresponding driving component, so that the driving component can drive the second feeding wheel 51 to rotate toward the wire feeding hole 11, thereby driving the wire 101 to be conveyed from the second guide space into the wire feeding hole 11. When the wire 101 is conveyed from the wire feeding hole 11 into the mixing chamber 13, the second feeding wheel 51 can still apply force to the wire 101, thereby ensuring the reliability of the wire 101 being conveyed from the wire feeding hole 11 into the mixing chamber 13, thus ensuring the reliability of additive manufacturing. Furthermore, setting multiple second feeding wheels 51 can reduce the reaction force exerted by the wire 101 on each second feeding wheel 51, thereby extending the service life of the second feeding wheel 51 and ensuring the reliability of the lateral feeding component 5.

[0053] In some embodiments, the filament feeding additive manufacturing device 100 further includes a main shaft 2, which is mounted above the stationary shoulder 1. The main shaft 2 forms a mounting cavity 21, which is connected to the stirring cavity 13. At least a portion of the stirring head 3 is located in the mounting cavity 21. The main shaft 2 is connected to a second rotating mechanism, which is adapted to drive the stirring head 3 to rotate synchronously via the main shaft 2.

[0054] Specifically, such as Figures 1-2 As shown, the filament feeding additive manufacturing device 100 is also provided with a main shaft 2. The main shaft 2 is configured as a columnar structure, and an installation cavity 21 is formed inside the main shaft 2. The main shaft 2 can be installed above the stationary shaft shoulder 1, so that the installation cavity 21 is connected to the stirring cavity 13. Thus, one end of the stirring head 3 can be placed in the stirring cavity 13 to feed and add filament 101, and the other end can be placed in the installation cavity 21. When the stirring head 3 is placed in the installation cavity 21, it can be circumferentially fixed with the main shaft 2, so that when the main shaft 2 rotates, it can drive the stirring head 3 to rotate, so that the stirring head 3 can cut and feed the filament 101 in the stirring cavity 13.

[0055] Furthermore, a second rotating mechanism is provided outside the filament feeding additive manufacturing device 100. The second rotating mechanism is connected to the main shaft 2, so that when the second rotating mechanism rotates, it can drive the main shaft 2 to rotate, which in turn can drive the stirring head 3 to rotate. Figure 4 As shown, the stirring head 3 forms a limiting surface 33, and a limiting protrusion can be formed on the inner peripheral wall of the main shaft 2. The limiting protrusion abuts against the limiting surface 33, thereby limiting and fixing the main shaft 2 and the stirring head 3 in a circumferential direction. Alternatively, in actual installation, a through hole can be provided in the main shaft 2, and the ejector pin can abut against the limiting surface 33 of the stirring head 3 through the through hole, thereby limiting and fixing the main shaft 2 and the stirring head 3 in a circumferential direction, thus ensuring the reliability of the stirring head 3 in additive manufacturing of the filament 101.

[0056] In other embodiments, at least two stirring pins 32 are formed at one end of the stirring head 3 near the additive port 12, and the at least two stirring pins 32 are distributed circumferentially spaced on the outside of the feed channel 31.

[0057] Specifically, such asFigure 1 and Figure 4 As shown, the stirring head 3 is disposed in the stirring chamber 13, and at least two stirring pins 32 are formed at the end of the stirring head 3 near the additive port 12. That is, the stirring pins 32 can be set to two, three or four, etc. The stirring pins 32 protrude outward along the axial direction on the end face of the stirring head 3, and at least two stirring pins 32 are distributed circumferentially spaced on the outside of the feed channel 31. This allows the stirring pins 32 to participate in the stirring friction additive manufacturing of the filament 101 and the substrate 103, while the rod 102 in the feed channel 31 can also perform friction additive manufacturing with the substrate 103. This can avoid the occurrence of cavities, improve the structural properties of the deposited structure, and ensure the consistency of its properties.

[0058] In other embodiments, there are multiple wire feeding holes 11, which are distributed circumferentially on the sidewall of the stationary shoulder 1. The multiple wire feeding holes 11 are adapted to simultaneously feed wire 101 into the stirring chamber 13.

[0059] Specifically, the filament 101 can be fed into the mixing chamber 13 through the filament feeding hole 11, and multiple filament feeding holes 11 can be provided, that is, two, three or four filament feeding holes 11 can be provided. Multiple filament feeding holes 11 are distributed circumferentially along the stationary shoulder 1, and each filament feeding hole 11 is provided with a side feeding member 5, so that multiple side feeding members 5 can feed the filament 101 into the corresponding filament feeding hole 11, so as to feed the filament into the mixing chamber 13 at the same time, thereby improving the filament feeding efficiency and improving the additive manufacturing efficiency.

[0060] The present invention also proposes a control method for a wire feeding additive manufacturing device.

[0061] According to the control method of the wire feeding additive manufacturing apparatus of the present invention, the control method is applicable to the wire feeding additive manufacturing apparatus 100 described above, and as follows: Figure 6 As shown, the control methods include: S1. Obtain the current rotation speed of the rod and the current rotation speed of the stirring head; S2. Adjust the speed at which the axial feeder 4 drives the rod 102 to rotate according to the current rod rotation speed and the target rod rotation speed, and adjust the speed at which the mixing head 3 rotates according to the current mixing head rotation speed and the target mixing head rotation speed.

[0062] Specifically, the first rotating mechanism can drive the axial feeding component 4 to rotate the rod 102 relative to the stirring head 3, and the second rotating mechanism can drive the stirring head 3 to rotate through the main shaft 2. That is, the rotation speed of the first rotating mechanism is the current rod speed, and the rotation speed of the second rotating mechanism is the current stirring head speed. The first rotating mechanism and the second rotating mechanism are two independent mechanisms, which allows the current rod speed and the current stirring head speed to be set to be different. According to the travel state of the filament feeding additive manufacturing device 100, the rotation speed of the first rotating mechanism and the rotation speed of the second rotating mechanism can be adjusted to adjust the current rod speed towards the target rod speed and the current stirring head speed towards the target stirring head speed. This makes the rotational friction heat generation value of the rod 102 consistent with the rotational friction heat generation value of the filament 101, so as to ensure the uniform mixing of the rod 102 and the filament 101 and the consistency of the plasticization state of the rod 102 and the filament 101, thereby ensuring the additive manufacturing effect.

[0063] The specific additive manufacturing steps are as follows: The second rotating mechanism rotates, driving the main shaft 2 to rotate at high speed, causing the stirring needle 32 of the stirring head 3 to penetrate the substrate 103 or the deposited layer. At the same time, the side feeding component 5 is activated to feed the filament 101 through the filament feeding hole 11 into the stirring chamber 13. As the stirring head 3 rotates, the filament 101 is cut and fed to the additive port 12. The filament 101 at the stirring needle 32 and the additive port 12 are stirred and rubbed with the substrate 103 or the deposited layer to generate heat, causing the filament 101 and the local material of the substrate 103 or the deposited layer to become plastic. Simultaneously, the axial feeding component 4 is activated to feed the rod 102 to the feed channel 31. This allows the additive port 12 to form a dual-channel feeding system, which avoids the instantaneous cavity formed when the tip of the stirring needle 32 separates from the lower layer material during movement, thus improving the structural properties of the deposited structure and ensuring its performance consistency.

[0064] In some embodiments, such as Figure 7 As shown, the control method also includes: S3. Obtain the current bar feeding speed and the current wire feeding speed; S4. Adjust the speed of the axial feeder 4 for conveying the bar 102 according to the current bar feeding speed and the target bar feeding speed, and adjust the feeding speed of the wire 101 according to the current wire feeding speed and the target wire feeding speed.

[0065] Specifically, the first feeding wheel 42 of the axial feeding member 4 can transport the bar 102 to the feed channel 31 of the mixing head 3, and the second feeding wheel 51 of the lateral feeding member 5 can feed the wire 101 into the wire feeding hole 11. That is, the rotation speed of the first feeding wheel 42 is the current bar feeding speed, and the rotation speed of the second feeding wheel 51 is the current wire feeding speed. The first feeding wheel 42 and the second feeding wheel 51 are two independent structures, which allows the current bar feeding speed and the current wire feeding speed to be set to be different.

[0066] Furthermore, during the additive manufacturing process, the rotation speed of the second feeding wheel 51 can be adjusted to the target filament feeding speed, so that the filament 101 can be adjusted to a roughly adjustable volume deposition rate. Moreover, the rotation speed of the first feeding wheel 42 can be adjusted to the target rod feeding speed according to the real-time process status (such as when material shortage is likely to occur due to speed changes at path bends), so as to instantly adjust the flow rate of the rod 102, achieve compensation filling, thereby eliminating defects such as edge bite and voids. In addition, the rod 102 and the stirring head 3 are independent of each other, and their rotation speed and feeding ratio can be flexibly adjusted, thus making it applicable to various material working conditions and increasing the scope of application.

[0067] Among them, the wire feeding speed V of the lateral feeder 5 外 According to the traveling speed V of the wire feeding additive manufacturing device 100 工具 The desired sedimentation channel cross-sectional area was calculated, and the axial feeder 4 served as supplementary feeder with a feed rate V. 内 It is dynamically variable and can be adjusted according to the real-time process conditions. Furthermore, based on the fundamental formula for heat generation through rotational friction, P=Mf... ω (where P is the heat generation power, Mf is the frictional torque, and ω is the rotational angular velocity) is controlled by adjusting the rotational speed n of the stirring head 3. 针 And bar material 102 rotation speed n 内 This can avoid structural defects, ensure uniform mixing of internal and external materials, and guarantee the consistency of the plasticization state of internal and external materials.

[0068] The entire process begins with the rotating stirring head 3 driving the friction between the filament 101 and stirring needle 32 at the additive inlet 12 and the underlying deposited material or substrate 103, generating a basic external plasticizing zone that undertakes the task of constructing the main body of the additive part. At the same time, the axial feeding component 4 is started synchronously, and the feeding channel 31 of the stirring head 3 injects another metal rod 102 directly into the core position of the deposition zone after it has been plasticized by friction with the substrate 103 or the underlying deposited material. One of these two materials comes from the outside and the other comes from the center, together providing filling material for the deposition layer.

[0069] During the movement of the stirring head 3, the rotating stirring needle 32 performs intense shearing and stirring on the external filament 101 and the internally injected rod 102. This ensures sufficient interdiffusion and mechanical mixing between the filament 101 and the rod 102, as well as between the new material and the underlying matrix, thereby thoroughly breaking down the oxide film and promoting dynamic recrystallization, resulting in a fine and uniform grain structure. Simultaneously, the injection of the central rod 102 ensures sufficient and uniform stirring from the bottom to the top of the deposition channel, thus forming a "from the inside out" strengthened mixture. At the same time, the enormous upsetting pressure applied by the stationary shoulder 1 compacts the fully mixed material, ensuring the deposited layer reaches a completely dense state.

[0070] Thus, the wire 101 fed by the lateral feeder 5 can be set with an approximate volume deposition rate, while the rod 102 fed by the axial feeder 4 can act as a precise dynamic controller, which can instantly adjust the flow rate according to the real-time process status (such as when material shortage is likely to occur due to speed changes at path bends) to achieve compensation filling, thereby eliminating defects such as edge bite and voids, enhancing the stability and adaptability of the process, and thus ensuring the consistency of the geometry of the deposited layer and improving the internal quality.

[0071] According to the control method of the filament feeding additive manufacturing device of the present invention, by setting a feeding channel 31 in the stirring head 3, the stirring head 3 can simultaneously feed filament 101 to the additive manufacturing port 12 and also feed rod 102 to the additive manufacturing port 12 through the feeding channel 31. As the stirring head 3 moves forward, the rod 102 can rub against the substrate 103 or the deposited material through the additive manufacturing port 12, thereby filling the instantaneous cavity formed at the end of the stirring head 3. While ensuring forming efficiency and sufficient material mixing, the deposition of the rod 102 can also continuously forge the central area of ​​the substrate 103 or the deposited material, thereby avoiding defects such as weak interlayer bonding and keyholes, improving the structural properties of the deposited structure, and ensuring its performance consistency. Furthermore, an axial feeding component 4 is provided, so that the rotation speed of the rod 102 and the rotation speed of the stirring head 3 can be set to be different. This ensures the reliability of the rod 102 feeding and the reliability of the bonding between the rod 102 and the filament 101, thereby ensuring the reliability of additive manufacturing, better performance, and wider applicability.

[0072] The present invention also proposes a substrate processing device.

[0073] According to an embodiment of the present invention, a substrate processing apparatus includes a processing table and a wire feeding additive device 100 as described above. The processing table is used to place a substrate 103, and the wire feeding additive device 100 is movable relative to the processing table and adapted to feed filaments 101 and rods 102 toward the substrate 103.

[0074] Specifically, the substrate processing equipment is equipped with a processing table, which is flat and can be used to place the substrate 103, i.e., the board to be deposited. The wire feeding additive device 100 is located close to the substrate 103, and the additive port 12 of the wire feeding additive device 100 is open towards the part of the substrate 103 to be added. The wire feeding additive device 100 can move relative to the processing table. At the same time, the wire feeding additive device 100 can also feed filaments 101 and rods 102 to the surface of the substrate 103, so that a deposited layer 104 can be formed on the surface of the substrate 103. As the moving path of the wire feeding additive device 100 increases, the area of ​​the deposited layer 104 can be increased, ensuring the reliability of additive processing.

[0075] According to the substrate processing equipment of the present invention, by providing a feeding channel 31 to the stirring head 3, the stirring head 3 can simultaneously feed filament 101 to the additive manufacturing port 12 and also feed rod 102 to the additive manufacturing port 12 through the feeding channel 31. As the stirring head 3 moves forward, the rod 102 can rub against the substrate 103 or the deposited material through the additive manufacturing port 12, thereby filling the instantaneous cavity formed at the end of the stirring head 3. While ensuring forming efficiency and sufficient material mixing, the deposition of the rod 102 can also continuously forge the central area of ​​the substrate 103 or the deposited material, thereby avoiding defects such as weak interlayer bonding and keyholes, improving the structural properties of the deposited structure, and ensuring the consistency of its properties. Furthermore, an axial feeding component 4 is provided, so that the rotational speed of the rod 102 and the rotational speed of the stirring head 3 can be set to be different. This ensures the reliability of the rod 102 feeding and the reliability of the bonding between the rod 102 and the filament 101, thereby ensuring the reliability of additive manufacturing, resulting in better performance and a wider range of applications.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wire feeding additive manufacturing device, characterized in that, include: A stationary shoulder (1) is formed with a wire feeding hole (11), an additive port (12) and a stirring chamber (13). The additive port (12) and the wire feeding hole (11) are respectively connected to the stirring chamber (13). The wire feeding hole (11) is used to feed wire (101) into the stirring chamber (13). A stirring head (3) is formed with a feeding channel (31) for guiding the rod (102) to the additive port (12). The stirring head (3) is rotatably installed in the stirring chamber (13) to drive the filament (101) to be conveyed to the additive port (12). An axial feeder (4) is used to convey the bar (102) into the feed channel (31), and the axial feeder (4) is adapted to selectively rotate the bar (102) relative to the stirring head (3).

2. The wire feeding additive manufacturing device according to claim 1, characterized in that, The axial feeder (4) has a first guide space, which is directly opposite to the feed channel (31). The bar (102) is adapted to be conveyed into the feed channel (31) through the first guide space.

3. The wire feeding additive manufacturing device according to claim 2, characterized in that, The axial feeder (4) includes a central ring (41) and a first feed wheel (42). The central ring (41) defines the first guide space. The first feed wheel (42) is rotatably mounted on the central ring (41). The first feed wheel (42) presses against the outer peripheral wall of the bar (102) to drive the bar (102) to move from the first guide space to the feed channel (31).

4. The wire feeding additive manufacturing device according to claim 3, characterized in that, The axial feeding component (4) also includes a connecting rod (43), which is connected between the central ring (41) and the first rotating mechanism. The first rotating mechanism is adapted to drive the central ring (41) to rotate through the connecting rod (43) so as to drive the first feeding wheel (42) to rotate circumferentially.

5. The wire feeding additive manufacturing device according to claim 4, characterized in that, The connecting rod (43) is provided in multiple ways, and the multiple connecting rods (43) are distributed circumferentially on the outer peripheral wall of the central ring (41). The first feeding wheel (42) is provided in multiple ways, and each first feeding wheel (42) is distributed between two adjacent connecting rods (43).

6. The wire feeding additive manufacturing device according to claim 1, characterized in that, It also includes a side feeding component (5), wherein the wire feeding hole (11) is connected to the side wall of the stirring chamber (13); The lateral feeding member (5) has a second guiding space, which is directly opposite to the wire feeding hole (11). The wire (101) is adapted to be conveyed into the wire feeding hole (11) through the second guiding space.

7. The wire feeding additive manufacturing device according to claim 6, characterized in that, The lateral feeding member (5) includes at least two second feeding wheels (51), the second guide space is formed between the at least two second feeding wheels (51), each second feeding wheel (51) abuts against the outer peripheral wall of the filament (101), and the second feeding wheel (51) is adapted to drive the filament (101) to move from the second guide space to the filament feeding hole (11).

8. The wire feeding additive manufacturing device according to claim 1, characterized in that, It also includes a main shaft (2), which is mounted above the stationary shoulder (1). The main shaft (2) forms a mounting cavity (21), which is connected to the stirring cavity (13). At least a portion of the stirring head (3) is located in the mounting cavity (21). The main shaft (2) is connected to a second rotating mechanism, which is adapted to drive the stirring head (3) to rotate synchronously through the main shaft (2). And / or, at least two stirring pins (32) are formed at one end of the stirring head (3) near the additive port (12), and at least two stirring pins (32) are distributed circumferentially spaced on the outside of the feed channel (31); And / or, the wire feeding holes (11) are provided in multiples, and the multiple wire feeding holes (11) are distributed circumferentially spaced on the side wall of the stationary shoulder (1), and the multiple wire feeding holes (11) are adapted to simultaneously feed wire (101) into the stirring chamber (13).

9. A control method for a wire feeding additive manufacturing device, characterized in that, The control method is applicable to the wire feeding additive manufacturing apparatus according to any one of claims 1-8, and the control method includes: Get the current bar rotation speed and the current stirring head rotation speed; The speed at which the axial feeder (4) drives the rod (102) to rotate is adjusted according to the current rod rotation speed and the target rod rotation speed, and the speed at which the stirring head (3) rotates is adjusted according to the current stirring head rotation speed and the target stirring head rotation speed.

10. A substrate processing device, characterized in that, The device includes a processing table and a wire feeding additive manufacturing apparatus (100) according to any one of claims 1-8, the processing table being used to place a substrate (103), and the wire feeding additive manufacturing apparatus (100) being movable relative to the processing table and adapted to feed the filament (101) and the rod (102) toward the substrate (103).

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