A wire-fed electromagnetic jetting additive manufacturing device and method

Abstract

The application discloses a wire feeding type electromagnetic jet additive manufacturing device and method and belongs to the technical field of surface engineering. The device comprises a shell, an alternating current power supply box is fixedly installed on the shell, a stirring needle is arranged in the shell, and the device further comprises: a fixing seat fixedly installed in the shell, a heating coil being arranged between the fixing seat and the stirring needle; the lower end of the stirring needle is provided with a spinning port and a heating channel matched with the spinning port, the upper end of the heating channel penetrates through the stirring needle and is fixedly connected with the shell, and an extrusion assembly is fixedly installed on the heating channel; a smoke pipe is fixedly installed on the extrusion assembly, the upper end of the smoke pipe penetrates through the shell and is connected with a negative pressure fan; smoke dust generated when a metal wire is melted is ionized by a negative ion generator in the extrusion assembly, large suspended matters in smoke gas are adsorbed, and finally fall, and purified air is discharged through the smoke pipe.

Description

Technical Field

[0001] This invention relates to the field of surface engineering technology, and in particular to a wire-feeding electromagnetic jet additive manufacturing apparatus and method. Background Technology

[0002] Surface spraying is a technology for strengthening and protecting the surface of workpieces. Currently, commonly used surface spraying technologies are mainly divided into thermal spraying and cold spraying. Thermal spraying uses gas, liquid fuel, or electric arcs, plasma arcs, lasers, etc., as heat sources to heat the spraying material, such as metals, alloys, cermets, oxides, carbides, plastics, and their composites, to a molten or semi-molten state. This is then atomized by a high-speed airflow and sprayed and deposited onto the pre-treated work surface, forming a firmly adhered surface layer.

[0003] When using an electric arc as a heat source, two metal wires being sprayed are used as consumable electrodes. The two continuously fed metal wires are connected to the positive and negative poles of a DC current, respectively. At the moment when the ends of the metal wires are short-circuited, the ends of the two metal wires melt simultaneously and are sprayed onto the surface of the substrate under the action of a high-speed airflow to form a coating.

[0004] Because the temperature of the spraying arc is high, metal will inevitably evaporate during spraying. This metal will remain in the air for a long time, forming metal fumes that are easily inhaled into the lungs. Workers who engage in spraying operations for a long time may develop occupational diseases such as pneumoconiosis and metal fever. Summary of the Invention

[0005] The purpose of this invention is to solve the problem in the prior art that due to the high temperature of the spraying arc, metal evaporation is inevitable during spraying, and the metal fumes remain in the air for a long time, forming metal dust that is easily inhaled into the lungs. This leads to occupational diseases such as pneumoconiosis and metal fever in workers who engage in spraying operations for a long time. The invention proposes a wire-feeding electromagnetic spraying additive manufacturing device and method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wire-feeding electromagnetic jet additive manufacturing apparatus includes a housing, an AC power supply box fixedly mounted on the housing, a stirring needle disposed inside the housing, and a mounting base fixedly mounted inside the housing. A heating coil is disposed between the mounting base and the stirring needle, and the input end of the heating coil is connected to the AC power supply box via a wire. The lower end of the stirring needle is provided with a spinneret and a heating channel adapted to the spinneret. The upper end of the heating channel passes through the stirring needle and is fixedly connected to the housing. An extrusion assembly is fixedly mounted on the heating channel. A smoke pipe is fixedly mounted on the extrusion assembly, and the upper end of the smoke pipe passes through the housing and is connected to a negative pressure fan.

[0008] To protect the stirring needle and improve the stability of wire feeding, preferably, a protective sleeve is also included, which is rotatably installed inside the housing. The lower end of the protective sleeve penetrates the housing and is slidably mounted with a fly plate. A sealed bearing is fixedly installed between the protective sleeve and the stirring needle.

[0009] In order to generate intense plastic deformation by stirring and friction on the surface of the substrate, so that the filaments on the substrate are further rolled into a dense coating, a toothed ring is fixedly installed on the protective sleeve, a motor is fixedly installed inside the housing, and a conical tooth that meshes with the toothed ring is fixedly installed at the output end of the motor.

[0010] To further improve the extrusion speed after the filament is melted, the extrusion assembly includes: a melting chamber fixedly installed on the heating channel, wherein two meshing extrusion gears are rotatably installed inside the melting chamber, and a drive gear coaxial with one of the extrusion gears is rotatably installed on the outer wall of the melting chamber; a horizontal plate rotatably installed inside the stirring needle, wherein two symmetrically arranged drive rods are rotatably installed above the horizontal plate, wherein the upper end of the drive rod passes through the stirring needle and a magnetic block with opposite magnetic properties is fixedly installed on the opposite surface of the protective sleeve, and an arc-shaped rack meshing with the drive gear is fixedly installed below the horizontal plate.

[0011] To further constrain the sliding direction of the drive rod, a slide rail seat is fixedly installed inside the stirring needle, and the drive rod is slidably installed inside the slide rail seat.

[0012] To further improve the efficiency of smoke and dust removal, a breathable membrane is fixedly installed in the melting chamber, and a smoke collection cavity is formed between the breathable membrane and the top of the melting chamber.

[0013] To facilitate the sliding connection of the flyboard, the system further includes: multiple metal rods slidably installed within the housing, each metal rod having an electromagnetic pulse coil fitted on it; the lower ends of the metal rods extending through the housing and collectively mounted on a drive plate; a groove and a connecting rod that slides within the groove are provided on the side of the drive plate closest to the flyboard; and the lower ends of the connecting rods are fixedly connected to the flyboard.

[0014] To further control the electromagnetic pulse coils to simultaneously energize or de-energize the metal rod, a limiting seat is fixedly installed inside the housing, and a limiting sleeve is installed at equal intervals along the circumference of the limiting seat. The metal wire connecting adjacent electromagnetic pulse coils is fixed inside the limiting sleeve.

[0015] To control the high-speed movement of the flyboard, the upper surface of the fixed base extends inward and has a groove. Multiple push rods are elastically connected in the groove, and a push plate that contacts the top of the push rod is fixedly installed below the toothed ring.

[0016] A wire-feed electromagnetic jet additive manufacturing method, the operation steps of which are as follows:

[0017] Step 1: The filament is fed by the filament feeding mechanism to the stirring needle and heated to a molten state;

[0018] Step 2: The flying plate carries molten material and impacts the substrate at high speed to form a metallurgical bond;

[0019] Step 3: The motor drives the protective sleeve to rotate, causing the flyboard to perform stirring, friction, and crushing motions.

[0020] Compared with the prior art, the present invention provides a wire-feeding electromagnetic jet additive manufacturing apparatus and method, which has the following beneficial effects:

[0021] 1. In this wire-feeding electromagnetic jet additive manufacturing device, two metal wires are continuously fed into the heating channel inside the stirring needle. The heating coil heats the heating channel, and the metal wires in the heating channel are gradually heated into molten material. The molten material enters the melting chamber, and the smoke generated when the metal wires melt passes through the breathable membrane and enters the smoke collection chamber to converge. A negative ion generator is fixedly installed in the smoke collection chamber. After the current passes through the negative ion generator, a DC negative high voltage is formed, and then a large number of free electrons are emitted from the emitter head to adsorb larger suspended particles in the smoke. Finally, they fall down, and the purified air is discharged through the smoke pipe.

[0022] 2. In this wire-feeding electromagnetic jet additive manufacturing device, during the rotation of the protective sleeve, the magnetic blocks on the protective sleeve sequentially attract two drive rods to rise. The rising drive rods drive the horizontal plate on the same side to rotate. At this time, the arc-shaped rack on the horizontal plate drives the meshing drive gear to rotate. The rotating drive gear causes the two meshing extrusion gears in the melting chamber to rotate. When the extrusion gears go from meshing to disengaging, a local vacuum is formed in the suction chamber, and the molten material is sucked in. The sucked-in molten material fills each tooth valley of the extrusion gear and is carried to the discharge chamber. When the extrusion gears mesh, the molten material is pressurized and sprayed onto the substrate by the discharge spinneret. At the same time, the rotating protective sleeve can drive the slidingly connected fly plate to stir and rub the surface of the substrate, producing violent plastic deformation, so that the filament on the substrate is further rolled into a dense coating.

[0023] 3. In this wire-feeding electromagnetic jet additive manufacturing device, during the rotation cycle of the gear ring, the push plate on the lower surface of the gear ring pushes the push rod down, and the sliding push rod pushes the metal rod down, away from the center position of the electromagnetic pulse coil. When the push plate releases the pressure on the push rod, the metal rod will be re-inhaled by the electromagnetic pulse coil, forming a reciprocating motion, which causes the fly plate to continuously impact the molten material on the substrate at high speed, so that the molten material and the upper surface of the substrate form a metallurgical bond. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a wire-feeding electromagnetic jet additive manufacturing device proposed in this invention;

[0025] Figure 2 This is a second-view structural schematic diagram of a wire-feeding electromagnetic jet additive manufacturing apparatus proposed in this invention.

[0026] Figure 3 This is a schematic diagram of the internal structure of the stirring needle in a wire-feeding electromagnetic jet additive manufacturing device proposed in this invention.

[0027] Figure 4 This is a partial structural diagram of the extrusion assembly of a wire-feeding electromagnetic jet additive manufacturing device proposed in this invention;

[0028] Figure 5 This invention proposes a wire-feeding electromagnetic jet additive manufacturing apparatus. Figure 1 A schematic diagram of the structure of part A;

[0029] Figure 6 This invention proposes a wire-feeding electromagnetic jet additive manufacturing apparatus. Figure 2 A structural diagram of section B;

[0030] Figure 7 This invention proposes a wire-feeding electromagnetic jet additive manufacturing apparatus. Figure 3 A structural diagram of part C.

[0031] In the diagram: 1. Shell; 2. AC power supply box; 3. Stirring needle; 301. Spinneret; 4. Fixing seat; 401. Groove; 5. Heating coil; 6. Heating channel; 7. Smoke tube; 8. Protective sleeve; 9. Flying plate; 10. Sealed bearing; 11. Gear ring; 12. Motor; 13. Conical tooth; 14. Melting chamber; 1401. Breathable membrane; 15. Extrusion gear; 16. Drive gear; 17. Horizontal plate; 18. Drive rod; 19. Magnetic block; 20. Arc rack; 21. Metal rod; 22. Drive plate; 2201. Slide groove; 23. Connecting rod; 24. Electromagnetic pulse coil; 25. Limiting seat; 2501. Limiting sleeve; 26. Push rod; 27. Push plate; 28. Slide rail seat. Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention. Example

[0034] Reference Figures 1-7 An electromagnetic jet additive manufacturing apparatus for wire feeding includes a housing 1, an AC power supply box 2 fixedly mounted on the housing 1, a stirring needle 3 disposed inside the housing 1, and a fixing seat 4 fixedly mounted inside the housing 1. A heating coil 5 is disposed between the fixing seat 4 and the stirring needle 3, and the input end of the heating coil 5 is connected to the AC power supply box 2 via a wire. The lower end of the stirring needle 3 is provided with a spinneret 301 and a heating channel 6 adapted to the spinneret 301. The heating channel 6 is spiral-shaped and made of aluminum alloy with good thermal conductivity to accelerate the melting of the metal wire. The upper end of the heating channel 6 passes through the stirring needle 3 and is fixedly connected to the housing 1. An extrusion assembly is fixedly mounted on the heating channel 6. A smoke pipe 7 is fixedly mounted on the extrusion assembly, and the upper end of the smoke pipe 7 passes through the housing 1 and is connected to a negative pressure fan.

[0035] When using an electric arc as a heat source, two continuously fed metal wires are connected to the positive and negative poles of a DC current, respectively. At the moment when the ends of the metal wires are short-circuited, the ends of the two metal wires melt simultaneously and are sprayed onto the surface of the substrate under the action of a high-speed airflow to form a coating.

[0036] In this embodiment, two continuously fed metal wires enter the heating channel 6 inside the stirring needle 3. When the high-frequency AC power in the AC power box 2 passes through the heating coil 5, it generates an alternating magnetic field around the heating coil 5. The heating channel 6 inside the stirring needle 3 acts as a heated conductor. The magnetic field passes through the heating channel 6 in the heating coil 5 to generate an induced current and form eddy currents. When the eddy currents flow on the surface of the heating channel 6, the heating channel 6 heats up. When the metal wire passes through the spiral heating channel 6, the heating time of the metal wire is increased, and it becomes molten and enters the extrusion assembly and is ejected from the spinneret 301.

[0037] The high-temperature steam generated by the heating of the metal wire is discharged through the flue 7 under the action of the negative pressure fan. After the metal steam is filtered by dust removal, it is discharged into the air, reducing air pollution quality.

[0038] See Figure 1 and Figure 2 and Figure 3Furthermore, it also includes a protective sleeve 8 that is rotatably installed inside the housing 1. The lower end of the protective sleeve 8 penetrates the housing 1 and is slidably mounted with a fly plate 9. A sealed bearing 10 is fixedly installed between the protective sleeve 8 and the stirring needle 3.

[0039] Inside the housing 1, the stirring needle 3 is coaxially mounted inside the protective sleeve 8. The protective sleeve 8 can rotate within the housing 1 along the axis of the housing 1 relative to the stirring needle 3. The rotating protective sleeve 8 can drive the slidingly connected fly plate 9 to stir and rub the surface of the substrate to produce severe plastic deformation, so that the filaments on the substrate are further rolled into a dense coating.

[0040] See Figure 1 and Figure 2 Furthermore, a toothed ring 11 is fixedly installed on the protective sleeve 8, and a motor 12 is fixedly installed inside the housing 1. A conical tooth 13 that meshes with the toothed ring 11 is fixedly installed at the output end of the motor 12.

[0041] During the operation of motor 12, the output end of motor 12 drives bevel gear 13 to rotate, and the rotating bevel gear 13 drives the meshing gear ring 11 to rotate, providing power for the rotation of protective sleeve 8.

[0042] See Figure 3 and Figure 4 and Figure 7 The molten metal wire flows slowly and tends to accumulate in the heating channel 6. Therefore, the extrusion assembly in this solution has been further optimized.

[0043] The extrusion assembly includes: a melting chamber 14 fixedly installed on the heating channel 6, with two meshing extrusion gears 15 rotatably installed inside the melting chamber 14, and a drive gear 16 rotatably installed on the outer wall of the melting chamber 14, coaxial with one side of the extrusion gear 15; a horizontal plate 17 rotatably installed inside the stirring needle 3, with two symmetrically arranged drive rods 18 rotatably installed above the horizontal plate 17, the upper end of the drive rod 18 penetrating through the stirring needle 3 and fixedly installed on the opposite surface of the protective sleeve 8 with a magnetic block 19 of opposite magnetic properties, and an arc-shaped rack 20 fixedly installed below the horizontal plate 17, meshing with the drive gear 16.

[0044] During the rotation of the protective sleeve 8, when the magnetic block 19 on the protective sleeve 8 rotates to above the drive rod 18 on one side, the mutually attracted magnetic blocks 19 will pull the drive rod 18 upward. The rising drive rod 18 will drive the horizontal plate 17 on the same side to rotate. At this time, the arc-shaped rack 20 on the horizontal plate 17 will drive the meshing drive gear 16 to rotate. The rotating drive gear 16 will cause the two meshing extrusion gears 15 in the melting chamber 14 to rotate. Due to the continuous operation of the extrusion gears 15, the melting chamber 14 is divided into two independent parts, namely the suction chamber and the discharge chamber. When the extrusion gears 15 go from meshing to disengaging, a local vacuum is formed in the suction chamber. The molten material is sucked in. The sucked-in molten material fills each tooth valley of the extrusion gear 15 and is carried to the discharge chamber. When the extrusion gears 15 mesh, the molten material is pressurized and discharged from the spinneret 301.

[0045] See Figure 4 Furthermore, a slide rail seat 28 is fixedly installed inside the stirring needle 3, and the drive rod 18 is slidably installed inside the slide rail seat 28.

[0046] During the period when the magnetic block 19 on the protective sleeve 8 pulls the drive rod 18, the slide rail seat 28 constrains the sliding direction of the drive rod 18, effectively preventing the arc rack 20 from derailing from the drive gear 16.

[0047] See Figure 3 and Figure 7 Furthermore, a breathable membrane 1401 is fixedly installed inside the melting chamber 14, and a smoke collection chamber is formed between the breathable membrane 1401 and the top of the melting chamber 14.

[0048] The smoke and dust generated when the metal wire melts enter the smoke collection chamber through the breathable membrane 1401 and converge. A negative ion generator is fixedly installed in the smoke collection chamber. After the current passes through the negative ion generator, a DC negative high voltage is formed. Then, a large number of free electrons are emitted from the emitter head, which adsorb larger suspended particles in the smoke and finally fall down. The purified air is discharged through the smoke pipe 7.

[0049] In summary, in this embodiment, two continuously fed metal wires enter the heating channel 6 inside the stirring needle 3. The heating coil 5 heats the heating channel 6, and the metal wires in the heating channel 6 are gradually heated to become molten material. The molten material enters the melting chamber 14, and the smoke generated when the metal wires melt passes through the breathable membrane 1401 and enters the smoke collection chamber to converge. A negative ion generator is fixedly installed in the smoke collection chamber. After the current passes through the negative ion generator, a DC negative high voltage is formed, and then a large number of free electrons are emitted from the emitter head to adsorb larger suspended particles in the smoke. Finally, they fall down, and the purified air is discharged through the smoke pipe 7.

[0050] During the operation of motor 12, the magnetic block 19 on the protective sleeve 8 sequentially attracts two drive rods 18 to rise. The rising drive rods 18 drive the horizontal plate 17 on the same side to rotate. At this time, the arc-shaped rack 20 on the horizontal plate 17 drives the meshing drive gear 16 to rotate. The rotating drive gear 16 causes the two meshing extrusion gears 15 in the melting chamber 14 to rotate. Due to the continuous operation of the extrusion gears 15, the melting chamber 14 is divided into two independent parts, namely the suction chamber and the discharge chamber. When the extrusion gears 15 go from meshing to disengaging, a local vacuum is formed in the suction chamber. The molten material is sucked in and fills each tooth valley of the extrusion gears 15 and is carried to the discharge chamber. When the extrusion gears 15 mesh, the molten material is pressurized and sprayed onto the substrate by the discharge spinneret 301. At this time, the rotating protective sleeve 8 can drive the slidingly connected fly plate 9 to stir and rub the surface of the substrate to produce violent plastic deformation, so that the filaments on the substrate are further rolled into a dense coating. Example

[0051] See Figures 1-7 The solution is basically the same as in Example 1, but the entire technical solution has been further optimized based on Example 1.

[0052] The presence of pores within the coating produced by electric arc heating degrades its corrosion resistance and reduces its bonding strength, thereby impairing its mechanical properties. (See also...) Figure 1 and Figure 2 and Figure 6 The wire-feeding electromagnetic jet additive manufacturing apparatus in this embodiment further includes: a plurality of metal rods 21 slidably installed inside the housing 1, the number of metal rods 21 being four and arranged in a ring. Electromagnetic pulse coils 24 are fitted on the metal rods 21, and the lower ends of the metal rods 21 penetrate through the housing 1 and are collectively mounted on a drive plate 22. The drive plate 22 has a groove 2201 on the side near the flyboard 9 and a connecting rod 23 that slides in the groove 2201. The lower end of the connecting rod 23 is fixedly connected to the flyboard 9.

[0053] Since the magnetic field density is greatest at the center of the electromagnetic pulse coil 24, the center of the electromagnetic pulse coil 24 is the position with the strongest magnetic force. When the electromagnetic pulse coil 24 is energized, the internal metal rod 21 will oscillate back and forth within the electromagnetic pulse coil 24 for several cycles before being attracted to the center of the electromagnetic pulse coil 24. Therefore, during the oscillation cycle and the process of being attracted into the electromagnetic pulse coil 24, the drive plate 22 can drive the fly plate 9 to quickly impact the molten material on the substrate, so that the molten material forms a metallurgical bond with the upper surface of the substrate.

[0054] See Figure 5Furthermore, a limiting seat 25 is fixedly installed inside the housing 1, and a limiting sleeve 2501 is installed at equal intervals along the circumference of the limiting seat 25. The metal wire connecting the adjacent electromagnetic pulse coils 24 is fixed inside the limiting sleeve 2501.

[0055] Adjacent electromagnetic pulse coils 24 are connected in series. When energized, the electromagnetic pulse coils 24 simultaneously generate a magnetic field that acts on the metal rod 21.

[0056] See Figure 1 and Figure 2 and Figure 6 Furthermore, the upper surface of the fixing base 4 extends inward to form a groove 401, within which multiple push rods 26 are elastically connected. The number of push rods 26 is the same as that of the metal rods 21, and they are located on the same axis as the metal rods 21. A push plate 27, which contacts the top of the push rods 26, is fixedly installed below the toothed ring 11.

[0057] Since the electromagnetic pulse coil 24 remains energized, the metal rod 21 stops changing after being drawn into the electromagnetic pulse coil 24. During the rotation cycle of the toothed ring 11, the push plate 27 on the lower surface of the toothed ring 11 pushes the push rod 26 down. The sliding push rod 26 pushes the metal rod 21 down, away from the center position of the electromagnetic pulse coil 24. When the push plate 27 releases the pressure on the push rod 26, the metal rod 21 will be drawn back into the electromagnetic pulse coil 24, forming a reciprocating motion, causing the flying plate 9 to continuously strike the substrate at high speed.

[0058] A wire-feed electromagnetic jet additive manufacturing method, the operation steps of which are as follows:

[0059] Step 1: Two metal wires are continuously fed into the heating channel 6 inside the stirring needle 3. When the high-frequency AC power in the AC power box 2 passes through the heating coil 5, it generates an alternating magnetic field around the heating coil 5. The heating channel 6 inside the stirring needle 3 acts as a heated conductor. The magnetic field passes through the heating channel 6 in the heating coil 5 to generate an induced current and form eddy currents. When the eddy currents flow on the surface of the heating channel 6, the heating channel 6 is heated. When the metal wire passes through the spiral heating channel 6, the heating time of the metal wire is increased, and it becomes molten and enters the extrusion assembly and is ejected from the spinneret 301.

[0060] Step 2: The molten material enters the melting chamber 14. The smoke and dust generated when the metal wire melts enter the smoke collection chamber through the breathable membrane 1401 and converge. A negative ion generator is fixedly installed in the smoke collection chamber. After the current passes through the negative ion generator, a DC negative high voltage is formed. Then, a large number of free electrons are emitted from the emitter head, which adsorb larger suspended particles in the smoke and finally fall down. The purified air is discharged through the smoke pipe 7.

[0061] Step 3: When the electromagnetic pulse coil 24 is energized, the internal metal rod 21 will oscillate back and forth in the electromagnetic pulse coil 24 for several cycles and then be attracted to the center of the electromagnetic pulse coil 24. Therefore, during the oscillation cycle and the process of being attracted into the electromagnetic pulse coil 24, the drive plate 22 can drive the flying plate 9 to quickly impact the molten material on the substrate, so that the molten material forms a metallurgical bond with the upper surface of the substrate.

[0062] Step 4: While the drive plate 22 drives the fly plate 9 to reciprocate, the fly plate 9 rotates under the action of the motor 12, which generates violent plastic deformation on the surface of the substrate by stirring and friction, so that the filaments on the substrate are further rolled into a dense coating.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wire-feeding type electromagnetic jet additive manufacturing device, comprising a shell (1), an alternating current power supply box (2) is fixedly installed on the shell (1), a stirring needle (3) is arranged in the shell (1), characterized in that, Also include: The fixed seat (4) is fixedly installed in the shell (1), and a heating coil (5) is arranged between the fixed seat (4) and the stirring needle (3), and the input end of the heating coil (5) is connected with the AC power supply box (2) through a wire; The lower end of the stirring needle (3) is provided with a spinneret (301) and a heating channel (6) matched with the spinneret (301), the upper end of the heating channel (6) penetrates the stirring needle (3) and is fixedly connected with the shell (1), and an extrusion assembly is fixedly installed on the heating channel (6); The smoke pipe (7) is fixedly installed on the extrusion assembly, the upper end of the smoke pipe (7) penetrates the shell (1) and is connected with a negative pressure fan; Also include the protective sleeve (8) rotatably installed in the shell (1), the lower end of the protective sleeve (8) penetrates the shell (1) and is slidably installed with the flying plate (9), and the sealing bearing (10) is fixedly installed between the protective sleeve (8) and the stirring needle (3); The tooth ring (11) is fixedly installed on the protective sleeve (8), the motor (12) is fixedly installed in the shell (1), and the output end of the motor (12) is fixedly installed with the tapered tooth (13) engaged with the tooth ring (11). The extrusion assembly comprises: The melting chamber (14) is fixedly installed on the heating channel (6), two meshing connected extrusion gears (15) are rotatably installed in the melting chamber (14), and a driving gear (16) coaxial with one side of the extrusion gear (15) is rotatably installed on the outer wall of the melting chamber (14); The horizontal plate (17) is rotatably installed in the stirring needle (3), two symmetrically arranged driving rods (18) are rotatably installed above the horizontal plate (17), the upper end of the driving rod (18) penetrates the stirring needle (3) and is fixedly installed with the magnetic block (19) with opposite magnetism on the opposite surface of the protective sleeve (8), and the arc-shaped rack (20) engaged with the driving gear (16) is fixedly installed below the horizontal plate (17); The sliding rail seat (28) is fixedly installed in the stirring needle (3), and the driving rod (18) is slidably installed in the sliding rail seat (28); The air permeable membrane (1401) is fixedly installed in the melting chamber (14), and the air permeable membrane (1401) and the top of the melting chamber (14) form a smoke collecting cavity.

2. The wire-fed electromagnetic jet additive manufacturing device of claim 1, wherein, Also include: A plurality of metal rods (21) are slidably installed in the shell (1), the metal rods (21) are sleeved with electromagnetic pulse rings (24), the lower ends of the metal rods (21) penetrate the shell (1) and are jointly installed with a driving plate (22), the side close to the flying plate (9) of the driving plate (22) is provided with a sliding groove (2201) and a connecting rod (23) matched with sliding in the sliding groove (2201), and the lower end of the connecting rod (23) is fixedly connected with the flying plate (9).

3. The wire-fed electromagnetic jet additive manufacturing device of claim 2, wherein, The limiting seat (25) is fixedly installed in the shell (1), the limiting sleeves (2501) are circumferentially equidistantly installed on the limiting seat (25), and the metal wires connected between the adjacent electromagnetic pulse rings (24) are fixedly installed in the limiting sleeves (2501).

4. The wire-fed electromagnetic jet additive manufacturing device of claim 3, wherein, The upper surface of the fixed seat (4) extends inwardly to form a groove (401), and a plurality of push rods (26) are elastically connected in the groove (401), and a push plate (27) in contact with the top end of the push rod (26) is fixedly installed below the tooth ring (11).

5. A wire-fed electromagnetic jet additive manufacturing method using the wire-fed electromagnetic jet additive manufacturing device according to any one of claims 1 to 4, characterized by, The operation steps are as follows: Step 1: The wire material is sent to the stirring needle (3) by the wire feeding mechanism to heat to a molten state; Step 2: The flying plate (9) carries the molten material to impact the base plate at high speed to form a metallurgical bond; Step 3: The motor (12) drives the protective sleeve (8) to rotate to make the flying plate (9) perform a friction stir rolling movement.

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