CN111496345A - Method and device for manufacturing melting electrode electric arc and hot filler wire composite single-electric-arc twin-wire additive - Google Patents
Method and device for manufacturing melting electrode electric arc and hot filler wire composite single-electric-arc twin-wire additive Download PDFInfo
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- CN111496345A CN111496345A CN201910100689.8A CN201910100689A CN111496345A CN 111496345 A CN111496345 A CN 111496345A CN 201910100689 A CN201910100689 A CN 201910100689A CN 111496345 A CN111496345 A CN 111496345A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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Abstract
The invention discloses a method and a device for additive manufacturing of a consumable electrode electric arc and hot-filler wire composite single electric arc twin wire. The device includes: industrial robot, consumable utmost point welding power, vibration material disk device, compound wire feeder, hot wire heating device, wherein compound wire feeder specifically includes: the wire feeding device comprises a consumable electrode wire feeding mechanism, a consumable electrode wire feeding control module, a wire filling mechanism and a single wire filling wire feeding control module; the hot wire heating device specifically comprises: a hot wire heating power supply and a heating control module; the wire filling and feeding support and the consumable electrode welding gun are fixed together and move along with the wire filling and feeding support and the consumable electrode welding gun. Compared with the electric arc additive manufacturing of a monofilament consumable electrode, the device provided by the invention can obviously increase the deposition amount of additive metal, increase the electric arc additive manufacturing efficiency of metal materials, reduce the dilution rate, and is suitable for the electric arc additive manufacturing of metals such as stainless steel, high nitrogen steel, low alloy structural steel and the like.
Description
Technical Field
The invention belongs to the technical field of electric arc additive manufacturing, and particularly relates to a method and a device for manufacturing a single electric arc twin-wire additive by compounding a consumable electrode electric arc and a hot-filler wire.
Background
The electric arc additive manufacturing technology was originally traced back to a patent of forming metal parts by using an electric arc as a heat source disclosed by Baker in 1925, but the technology did not draw much attention at that time. Until the end of the 20 th century, with the rapid development of welding technology and digital control technology, the electric arc additive manufacturing technology has great advantages in the rapid forming of large-scale complex structural members, more and more research institutions at home and abroad start the research work of the electric arc additive manufacturing technology one after another, the application of the technology in industry is increasingly wide, the subsequent new requirements are increasingly enhanced, and the improvement of deposition efficiency and the reduction of dilution rate are particularly important for meeting the industrial requirements of high efficiency and high quality. Compared with the electric arc additive manufacturing technology of the monofilament consumable electrode, the electric arc additive manufacturing method and the device of the consumable electrode and the hot filler composite single electric arc dual-wire additive manufacturing can improve the amount of filling phase metal and increase the stacking speed; compared with a dual-wire dual-power additive manufacturing technology, the dilution rate can be reduced; compared with a cold filler wire electric arc additive manufacturing technology, the wire can be preheated, heat input is reduced, dilution rate is reduced, and stacking efficiency is improved.
The patent No. Z L03111560.8 discloses a composite welding method of tungsten electrode-consumable electrode argon arc welding single-side double-arc welding same molten pool, which adopts double power supplies, namely, TIG welding and MIG welding, and adopts respective power supplies, wherein the arc of the non-consumable electrode and the arc of the consumable electrode simultaneously act to generate a molten pool for welding, a welding seam is adopted, the welding speed is high, but the forming rate of the double power supplies is poor.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a method and an apparatus for additive manufacturing of a consumable electrode arc and hot-filler wire composite single-arc twin-wire, which can improve the deposition rate and further increase the manufacturing efficiency while ensuring a relatively low dilution ratio.
In order to achieve the purpose, the invention provides the following technical scheme:
an apparatus for consumable electrode electric arc and hot-filler wire composite single-arc twin-wire additive manufacturing, comprising: the device comprises an industrial robot, a consumable electrode welding power supply, a material additive manufacturing device, a composite wire feeding mechanism and a hot wire heating device; the industrial robot is connected with the consumable electrode welding power supply to realize signal control of the control power supply, and the industrial robot and the consumable electrode welding power supply are connected with the composite wire feeding mechanism to realize wire feeding control of the wire feeding mechanism. The composite wire feeding mechanism and the hot wire heating device are connected with the additive manufacturing device and the industrial robot together, so that wire feeding and walking of wires are realized.
The additive manufacturing apparatus specifically includes: the consumable electrode welding gun is fixed on the industrial robot, and a consumable electrode welding power supply is connected with the robot control cabinet and the consumable electrode wire feeding control module; the substrate is fixed on the workbench;
the composite wire feeding mechanism specifically comprises: the melting electrode wire feeding mechanism is connected with the melting electrode wire feeding control module, the wire filling mechanism is connected with the wire feeding support, the wire filling mechanism is connected with the single wire filling wire feeding control module, and the single wire filling wire feeding control module is connected with the robot control cabinet;
the hot wire heating device specifically comprises: the positive electrode of the hot wire heating power supply is connected with the wire feeding support, the negative electrode of the hot wire heating power supply is connected with the workbench, and the heating control module is connected with the robot control cabinet and the hot wire heating power supply;
the wire filling mechanism is directly controlled by the robot control cabinet through a single wire filling and feeding control module.
A single electric arc additive manufacturing method is adopted to melt two wires, wherein one wire is a conductive melting electrode wire, and the other wire is a resistance heating wire.
The hot wire feeding support is fixed with the consumable electrode welding gun, and the hot wire passes through the heating control module (controlling the heating current to adjust the heating temperature).
The method for the device based on the consumable electrode electric arc and hot wire filling composite single-electric-arc twin-wire additive manufacturing specifically comprises the following steps:
1) and installing a device for the single-arc twin-wire additive manufacturing of the consumable electrode electric arc and the hot-filler wire based on the device.
2) And adjusting the distance between the welding gun and the surface of the workpiece and the distance between the wire filling material and the surface of the workpiece.
3) Before the overlaying, setting basic parameters, planning an overlaying path according to the geometric parameters of the component, and setting a program.
4) The arc starting point is selected on the substrate, the robot carries the consumable electrode welding gun to the arc starting point, the height of the consumable electrode welding gun from a workpiece is controlled, the wire feeding speed of the consumable electrode wire feeding mechanism is set through the consumable electrode wire feeding control module, the wire feeding speed of the wire feeding mechanism is set through the single wire filling wire feeding control module, and the heating current of the hot wire heating power supply is set through the hot wire heating control module.
5) The robot control cabinet sends a signal to a consumable electrode welding power supply to start an arc, after the arc is ignited, the robot control cabinet sends a signal to the single filler wire feeding control module and the hot wire heating control module, then wires sent out from the filler wire mechanism are heated by the hot wire heating device, enter a consumable electrode arc area and are synchronously melted with the consumable electrode wires to form a same molten pool, and then a first layer of a sample piece is stacked according to a preset robot walking track; when the layer is stacked, the robot control cabinet sends signals to the consumable electrode welding power supply, the single filler wire feeding control module and the hot wire heating control module, the filler wire mechanism and the consumable electrode wire feeding mechanism stop feeding wires at the same time, the consumable electrode welding power supply and the heating power supply stop supplying power, the electric arc is extinguished, and the next layer of stacking is prepared.
6) After waiting between the layers, the next layer starts to be stacked.
7) And repeating the steps 5) -6) until the preset size requirement is met, and stopping the stacking.
Preferably, the height of the tail end of the wire filling welding gun from the working surface is 7-10mm, and the height of the wire filling material from the tail end of the welding gun at the axis position of the welding gun is 3-4 mm.
As an optimal scheme, the included angle between the wire filling material and the axis of the welding gun is 30-45 degrees.
Preferably, the fusion electrode deposition current can be 40A-400A, the current regulation range of the heating power supply is 0-200A, the deposition speed is 10cm/min-70cm/min, and the protective gas flow can be 10L/min-30L/min.
Preferably, the current regulation range of the heating power supply is 20-200A, the deposition amount of the wire can be increased under the condition of not changing the current of the welding power supply, and the expression of the preheating temperature of the wire is
Wherein L is the dry elongation of the wire, α is the temperature coefficient of resistance, T0At an initial temperature, p0Is a wire material T0Resistivity at temperature, rho is the resistivity of the wire, IHThe hot wire current, r the wire radius and v the wire feed speed.
As a preferred scheme, the consumable electrode wire can be a stainless steel, a high-nitrogen steel, a low-alloy structural steel and other metal wires, and the diameter of the wire can be 1.0mm-1.6 mm; the wire filling material can be stainless steel, high nitrogen steel, low alloy structural steel and other metal wires, and the diameter of the wire can be 1.0-1.6 mm.
Compared with the prior art, the invention has the following remarkable advantages:
1. compared with the common tungsten electrode-consumable electrode indirect arc additive manufacturing, the invention directly heats the surface of the workpiece, has high deposition rate, and can utilize the electric arc to break the oxide layer of the material which is easy to form the oxide layer on the surface of low-carbon steel and the like
2. Compared with the double-power-supply single-side double-arc same-molten pool composite additive manufacturing method of the tungsten electrode-consumable electrode argon arc welding, the technology adopts a single power supply, and has the advantages of high welding speed, good weld forming effect and low dilution rate.
3. Compared with the common consumable electrode arc welding additive manufacturing technology, the invention improves the deposition efficiency under the condition of keeping low dilution rate, further improves the deposition efficiency through the wire heating device, reduces the dilution rate and improves the member forming condition.
Drawings
FIG. 1 is a schematic structural diagram of the apparatus of the present invention.
FIG. 2 is an appearance view of a low carbon steel sample.
FIG. 3 is an external view of a stainless steel sample.
The welding robot comprises a robot control cabinet 1, a consumable electrode welding power supply 2, a robot 3, a consumable electrode welding gun 4, a consumable electrode wire feeding control module 5, a consumable electrode wire feeding mechanism 6, a wire filling mechanism 7, a single wire filling wire feeding control module 8, a wire feeding support 9, a hot wire heating power supply 10, a workbench 11, a workpiece 12 and a hot wire heating control module 13.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The specifically adopted equipment models are as follows: ABB IRB 2600 arc welding robot, ABB IRC5 control cabinet, and Fowler Fronius Magic Advanced 4000 type welding machine as consumable electrode power source.
In the invention, the current regulation range of the heating power supply is 20-200A, the deposition amount of the wire can be increased under the condition of not changing the current of the welding power supply, and the preheating temperature expression of the wire is
Wherein L is the dry elongation of the wire, α is the temperature coefficient of resistance, T0At an initial temperature, p0Is a wire material T0Resistivity at temperature, rho is the resistivity of the wire, IHThe hot wire current, r the wire radius and v the wire feed speed.
Example 1
The invention provides a method and a device for additive manufacturing of a consumable electrode electric arc and hot-filler wire composite single electric arc twin wire, and provides a low-carbon steel additive manufacturing mode. The specific process is as follows:
the method is obtained based on a device for manufacturing the consumable electrode electric arc and hot-filler wire composite single-electric-arc twin-wire additive, and comprises the following specific steps:
1) preparing an additive device and wires, wherein the melting electrode wires are ER50-6 low-carbon steel wires, and the diameter of each wire is 1.0 mm; the wire filling material is ER50-6 low-carbon steel wire with the diameter of 1.0 mm.
2) And adjusting the distance between the welding gun and the surface of the workpiece and the distance between the wire filling material and the surface of the workpiece.
3) Setting basic parameters, wherein the fusion electrode deposition current can be 150A, the wire heating current of a heating power supply is 55A, the stacking speed is 60cm/min, the protective gas flow is 20L/min, the wire feeding speed of a fusion electrode wire feeder is 4.8m/min, and the wire feeding speed of a wire filling mechanism is 1.6 m/min.
4) Planning a surfacing path according to geometrical parameters of a component, starting arc deposition, controlling the distance between a consumable electrode welding gun and a workpiece, selecting an arc starting point on a Q235 low-carbon steel substrate, sending a signal to a consumable electrode welding power supply by a robot control cabinet to start arc, igniting the arc, sending a signal to a hot wire heating control module by the robot control cabinet, heating wires sent out from a wire filling mechanism by a hot wire heating device, entering a consumable electrode arc area, synchronously melting the wires with the consumable electrode wires to form a same molten pool, and then depositing a first layer of a sample according to a preset robot walking track; when the layer is stacked, the robot control cabinet sends signals to the consumable electrode welding power supply, the single filler wire feeding control module and the hot wire heating control module, the filler wire mechanism and the consumable electrode wire feeding mechanism stop feeding wires at the same time, the heating power supply stops supplying power, electric arcs are extinguished, and the next layer of stacking is prepared.
5) After waiting for 120s between layers, starting to lay the next layer;
6) and repeating the steps 4) -5) until the preset size requirement is met, and stopping the stacking.
Preferably, the height difference between the axial position of the filler wire and the surface of the workpiece is 4.0mm, and the height of the tail end of the welding gun from the surface of the workpiece is 10.0 mm. The included angle between the axis of the welding gun and the workbench is 90 degrees, and the included angle between the wire filling material and the axis of the welding gun is 30 degrees
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. All modifications, substitutions, improvements and the like that come within the spirit of the invention are intended to be within the scope of the invention.
Example 2
The invention provides a stainless steel additive manufacturing method based on a consumable electrode electric arc and hot-filler wire composite single-electric-arc twin-wire additive manufacturing method and device. The specific process is as follows:
the method is obtained based on a device for manufacturing the consumable electrode electric arc and hot-filler wire composite single-electric-arc twin-wire additive, and comprises the following specific steps:
1) preparing an additive device and wires, wherein the melting electrode wire material ER 316L stainless steel wire material with the diameter of 1.2mm, and the filling wire material ER 316L stainless steel wire material with the diameter of 1.2 mm.
2) And adjusting the distance between the welding gun and the surface of the workpiece and the distance between the wire filling material and the surface of the workpiece.
3) Setting basic parameters, wherein the fusion electrode deposition current can be 180A, the wire heating current of a heating power supply is 65A, the stacking speed is 50cm/min, the protective gas flow is 22L/min, the wire feeding speed of a fusion electrode wire feeder is 7.8m/min, and the wire feeding speed of a wire filling mechanism is 2.1 m/min.
4) Planning a surfacing path according to geometrical parameters of a component, starting arc deposition, controlling the distance between a consumable electrode welding gun and a workpiece, selecting an arc starting point on a 304 stainless steel substrate, sending a signal to a consumable electrode welding power supply by a robot control cabinet for arc starting, igniting an electric arc, sending a signal to a hot wire heating control module by the robot control cabinet, heating a wire material sent out from a wire filling mechanism by a hot wire heating device, entering a consumable electrode arc area, synchronously melting the wire material with the consumable electrode wire material to form a same molten pool, and then depositing a first layer of a sample according to a preset robot walking track; when the layer is stacked, the robot control cabinet sends signals to the consumable electrode welding power supply, the single filler wire feeding control module and the hot wire heating control module, the filler wire mechanism and the consumable electrode wire feeding mechanism stop feeding wires at the same time, the heating power supply stops supplying power, electric arcs are extinguished, and the next layer of stacking is prepared.
5) After waiting for 150s between the layers, starting to lay the next layer;
6) and repeating the steps 4) -5) until the preset size requirement is met, and stopping the stacking.
Preferably, the height difference between the filler wire and the surface of the workpiece is 3.0mm, and the height of the welding gun from the working surface is 10.0 mm. And the included angle between the feeding direction of the external wire and the welding gun is 45 degrees.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. All modifications, substitutions, improvements and the like that come within the spirit of the invention are intended to be within the scope of the invention.
Comparative example 1
Low carbon steel arc additive manufacturing is carried out by using a GMA monofilament arc additive manufacturing mode, and compared with the technology, the wire is an ER50-6 low carbon steel wire with the diameter of 1.0 mm. The comparative results are as follows:
comparative example 2
Stainless steel arc additive manufacturing is carried out by using a GMA monofilament arc additive manufacturing mode, compared with the technology, the wire is an ER 316L stainless steel wire, the diameter of the wire is 1.2mm, and the comparison result is as follows:
the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. All modifications, substitutions, improvements and the like that come within the spirit of the invention are intended to be within the scope of the invention.
Claims (9)
1. A device for manufacturing a single-arc twin-wire additive by compounding consumable electrode electric arc and hot filler wire is characterized by comprising: the device comprises an industrial robot, a consumable electrode welding power supply, a material additive manufacturing device, a composite wire feeding mechanism and a hot wire heating device; the industrial robot is connected with a consumable electrode welding power supply to realize signal control of a control power supply, and the industrial robot and the consumable electrode welding power supply are connected with a composite wire feeding mechanism to realize wire feeding control of the wire feeding mechanism; the composite wire feeding mechanism and the hot wire heating device are connected with the additive manufacturing device and the industrial robot together, so that wire feeding and walking of wires are realized;
the additive manufacturing apparatus specifically includes: a consumable electrode welding gun (4) is fixed on the industrial robot (3), and a consumable electrode welding power supply (2) is connected with the robot control cabinet (1) and the consumable electrode wire feeding control module (5); the base plate (12) is fixed on the workbench (11);
the compound wire feeding mechanism specifically comprises: the consumable electrode wire feeding mechanism (6) is connected with the consumable electrode wire feeding control module (5), the wire filling mechanism (7) is connected with the wire feeding support (9), the wire filling mechanism (7) is connected with the single wire filling wire feeding control module (8), and the single wire filling wire feeding control module (8) is connected with the robot control cabinet (1);
the hot wire heating device specifically comprises: the positive pole of a hot wire heating power supply (10) is connected with a wire feeding support (9), the negative pole of the hot wire heating power supply (10) is connected with a workbench (11), and a heating control module (13) is connected with the robot control cabinet (1) and the hot wire heating power supply (10).
2. The apparatus for consumable electrode arc and hot-wire-filling composite single-arc twin-wire additive manufacturing according to claim 1, wherein the wire-filling mechanism (7) is directly controlled by the robot control cabinet (1) through a single wire-filling wire feeding control module (8).
3. The consumable electrode arc and hot-filler wire composite single-arc twin-wire additive manufacturing device according to claim 1, wherein the wire feeding support (9) is fixed with a consumable electrode welding gun, and the hot wire controls the heating current to adjust the heating temperature through the heating control module (13).
4. A manufacturing method of a single-arc twin-wire additive device based on the consumable electrode arc and hot-wire filling composite of any one of claims 1 to 3 is characterized by comprising the following specific steps:
1) installing an additive manufacturing device;
2) adjusting the distance between the welding gun, the filler wire and the surface of the workpiece;
3) before the overlaying, setting basic parameters, planning an overlaying path according to the geometric parameters of the component, and setting a program;
4) selecting an arc starting point on a substrate, controlling the height of a consumable electrode welding gun (4) to a workpiece (12) by the aid of a robot (3) carrying the consumable electrode welding gun (4) to the arc starting point, setting the wire feeding speed of a consumable electrode wire feeding mechanism (6) through a consumable electrode wire feeding control module (5), setting the wire feeding speed of a wire filling mechanism (7) through a single wire filling wire feeding control module (8), and setting the heating current of a hot wire heating power supply (10) through a hot wire heating control module (13);
5) the robot control cabinet (1) sends a signal to a consumable electrode welding power supply (2) for arc striking, after an electric arc is ignited, the robot control cabinet (1) sends a signal to a single filler wire feeding control module (8) and a hot wire heating control module (13), then a wire material sent out from a filler wire mechanism (7) is heated by a hot wire heating device, enters a consumable electrode arc area and is synchronously melted with the consumable electrode wire material to form a same molten pool, and then a first layer of a sample piece is stacked according to a preset robot walking track; when the layer is stacked, the robot control cabinet (1) sends signals to the consumable electrode welding power supply (2), the single filler wire feeding control module (8) and the hot wire heating control module (13), the filler wire mechanism (7) and the consumable electrode wire feeding mechanism (6) stop feeding wires at the same time, the consumable electrode welding power supply (2) and the heating power supply (10) stop supplying power, the electric arc is extinguished, and the next layer of stacking is prepared;
6) after the interlayer waiting, the next layer starts to be stacked;
7) and repeating the steps 5) -6) until the preset size requirement is met, and stopping the stacking.
5. The manufacturing method of the consumable electrode electric arc and hot-wire-filling composite single-arc twin-wire additive device according to claim 4, wherein the height of the tail end of the wire-filling welding gun from the working surface is 6.0-12.0mm, and the height of the wire-filling wire from the tail end of the welding gun at the axial position of the welding gun is 3.0-9.0 mm.
6. The manufacturing method of the consumable electrode electric arc and hot-wire-filling composite single-electric-arc dual-wire additive device according to claim 4, wherein an included angle between a wire filling wire material and an axis of a welding gun is 30-45 degrees.
7. The manufacturing method of the consumable electrode electric arc and hot-filler wire composite single-arc twin-wire additive manufacturing device according to claim 4, wherein the consumable electrode deposition current can be 40A-400A, the deposition speed can be 10cm/min-70cm/min, and the protective gas flow can be 10L/min-30L/min.
8. The manufacturing method of the consumable electrode arc and hot-filler wire composite single-arc twin-wire additive device according to claim 4, wherein the current regulation range of the heating power supply is 20-200A, the deposition amount of the wire is increased under the condition of not changing the current of the welding power supply, and the preheating temperature expression of the wire is
Wherein L is the dry elongation of the wire, α is the temperature coefficient of resistance, T0At an initial temperature, p0Is a wire material T0Resistivity at temperature, rho is the resistivity of the wire, IHThe hot wire current, r the wire radius and v the wire feed speed.
9. The manufacturing method of the consumable electrode electric arc and hot-filler wire composite single-electric-arc twin-wire additive device according to claim 4, wherein the consumable electrode wire can be a metal wire such as stainless steel, high-nitrogen steel, low-alloy structural steel and the like, and the diameter of the consumable electrode wire can be 1.0mm-1.6 mm; the wire filling material can be stainless steel, high nitrogen steel, low alloy structural steel and other metal wires, and the diameter of the wire can be 1.0-1.6 mm.
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