CN115889940A - Equipment and method for preparing arc additive composite material by powder feeding mode of metal foil wrapped reinforced powder - Google Patents

Equipment and method for preparing arc additive composite material by powder feeding mode of metal foil wrapped reinforced powder Download PDF

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CN115889940A
CN115889940A CN202211369432.0A CN202211369432A CN115889940A CN 115889940 A CN115889940 A CN 115889940A CN 202211369432 A CN202211369432 A CN 202211369432A CN 115889940 A CN115889940 A CN 115889940A
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metal foil
powder
welding
welding wire
flux
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CN115889940B (en
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周祥曼
吕奇钊
田启华
杜义贤
付君健
冯雪亮
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China Three Gorges University CTGU
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Abstract

The invention discloses equipment and a method for preparing an electric arc additive composite material by a powder feeding mode of metal foil wrapped reinforced powder, which realize the compounding of third-phase reinforced powder and a base material and the manufacturing of related parts by combining the powder feeding mode of the metal foil wrapped reinforced powder with an additive manufacturing technology, and avoid the problem that a flux-cored wire is difficult to prepare particularly from light alloy. The method has the advantages of high material utilization rate, high stacking speed, accurate feeding position, unlimited part size and the like, and meanwhile, the coated powder can be flexibly adjusted according to requirements, and a modifier can be added according to the characteristics of the metal matrix material and the third phase material to increase the wettability between the third phase material and the metal matrix material so that the third phase material and the metal matrix material are easier to combine.

Description

Equipment and method for preparing arc additive composite material by powder feeding mode of metal foil wrapped reinforced powder
Technical Field
The invention relates to the field of third-phase reinforced metal matrix composite materials and additive manufacturing, in particular to equipment and a method for preparing an electric arc additive composite material by a powder feeding mode of metal foil wrapped reinforced powder.
Background
The metal matrix composite material can not only obtain good heat conduction performance, electric conduction performance, shock resistance, fatigue resistance and fracture performance of the matrix metal or alloy, but also obtain excellent performances such as high strength, high rigidity, excellent wear resistance, lower thermal expansion coefficient and the like. The conventional methods for manufacturing metal matrix composites include stir casting and powder metallurgy. However, the traditional composite material manufacturing mode is difficult to realize the manufacturing of complex parts and the manufacturing period is long.
Additive manufacturing technology has also been widely used in the field of composite material research in recent years as an emerging manufacturing technology. The existing additive manufacturing technology applied to metal composite materials mainly has the defects of high equipment cost, complex technical process parameters, limited size of formable parts and the like, and the application scenes of the laser selective melting technology and the electron beam selective melting technology are limited. The electric arc additive technology has the advantages of high accumulation rate, low equipment cost and capability of manufacturing large-scale complex parts, so that the electric arc additive technology is widely applied to the fields of aerospace, national defense war industry and the like.
The most common methods for manufacturing composite materials by arc additive manufacturing include direct powder feeding and flux-cored wire stacking. The direct powder feeding method mostly adopts gas as a carrier to feed powder, and the enhanced powder is fed into a molten pool and is stacked layer by layer to form a part; however, the gas powder feeding easily causes the reinforced powder to splash, so that the powder laying is not uniform, the problems of low powder utilization rate, difficult accurate control of powder feeding amount and the like are caused, and the performance of the composite material or parts can be seriously influenced; the flux-cored wire is obtained by drawing after being rolled, and light alloy is difficult to directly draw.
Disclosure of Invention
Aiming at the defects of the prior art and the method, the invention provides equipment and a method for preparing an electric arc additive composite material by a powder feeding mode of metal foil wrapped reinforced powder, which realize the compounding of third-phase reinforced powder and a matrix material and the manufacturing of related parts by combining the powder feeding mode of the metal foil wrapped reinforced powder with an additive manufacturing technology, and avoid the problem that particularly light alloy is difficult to prepare a flux-cored wire. The method has the advantages of high material utilization rate, high stacking speed, accurate feeding position, unlimited part size and the like, and meanwhile, the wrapped powder can be flexibly adjusted according to requirements, and a modifier can be added according to the characteristics of the metal matrix material and the third phase material to increase the wettability between the third phase material and the metal matrix material, so that the third phase material and the metal matrix material are easier to combine.
In order to achieve the technical features, the invention is realized as follows: an electric arc additive composite material preparation device adopting a powder feeding mode of metal foil wrapped reinforced powder comprises a welding system and a metal foil rolling system; the metal foil rolling system wraps the reinforcing powder in the metal foil to prepare a flux-cored metal foil-like welding wire and conveys the flux-cored metal foil-like welding wire to the welding system; the welding system initiates a high-energy electric arc to melt the welding wire and the similar flux-cored metal foil welding wire transmitted by the metal foil rolling and pressing system to form molten drops which form a welding bead on the substrate.
The welding system comprises a ceramic nozzle, a tungsten needle, a welding wire conveying wheel, a welding wire, an electric arc, a molten drop and a molten pool, wherein the tungsten needle is positioned inside the ceramic nozzle, the electric arc is initiated by the tungsten needle, the molten drop is obtained by melting the welding wire by the electric arc, the molten drop drops on the substrate to form the molten pool, and the molten pool forms a welding bead after solidification.
The metal foil rolling system comprises a metal foil roll, a powder hopper, a metal foil rolling device, a metal foil belt, a first pressing wheel, a conveying wheel, a flux-cored metal foil welding wire and a second pressing wheel;
the metal foil roll is positioned at the initial position of the metal foil rolling system and is responsible for providing raw material metal foil; the powder hopper is positioned above the metal foil roll, and the powder outlet is positioned in the middle of the metal foil strip and is responsible for providing reinforced powder and adjusting the flow rate of the powder according to actual requirements;
the metal foil belt is a raw material conveyed from a metal foil roll and passes through a metal foil roll maker;
the metal foil rolling device and the metal foil roll are positioned on the same straight line and positioned on the output side of the metal foil roll, and are used for rolling the metal foil roll with the reinforcing powder;
the first pressing wheel is positioned at the outlet of the metal foil coiling device and presses the metal foil strips with two folded sides into a similar flux-cored metal foil welding wire;
the conveying wheel is positioned on the left side of the first pressing wheel;
and the second pressing wheel is positioned at the tail end of the similar flux-cored metal foil welding wire and is responsible for pressing and compacting the similar flux-cored metal foil welding wire again and conveying the similar flux-cored metal foil welding wire into an electric arc in a welding system.
The metal foil rolling device is of a hollow structure in cross section and is used for folding two sides of a metal foil belt penetrating through the hollow structure.
The cross section of the hollow structure is triangular or arc-shaped.
The flux-cored metal foil welding wire can be made into a rectangular cross section shape and a circular cross section shape according to actual requirements.
The method for preparing the arc additive composite material by adopting the arc additive composite material preparation equipment adopting the powder feeding mode of metal foil-wrapped reinforced powder comprises the following steps of:
step1: preparing before welding;
step2: selecting welding parameters and metal foil rolling parameters;
step3: modeling and editing a welding program;
step4: starting welding and stacking;
step5: forming the required parts and carrying out post-treatment.
The specific operation of Step1 is as follows: the method comprises the following steps of (1) preprocessing a substrate before welding, removing oil stains and oxide skin on the surface to enable the substrate to meet the condition of surfacing, selecting reinforced powder according to the requirement, and carrying out primary processing on the reinforced powder;
the primary treatment of the reinforced powder refers to that the powder particles are ensured to be uniform and not to agglomerate through ultrasonic oscillation and ball milling series treatment;
the welding parameters in Step2 refer to welding current, welding voltage, welding speed and wire feeding speed of a welding wire;
the metal foil rolling parameters refer to the transmission speed of the metal foil strip, the flow rate of the enhanced powder, the extrusion force of the pressing wheel and the width of the metal foil similar to the flux-cored wire; the parameters can be flexibly adjusted according to actual needs;
the Step3 specifically comprises the steps of modeling a part by using CAD software, importing slice software for slice layering to obtain profile data of each section, planning a surfacing welding path, obtaining programming codes of the movement and wire feeding speed of a welding system, and recording the codes into the welding system;
the Step4 is specifically operated in such a way that the metal foil strip passes below the reinforced powder, and the reinforced powder falls in the middle of the metal foil strip; the metal foil strip with the reinforcing powder in the middle passes through a metal foil rolling device, the two sides of the metal foil strip are folded, and the metal foil strip is pressed by a first pressing wheel to form a flux-cored metal foil welding wire; the flux-cored metal foil welding wire is conveyed to a second pressing wheel to be pressed for the second time and is fed into an electric arc;
a tungsten needle in the welding system is responsible for initiating a high-energy electric arc, melting a welding wire and a similar flux-cored metal foil welding wire to form molten drops, forming a welding bead on a substrate, and stacking layer by layer according to a set program until the welding is finished;
the Step5 specifically comprises the steps of checking defects of the formed part, selecting a corresponding processing method according to the characteristics of the used material, improving the physical performance of the part, machining the part, controlling the geometric shape and size of the part and ensuring the mechanical performance of the part.
The invention has the following beneficial effects:
1. according to the invention, the compounding of the third phase reinforced powder and the matrix material and the manufacturing of related parts are realized by combining a powder feeding mode of wrapping the reinforced powder by the metal foil and an additive manufacturing technology, so that the problem that the flux-cored wire is difficult to prepare particularly from light alloy is solved.
2. The method has the advantages of high material utilization rate, high stacking speed, accurate feeding position, unlimited part size and the like, and meanwhile, the coated powder can be flexibly adjusted according to requirements, and a modifier can be added according to the characteristics of the metal matrix material and the third phase material to increase the wettability between the third phase material and the metal matrix material so that the third phase material and the metal matrix material are easier to combine.
3. The invention adopts the mode of wrapping powder by metal foil to feed powder, and can accurately control the content of the third-phase reinforcement material.
4. Compared with the traditional powder feeding mode, the invention greatly improves the utilization rate of materials, reduces the material loss in the manufacturing process, reduces the defect of air holes, reduces the production cost and reduces the pollution to the environment.
5. The flux-cored metal foil welding wire is simple to manufacture, simple in forming process, capable of quickly forming various complex parts, free of size limitation, capable of improving production efficiency and good in application prospect.
Description of the drawings:
fig. 1 is a schematic diagram of an arc additive composite material preparation method and equipment in a powder feeding mode of metal foil-wrapped reinforced powder.
Fig. 2 is a schematic view of a metal foil rolling system.
FIG. 3 is a schematic view of a coiled flux-cored metal foil-like welding wire having a rectangular cross-section.
FIG. 4 is a schematic view of a rolled circular cross-section flux-cored metal foil-like welding wire.
In the figure: the device comprises a ceramic nozzle 1, a tungsten needle 2, a welding wire conveying wheel 3, a welding wire 4, an electric arc 5, a molten drop 6, a molten pool 7, a metal foil coil 8, a powder hopper 9, a metal foil coil maker 10, a metal foil belt 11, a first pressing wheel 12, a conveying wheel 13, a flux-cored metal foil welding wire 14 and a second pressing wheel 15.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-4, an apparatus for preparing an arc additive composite material by a powder feeding method of a metal foil wrapped reinforced powder includes a welding system and a metal foil rolling system; the metal foil rolling system wraps the reinforcing powder in the metal foil to prepare a flux-cored metal foil-like welding wire 14 and conveys the flux-cored metal foil-like welding wire to a welding system; the welding system initiates a high-energy electric arc 5 to melt a welding wire 4 and a similar flux-cored metal foil welding wire 14 transmitted by a metal foil coiling and pressing system to form a molten drop 6 to form a welding bead on a substrate. By adopting the preparation equipment, the composition of the third phase reinforced powder and the matrix material and the manufacture of related parts can be realized by combining a powder feeding mode of wrapping the reinforced powder by the metal foil and an additive manufacturing technology, and the problem that the flux-cored wire is difficult to prepare particularly from light alloy is avoided.
Further, the welding system comprises a ceramic nozzle 1, a tungsten needle 2, a welding wire conveying wheel 3, a welding wire 4, an electric arc 5, a molten drop 6 and a molten pool 7, wherein the tungsten needle 2 is located inside the ceramic nozzle 1, the electric arc 5 is initiated by the tungsten needle 2, the molten drop 6 is obtained by melting the welding wire 4 through the electric arc 5, the molten drop 6 is dropped on the substrate to form the molten pool 7, and the molten pool 7 is solidified to form a welding bead. The welding system can be used for subsequent arc additive manufacturing of the flux-cored metal foil-like welding wire 14.
Further, the metal foil rolling and pressing system comprises a metal foil roll 8, a powder hopper 9, a metal foil rolling device 10, a metal foil belt 11, a first pressing wheel 12, a conveying wheel 13, a flux-cored metal foil welding wire 14 and a second pressing wheel 15; the metal foil roll 8 is positioned at the initial position of the metal foil rolling system and is responsible for providing raw material metal foil; the powder hopper 9 is positioned above the metal foil coil, and the powder outlet is positioned in the middle of the metal foil strip and is responsible for providing reinforced powder and adjusting the flow rate of the powder according to actual requirements. The metal foil rolling and pressing system can be used for correspondingly rolling and wrapping the reinforcing powder by the metal foil strip 11, so that a corresponding flux-cored metal foil welding wire 14 is formed.
Further, the metal foil tape 11 is a raw material transferred from the metal foil roll 8 and passes through the metal foil roll maker 10; the metal foil coil device 10 and the metal foil coil 8 are positioned on the same straight line and positioned on the output side of the metal foil coil 8, and are used for coiling the metal foil coil 8 with the reinforcing powder; the first pressing wheel 12 is located at the outlet of the metal foil winder 10, and presses the metal foil strips 11, which have been folded up on both sides, into the flux-cored-like metal foil welding wire 14. The two ends of the metal foil strip 11 can be rolled up through the forming system, and then the reinforcing powder can be wrapped conveniently.
Further, the transfer wheel 13 is located on the left side of the first pressing wheel 12; the first pressing wheel 12 can press-mold the preliminarily curled metal foil strip 11 to ensure the effect of wrapping the reinforcing powder.
Further, the second pressing wheel 15 is located at the end of the flux-like metal foil welding wire 14, and is responsible for pressing and compacting the flux-like metal foil welding wire 14 again and feeding the compacted flux-like metal foil welding wire into the arc 5 in the welding system.
Further, the metal foil rolling device 10 is a hollow structure in cross section, and is used for folding both sides of the metal foil strip 11 passing through the hollow structure.
Furthermore, the cross section of the hollow structure is triangular or arc-shaped. The flexibility of the powder coating machine is enhanced by adopting different cross sections, and the effect of coating the enhanced powder is ensured.
Further, the flux-cored metal foil welding wire 14 can be made into a rectangular cross section shape and a circular cross section shape according to actual requirements. The sections with different shapes can be selected according to requirements, and the adaptability of the device is guaranteed.
Example 2:
the method for preparing the arc additive composite material by adopting the arc additive composite material preparation equipment with the powder feeding mode of wrapping the metal foil with the reinforced powder comprises the following steps of:
step1: preparing before welding;
the method comprises the following steps of (1) preprocessing a substrate before welding, removing oil stains and oxide scales on the surface to enable the substrate to meet the condition of surfacing, selecting reinforcing powder according to the requirement, and performing primary processing on the reinforcing powder;
the primary treatment of the reinforced powder refers to that the powder particles are ensured to be uniform and not to agglomerate through ultrasonic oscillation and ball milling series treatment;
step2: selecting welding parameters and metal foil rolling parameters;
the welding parameters are welding current, welding voltage, welding speed and wire feeding speed of welding wires;
the metal foil rolling parameters refer to the transmission speed of the metal foil strip, the flow rate of the enhanced powder, the extrusion force of the pressing wheel and the width of the metal foil similar to the flux-cored wire; the parameters can be flexibly adjusted according to actual needs;
step3: modeling and editing a welding program;
modeling the part by using CAD software, importing the slicing software for slicing and layering to obtain profile data of each section, planning a surfacing path, obtaining programming codes of the movement and wire feeding speed of a welding system, and recording the codes into the welding system;
step4: starting welding and stacking;
passing the metal foil belt 11 below the reinforced powder, and dropping the reinforced powder in the middle of the metal foil belt; the metal foil strip with the enhanced powder in the middle passes through a metal foil rolling device 10, the two sides of the metal foil strip are folded, and the metal foil strip is pressed by a first pressing wheel 12 to form a flux-cored metal foil welding wire 14; the flux-cored metal foil welding wire 14 is conveyed to a second pressing wheel 15 to be pressed for the second time and is fed into the electric arc 5;
a tungsten needle 2 in the welding system is responsible for initiating a high-energy electric arc, melting a welding wire 4 and a similar flux-cored metal foil welding wire 14 to form molten drops, forming a welding bead on a substrate, and stacking layer by layer according to a set program until the welding is finished;
step5: forming the required parts and carrying out post-treatment.
Inspecting the defects of the formed part, selecting a corresponding processing method according to the characteristics of the used material, improving the physical performance of the part, machining the part, controlling the geometric shape and the size of the part and ensuring the mechanical performance of the part.

Claims (8)

1. An electric arc additive composite material preparation device adopting a powder feeding mode of metal foil wrapped reinforced powder is characterized by comprising a welding system and a metal foil rolling system; the metal foil rolling system wraps the reinforcing powder in the metal foil to prepare a flux-cored metal foil-like welding wire (14) and conveys the flux-cored metal foil-like welding wire to a welding system; the welding system initiates a high-energy electric arc (5) to melt a welding wire (4) and a similar flux-cored metal foil welding wire (14) transmitted by the metal foil coiling and pressing system to form a molten drop (6) to form a welding bead on the substrate.
2. The metal foil-wrapped reinforced powder feeding type arc additive composite material preparation equipment according to claim 1, wherein the metal foil-wrapped reinforced powder feeding type arc additive composite material preparation equipment comprises: welding system includes ceramic nozzle (1), tungsten needle (2), welding wire transfer gear (3), welding wire (4), electric arc (5), molten drop (6) and molten bath (7), tungsten needle (2) are located ceramic nozzle (1) inside, and electric arc (5) are initiated by tungsten needle (2), and molten drop (6) are obtained by electric arc (5) melting welding wire (4), and molten drop (6) drip and form molten bath (7) on the base plate, form the welding bead after molten bath (7) solidify.
3. The metal foil-wrapped reinforced powder feeding type arc additive composite material preparation equipment according to claim 1, wherein the metal foil-wrapped reinforced powder feeding type arc additive composite material preparation equipment comprises: the metal foil rolling and pressing system comprises a metal foil roll (8), a powder hopper (9), a metal foil rolling device (10), a metal foil belt (11), a first pressing wheel (12), a conveying wheel (13), a flux-cored metal foil welding wire (14) and a second pressing wheel (15);
the metal foil roll (8) is positioned at the initial position of the metal foil rolling system and is responsible for providing raw material metal foil; the powder hopper (9) is positioned above the metal foil coil, and the powder outlet is positioned in the middle of the metal foil strip and is responsible for providing reinforced powder and adjusting the flow rate of the powder according to actual requirements;
the metal foil tape (11) is a raw material conveyed from a metal foil roll (8) and passes through a metal foil roll maker (10);
the metal foil rolling device (10) and the metal foil roll (8) are positioned on the same straight line and positioned on the output side of the metal foil roll (8) and used for rolling the metal foil roll (8) with the reinforcing powder;
the first pressing wheel (12) is positioned at the outlet of the metal foil winder (10), and presses the metal foil strips (11) with two folded sides into a flux-cored metal foil welding wire (14);
the transmission wheel (13) is positioned at the left side of the first pressing wheel (12);
the second pressing wheel (15) is positioned at the tail end of the similar flux-cored metal foil welding wire (14) and is used for pressing and compacting the similar flux-cored metal foil welding wire (14) again and conveying the similar flux-cored metal foil welding wire into an electric arc (5) in the welding system.
4. The equipment for preparing the arc additive composite material of the powder feeding mode of the metal foil wrapped reinforced powder according to claim 3, characterized in that: the metal foil rolling device (10) is of a hollow structure in cross section and is used for folding two sides of a metal foil belt (11) penetrating through the hollow structure.
5. The metal foil-wrapped reinforced powder feeding type arc additive composite material preparation equipment according to claim 4, wherein the metal foil-wrapped reinforced powder feeding type arc additive composite material preparation equipment comprises: the cross section of the hollow structure is triangular or arc-shaped.
6. The equipment for preparing the arc additive composite material of the powder feeding mode of the metal foil wrapped reinforced powder according to claim 3, characterized in that: the flux-cored metal foil welding wire (14) can be made into a rectangular cross section shape and a circular cross section shape according to actual requirements.
7. The method for preparing the arc additive composite material by adopting the arc additive composite material preparation equipment in the powder feeding mode of the metal foil-wrapped reinforced powder as claimed in any one of claims 1 to 6 is characterized by comprising the following steps of:
step1: preparing before welding;
step2: selecting welding parameters and metal foil rolling parameters;
step3: modeling and editing a welding program;
step4: starting welding and stacking;
step5: forming the required parts and carrying out post-treatment.
8. The method for preparing the arc additive composite material by the arc additive composite material preparation equipment adopting the powder feeding mode of the metal foil wrapped reinforced powder according to claim 7 is characterized by comprising the following steps of:
the specific operation of Step1 is as follows: the method comprises the following steps of (1) preprocessing a substrate before welding, removing oil stains and oxide skin on the surface to enable the substrate to meet the condition of surfacing, selecting reinforced powder according to the requirement, and carrying out primary processing on the reinforced powder;
the primary treatment of the reinforced powder refers to that the powder particles are ensured to be uniform and not to agglomerate through ultrasonic oscillation and ball milling series treatment;
the welding parameters in Step2 refer to welding current, welding voltage, welding speed and wire feeding speed of a welding wire;
the metal foil rolling parameters refer to the transmission speed of the metal foil strip, the flow rate of the enhanced powder, the extrusion force of the pressing wheel and the width of the metal foil similar to the flux-cored wire; the parameters can be flexibly adjusted according to actual needs;
the Step3 specifically comprises the steps of modeling a part by using CAD software, importing slice software for slice layering to obtain profile data of each section, planning a surfacing welding path, obtaining programming codes of the movement and wire feeding speed of a welding system, and recording the codes into the welding system;
the Step4 is specifically operated in such a way that the metal foil strip (11) passes below the reinforced powder, and the reinforced powder falls in the middle of the metal foil strip; the metal foil strip with the enhanced powder in the middle part passes through a metal foil rolling device (10), the two sides of the metal foil strip are folded, and the metal foil strip is pressed by a first pressing wheel (12) to form a flux-cored metal foil welding wire (14); the flux-cored metal foil welding wire (14) is conveyed to a second pressing wheel (15), is pressed for the second time and is fed into the electric arc (5);
a tungsten needle (2) in the welding system is responsible for initiating a high-energy electric arc, melting a welding wire (4) and a similar flux-cored metal foil welding wire (14) to form molten drops, forming a welding bead on a substrate, and stacking layer by layer according to a set program until the welding is finished;
the Step5 specifically comprises the steps of checking defects of the formed part, selecting a corresponding processing method according to the characteristics of the used material, improving the physical performance of the part, machining the part, controlling the geometric shape and size of the part and ensuring the mechanical performance of the part.
CN202211369432.0A 2022-11-03 2022-11-03 Preparation equipment and method for arc additive composite material in powder feeding mode of metal foil wrapped reinforced powder Active CN115889940B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090078689A1 (en) * 2006-03-24 2009-03-26 Gustav Wiegard Maschinenfabrik Gmbh & Co. Kg Method of Welding a Wear Layer onto a Parent Material Using a Plurality of Flux-Cored Wire Electrodes, Metal Powder and Welding Powder
CN108526767A (en) * 2018-06-27 2018-09-14 芜湖鼎恒材料技术有限公司 A kind of construction materials contract former of flux-cored wire
CN109226965A (en) * 2018-09-21 2019-01-18 浙江海洋大学 A kind of lamination increasing material manufacturing device and method of metal foil plate composite material
CN111112794A (en) * 2020-01-14 2020-05-08 三峡大学 Third-phase reinforced metal matrix composite material arc additive manufacturing method and equipment
CN113927212A (en) * 2021-11-12 2022-01-14 南京航空航天大学 Welding wire structure design and powder proportioning method for electric arc additive repair
CN114535859A (en) * 2022-01-11 2022-05-27 西安理工大学 Nickel-steel composite material arc 3D printing welding wire and preparation and additive manufacturing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090078689A1 (en) * 2006-03-24 2009-03-26 Gustav Wiegard Maschinenfabrik Gmbh & Co. Kg Method of Welding a Wear Layer onto a Parent Material Using a Plurality of Flux-Cored Wire Electrodes, Metal Powder and Welding Powder
CN108526767A (en) * 2018-06-27 2018-09-14 芜湖鼎恒材料技术有限公司 A kind of construction materials contract former of flux-cored wire
CN109226965A (en) * 2018-09-21 2019-01-18 浙江海洋大学 A kind of lamination increasing material manufacturing device and method of metal foil plate composite material
CN111112794A (en) * 2020-01-14 2020-05-08 三峡大学 Third-phase reinforced metal matrix composite material arc additive manufacturing method and equipment
CN113927212A (en) * 2021-11-12 2022-01-14 南京航空航天大学 Welding wire structure design and powder proportioning method for electric arc additive repair
CN114535859A (en) * 2022-01-11 2022-05-27 西安理工大学 Nickel-steel composite material arc 3D printing welding wire and preparation and additive manufacturing method

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