CN106825859B - A kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method - Google Patents

A kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method Download PDF

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Publication number
CN106825859B
CN106825859B CN201710029181.4A CN201710029181A CN106825859B CN 106825859 B CN106825859 B CN 106825859B CN 201710029181 A CN201710029181 A CN 201710029181A CN 106825859 B CN106825859 B CN 106825859B
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aluminum alloy
welding
junction component
alloy junction
electric arc
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CN106825859A (en
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何智
王志敏
胡洋
步贤政
张铁军
姚为
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Beijing Hangxing Technology Development Co Ltd
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Beijing Hangxing Technology Development Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/04Welding for other purposes than joining, e.g. built-up welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/235Preliminary treatment

Abstract

A kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method.This method carries out the electric arc increasing material manufacturing of aluminum alloy junction component in such a way that welding machine provides heat source cooperative mechanical arm progress path planning.Electric current bottoming of three layers of the bottom using 20A~50A big compared with forming current or so;Entity is accumulated using forming current in top, and every road Ceng Nei and outer course arcing point are a pair of of angle steel joint, and and so on, final forming obtains multilayer two pass aluminum alloy junction component.Wherein, material is increased by the electric arc that 10mm~25mm wall thickness aluminum alloy junction component can be achieved in the adjustment of parameter, to meet specific size requirements.Electric arc increasing material manufacturing aluminum alloy junction component good mechanical properties proposed by the invention, surface roughness is small, flawless defect, and stock utilization is high, with short production cycle;It solves the problems, such as that big wall thickness aluminum alloy junction component quickly manufactures in the development stage, while solving the problems such as long production period that conventional casting methods need to make mold, also significantly reduce product cost.

Description

A kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method
Technical field
The invention belongs to material increasing fields, and in particular to a kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing side Method.
Background technique
Aluminium alloy has the advantages that low-density, corrosion-resistant, with can effectively mitigate its weight on aerospace flight vehicle, increases Big thrust loading, so being widely used in aerospace etc. requires light-weighted field.Traditional aluminium alloy processing method mainly has Casting and machining etc., although being able to satisfy the requirement such as machining accuracy, there are difficulty of processing greatly, process is tedious, material use The deficiencies of rate is low, high production cost, long production cycle.Sometimes for product progress, design is tested repeatedly in practical development and production Card, product size, structure etc. also need to change at any time, and traditional processing method not only has longer production cycle, cost It is significantly increased.Meanwhile properties of product are directly influenced there are more gross imperfection and component segregation in mo(u)lded piece.It is existing Manufacturing technology be difficult to meet the quick and various development and production demand of novel product.
As the key areas such as aerospace, rail traffic are to the performance of hardware, precision, production cycle and production The requirement of cost is increasingly harsh, becomes research hotspot using increases material manufacturing technology direct forming metal parts.
In material increasing field, there is equipment for the electric arc increases material manufacturing technology of raw material using arc heat as heat source, silk material The advantages that small investment, stock utilization are high, production cost is low, with short production cycle, metallurgical bonding performance is good, excellent combination property, It is very suitable for quick, the inexpensive development and production of the fields such as aerospace small mount, multi items product.
Summary of the invention
Technical problem solved by the present invention is overcome the deficiencies in the prior art, proposes that a kind of aluminum alloy junction component multilayer is double Road electric arc increasing material manufacturing method, using this method can realize in big wall thickness aluminum alloy junction component quick near-net-shape, structural member Surface roughness is small, good mechanical performance, and production cost has been greatly reduced, has shortened the production cycle.
The technical solution of the present invention is as follows: a kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method, which is closed Golden structural member is formed by electric arc increasing material manufacturing system 3D printing;Steps are as follows:
1) welding wire required for selection forming specific structure part, determines running parameter required for forming specific structure part, packet Include wire feed rate, welding current, speed of welding, welding gun offset, single-pass welding width and weld bead height;
2) it will be fixed after the substrate of overpickling polishes flat and uses dehydrated alcohol or acetone wiped clean on the table, Guarantee its level;
3) according to step 1) determine parameter bottoming is carried out on substrate, after the completion of bottoming, use instead forming parameters into The accumulation of row entity part, the every road Ceng Nei of entity part and outer course arcing point are a pair of of angle steel joint, the direction of travel phase of adjacent layer Instead, and so on until reaching the requirement of short transverse size, final forming obtains aluminum alloy junction component.
The 5A06 aluminum alloy plate materials that the substrate is selected with a thickness of 20-50mm.
The welding wire uses diameter for the 5B06 aluminium alloy welding wire of 0.8mm or 1.2mm or 1.6mm;The wire feed rate is 5 ~10m/min;The welding current is 80~140A;The speed of welding is 7~12mm/s;The single-pass welding width 6~ 10mm;1.3~the 1.8mm of weld bead height.
Increase material during use 99.999% high-purity argon to aluminum alloy junction component carry out front protecting, gas flow be 18~ 20L/min。
It is all made of C+P mode in bottoming and entity part banking process, i.e. cold metal transfer+pulse mode, three layers of bottom Using the welding current bottoming of 20~50A bigger than forming current, top is accumulated to obtain using forming parameters by planning path Entity.
The every road Ceng Nei of entity part and outer course arcing point are a pair of of angle steel joint, 2n+1 layers with the 2nd (n+1) layer Arcing point is identical, and adjacent layer welding gun direction of travel is opposite;Wherein n is zero-based integer, and when n is even number, arcing point is One pair of them angle steel joint;When n is odd number, arcing point is another pair angle steel joint.
After finishing every road Ceng Nei, welding gun deviates certain offset and completes the accumulation of outer course again with good between realizing Overlap joint, the width that welding gun offset is chosen for single-pass welding subtract 2~5mm.
The advantages of the present invention over the prior art are that:
Aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method proposed by the invention, equipment investment is few, material is sharp It is high (close to 100%) with rate, it reduces production cost, shorten the production cycle;Its formation of parts is made of full seam organization, fine and close Degree is high, and metallurgical bonding performance is good, and chemical component is uniform, and mechanical property is more than casting and reachable forging is horizontal.
Detailed description of the invention
Fig. 1 is that electric arc of the present invention increases material aluminum alloy junction component sectional view;Wherein 1 (a) is front view, and 1 (b) is side view Figure;
Fig. 2 is that electric arc of the present invention increases material path schematic diagram.
Specific embodiment
Hereafter specific method of the invention is illustrated by example:
Example: 15mm thickness 5B06 aluminium alloy rectangular structural member multilayer two pass electric arc increasing material manufacturing
Specific implementation method are as follows: as shown in Figure 1, it is desirable that the aluminum alloy junction component wall thickness 15mm of manufacture, length and width and high difference For 400mm, 200mm and 400mm, it is considered as multilayer two pass electric arc and increases material forming.The raw material used is ф 1.2mm 5B06 Aluminium alloy welding wire first passes through test and gropes to obtain one group of suitable forming parameters: welding current 120A, wire feed rate 7m/ Min, speed of welding 8mm/s, under this group of technological parameter, single-pass welding width 8mm, height 1.3mm, welding gun offset is 5mm, energy Enough fusion and monolithic molding are good between guarantee road;Substrate through overpickling is polished flat and is wiped with dehydrated alcohol or acetone It is fixed on the table after net, guarantees its level;Suitable position, which is chosen, in substrate carries out bottoming, bottoming parameter: welding current 159A, wire feed rate 9m/min, speed of welding 8mm/s;After the completion of three layers of bottoming, uses forming parameters instead and carry out entity part Accumulation: as shown in Fig. 2, wherein arrow is mechanical arm walking path;1st road Ceng Nei arcing point is point 1, and outer course is point 3, walking side To for counterclockwise;After completing the 1st layer, welding gun raises 1.3mm and carries out the 2nd layer heap product;2nd road Ceng Nei and outer course arcing point and the 1st Outer course is identical in layer, but direction of travel is clockwise;After completing the 2nd layer, welding gun raises 1.3mm and carries out the 3rd layer heap product;3rd layer Interior road arcing point is point 2, and outer course is point 4, and direction of travel is counterclockwise;After completing the 3rd layer, welding gun raises 1.3mm and carries out the 4th layer Accumulation;4th road Ceng Nei is identical as outer course in outer course arcing point and the 3rd layer, but direction of travel is clockwise;Four layers are followed for one Ring, and so on until reaching the requirement of short transverse size, final forming obtains aluminum alloy junction component.

Claims (2)

1. a kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method, the aluminum alloy junction component is by electric arc increasing material manufacturing System 3D printing is formed;It is characterized by the following steps:
1) welding wire required for selection forming specific structure part, determines running parameter required for forming specific structure part, including send Silk speed, welding current, speed of welding, welding gun offset, single-pass welding width and weld bead height;
2) it will fix on the table, guarantee after the substrate of overpickling polishes flat and uses dehydrated alcohol or acetone wiped clean It is horizontal;
3) bottoming is carried out on substrate according to the parameter that step 1) determines, after the completion of bottoming, uses forming parameters instead and carry out in fact Body portion accumulation, the every road Ceng Nei of entity part and outer course arcing point are a pair of of angle steel joint, and the direction of travel of adjacent layer is on the contrary, such as This is reciprocal until reaching the requirement of short transverse size, and final forming obtains aluminum alloy junction component;Every layer of the entity part it is interior Road and outer course arcing point are a pair of of angle steel joint, and 2n+1 layers identical as the arcing point of the 2nd (n+1) layer, adjacent layer welding gun walking side To opposite;Wherein n is zero-based integer, and when n is even number, arcing point is one pair of them angle steel joint;When n is odd number, Arcing point is another pair angle steel joint;
The 5A06 aluminum alloy plate materials that the substrate is selected with a thickness of 20-50mm;
The welding wire uses diameter for the 5B06 aluminium alloy welding wire of 0.8mm or 1.2mm or 1.6mm;The wire feed rate be 5~ 10m/min;The welding current is 80~140A;The speed of welding is 7~12mm/s;The single-pass welding width 6~ 10mm;1.3~the 1.8mm of weld bead height;
It is all made of C+P mode in bottoming and entity part banking process, i.e. cold metal transfer+pulse mode, the use of three layers of bottom The welding current bottoming of 20~50A bigger than forming current, top are accumulated to obtain entity by planning path using forming parameters;
After finishing every road Ceng Nei, welding gun deviates certain offset and completes the accumulation of outer course again with well taking between realizing It connects, the width that welding gun offset is chosen for single-pass welding subtracts 2~5mm.
2. a kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method according to claim 1, it is characterised in that: Increase material uses 99.999% high-purity argon to carry out front protecting to aluminum alloy junction component in the process, and gas flow is 18~20L/min.
CN201710029181.4A 2017-01-16 2017-01-16 A kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method Active CN106825859B (en)

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CN107876938A (en) * 2017-10-16 2018-04-06 北京航星机器制造有限公司 Bridging method between a kind of electric arc increasing material manufacturing road based on mechanical arm swing
CN107944154B (en) * 2017-11-29 2021-03-30 西南交通大学 Automatic calculation method for variables of electric arc wire filling additive manufacturing layered slicing process
CN108098112A (en) * 2017-12-14 2018-06-01 上海工程技术大学 A kind of method of electric arc increasing material manufacturing heterogeneity aluminum alloy composite material
CN108161178A (en) * 2018-01-30 2018-06-15 北京理工大学 A kind of aluminum alloy junction component electric arc increases material forming method
CN108340057A (en) * 2018-03-09 2018-07-31 上海工程技术大学 A kind of aluminum alloy thick wall structure Rapid Shaping Technology of Arc Welding
CN109332860B (en) * 2018-11-23 2021-01-05 大连理工大学 Arc additive manufacturing method of 5083 aluminum alloy/TC 4 titanium alloy structure
CN109530859A (en) * 2018-12-26 2019-03-29 北京航星机器制造有限公司 A kind of GH4099 high temperature alloy structural member electric arc increasing material manufacturing method
CN109530858A (en) * 2018-12-26 2019-03-29 北京航星机器制造有限公司 A method of it improving aluminium alloy electric arc and increases material metallurgy intensity
CN110508901B (en) * 2019-09-16 2021-01-19 西安交通大学 Method for emergency repair of damaged Al-Mg series aluminum alloy component of ship through electric arc additive manufacturing
CN110919135A (en) * 2019-12-03 2020-03-27 哈尔滨电机厂有限责任公司 Preparation method for Babbitt metal composite welding on surface of curved surface bearing bush

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