CN106825859A - 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 PDFInfo
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- CN106825859A CN106825859A CN201710029181.4A CN201710029181A CN106825859A CN 106825859 A CN106825859 A CN 106825859A CN 201710029181 A CN201710029181 A CN 201710029181A CN 106825859 A CN106825859 A CN 106825859A
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- aluminum alloy
- electric arc
- junction component
- alloy junction
- increasing material
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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
-
- 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
Abstract
A kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method.The method is provided using welding machine carries out the electric arc increasing material manufacturing of aluminum alloy junction component by the way of thermal source cooperative mechanical arm carries out path planning.The electric current bottoming of three layers of bottom use 20A~50A big compared with forming current or so；Entity is piled up in top using forming current, and every Ceng Nei roads are a pair of angle steel joints with outer course arcing point, and and so on, final shaping obtains multilayer two pass aluminum alloy junction component.Wherein, the electric arc for being capable of achieving 10mm~25mm wall thickness aluminum alloy junction components by the adjustment of parameter increases material, 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, and flawless defect, stock utilization is high, with short production cycle；The problem of the big quick manufacture of wall thickness aluminum alloy junction component in the development stage is solved, while solving conventional casting methods needs the problems such as making the long production cycle of mould, product cost is also significantly reduced.
Description
Technical field
The invention belongs to material increasing field, and in particular to a kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing side
Method.
Background technology
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 Aero-Space etc. requires light-weighted field.Traditional aluminium alloy processing method mainly has
Casting and machining etc., although can meet the requirement such as machining accuracy, but have that difficulty of processing is big, tedious process, material use
The deficiency such as rate is low, production cost is high, the production cycle is long.Tested sometimes for being designed repeatedly product in actual development and production
Card, product size, structure etc. also need change at any time, and traditional processing method not only has production cycle more long, cost
It is significantly increased.Meanwhile, there is more gross imperfection and component segregation in mo(u)lded piece, directly influence properties of product.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 Aero-Space, track traffic are to the performance of hardware, precision, production cycle and production
The requirement of cost is increasingly harsh, and study hotspot is turned into using increases material manufacturing technology direct forming metal parts.
In material increasing field, with arc heat as thermal source, electric arc increases material manufacturing technology of the silk material as raw material there is equipment
Small investment, stock utilization are high, low production cost, good with short production cycle, metallurgical binding performance, excellent combination property the advantages of,
It is very suitable for quick, the inexpensive development and production of the field such as Aero-Space small lot, multi-assortment production.
The content of the invention
Present invention solves the technical problem that being：Overcome the deficiencies in the prior art, propose that a kind of aluminum alloy junction component multilayer is double
Road electric arc increasing material manufacturing method, the quick near-net-shape of big wall thickness aluminum alloy junction component, structural member in being realized using this method
Surface roughness is small, good mechanical performance, and production cost has been greatly reduced, the production cycle is shortened.
The technical scheme is that：A kind of aluminum alloy junction component multilayer two pass electric arc increasing material manufacturing method, the eka-aluminum is closed
Golden structural member is formed by electric arc increasing material manufacturing system 3D printing；Step is as follows：
1) welding wire required for selection shaping ad hoc structure part, it is determined that running parameter, bag required for shaping ad hoc structure part
Include wire feed rate, welding current, speed of welding, welding gun side-play amount, single-pass welding width and weld bead height；
2) will be polished flat through the substrate of overpickling and after using absolute ethyl alcohol or acetone wiped clean it is fixed on the table,
Ensure its level；
3) according to step 1) determine parameter bottoming is carried out on substrate, after the completion of bottoming, use forming parameters instead and enter
Row entity part is piled up, and entity part is a pair of angle steel joints, the direction of travel phase of adjacent layer with outer course arcing point per Ceng Nei roads
Instead, and so on until reaching the requirement of short transverse size, final shaping obtains aluminum alloy junction component.
The substrate is the 5A06 aluminum alloy plate materials of 20-50mm from thickness.
The welding wire uses the 5B06 aluminium alloy welding wires of a diameter 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 and front protecting is carried out to aluminum alloy junction component using 99.999% high-purity argon during material, gas flow for 18~
20L/min。
C+P patterns, i.e. cold metal transfer+pulse mode, three layers of bottom are used in bottoming and entity part banking process
Using the welding current bottoming of 20~50A bigger than forming current, top is piled up by path planning using forming parameters and obtained
Entity.
The entity part is a pair of angle steel joints per Ceng Nei roads and outer course arcing point, 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 which angle steel joint；When n is odd number, arcing point is another to angle steel joint.
After finishing every Ceng Nei roads, welding gun offset certain side-play amount complete the accumulation of outer course again to realize between it is good
Overlap joint, the width that welding gun side-play amount is chosen for single-pass welding subtracts 2~5mm.
Present invention advantage compared with prior art is：
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 (close to 100%) high with rate, reduce production cost, shorten the production cycle；Its formation of parts is made up of full seam organization, fine and close
Degree is high, and metallurgical binding performance is good, and chemical composition is uniform, and mechanical property exceedes casting and up to forging level.
Brief description of the drawings
Fig. 1 is that electric arc of the present invention increases material aluminum alloy junction component profile；Wherein 1 (a) is front view, and 1 (b) is side-looking
Figure；
Fig. 2 is that electric arc of the present invention increases material path schematic diagram.
Specific embodiment
Specific method of the invention is illustrated by example hereafter：
Example：The multilayer two pass electric arc increasing material manufacturing of 15mm thickness 5B06 aluminium alloys rectangular structural member
Specific implementation method is：As shown in Figure 1, it is desirable to the aluminum alloy junction component wall thickness 15mm of manufacture, length and width and difference high
It is 400mm, 200mm and 400mm, it is considered to which material shaping is increased using multilayer two pass electric arc.The raw material for using are ф 1.2mm 5B06
Aluminium alloy welding wire, first passes through experiment 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 side-play amount is 5mm, energy
Fusion is good with monolithic molding between enough ensureing road；To be polished flat through the substrate of overpickling and wiped with absolute ethyl alcohol or acetone
Fixed after net on the table, it is ensured that its level；Choosing correct position 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, using forming parameters instead carries out entity part
Pile up：As shown in Fig. 2 wherein arrow is mechanical arm walking path；1st Ceng Nei roads 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 of accumulation；2nd Ceng Nei roads 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 of accumulation；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
Pile up；4th Ceng Nei roads are identical with 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 shaping obtains aluminum alloy junction component.
Claims (7)
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 in that step is as follows：
1) welding wire required for selection shaping ad hoc structure part, it is determined that running parameter required for shaping ad hoc structure part, including give
Silk speed, welding current, speed of welding, welding gun side-play amount, single-pass welding width and weld bead height；
2) will be polished flat through the substrate of overpickling and after using absolute ethyl alcohol or acetone wiped clean it is fixed on the table, it is ensured that
Its level；
3) according to step 1) determine parameter bottoming is carried out on substrate, after the completion of bottoming, using forming parameters instead carries out reality
Body portion is piled up, and entity part is a pair of angle steel joints with outer course arcing point per Ceng Nei roads, and the direction of travel of adjacent layer is conversely, such as
This is reciprocal until reaching the requirement of short transverse size, final shaping obtains aluminum alloy junction component.
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：
The substrate is the 5A06 aluminum alloy plate materials of 20-50mm from thickness.
3. 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：
The welding wire uses the 5B06 aluminium alloy welding wires of a diameter 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；6~10mm of the single-pass welding width；Institute
State 1.3~1.8mm of weld bead height.
4. 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：
Front protecting is carried out to aluminum alloy junction component using 99.999% high-purity argon during increasing material, gas flow is 18~20L/min.
5. 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：
Bottoming and entity part banking process use C+P patterns, i.e. cold metal transfer+pulse mode, the use of three layers of bottom liken to
Piled up by path planning using forming parameters and obtain entity in the welding current bottoming of the big 20~50A of shape electric current, top.
6. 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：
The entity part is a pair of angle steel joints per Ceng Nei roads and outer course arcing point, 2n+1 layers with the arcing point phase of the 2nd (n+1) layer
Together, 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 which
Angle steel joint；When n is odd number, arcing point is another to angle steel joint.
7. 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：
After finishing every Ceng Nei roads, welding gun offset certain side-play amount complete the accumulation of outer course again to realize between good overlap joint, weldering
The width that rifle side-play amount is chosen for single-pass welding subtracts 2~5mm.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107944154A (en) * | 2017-11-29 | 2018-04-20 | 西南交通大学 | Electric arc silk filling increasing material manufacturing hierarchy slicing state-variable automatic calculating method |
| 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 |
| CN109332860A (en) * | 2018-11-23 | 2019-02-15 | 大连理工大学 | A kind of electric arc increasing material manufacturing method of 5083 aluminium alloys/TC4 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 |
| CN110508901A (en) * | 2019-09-16 | 2019-11-29 | 西安交通大学 | The method that electric arc increasing material manufacturing lash-up recovering ship is damaged Al-Mg line aluminium alloy component |
| CN110814467A (en) * | 2019-12-03 | 2020-02-21 | 天津工业大学 | Path correction method for eliminating edge collapse of arc additive manufacturing component |
| CN110899905A (en) * | 2019-12-03 | 2020-03-24 | 天津工业大学 | Arc additive manufacturing-based polygonal component sharp-angle path correction method |
| 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 |
| CN112276296A (en) * | 2020-09-09 | 2021-01-29 | 北京航星机器制造有限公司 | Path planning method for improving internal quality of arc additive structural part |
| CN112846445A (en) * | 2020-12-31 | 2021-05-28 | 南京英尼格玛工业自动化技术有限公司 | Metal structure multilayer multi-channel composite electric arc additive manufacturing method and system |
| CN113695709A (en) * | 2021-09-06 | 2021-11-26 | 上海航天精密机械研究所 | Aerospace force-bearing structure arc fuse additive path planning method for designing tail stock |
| CN115555683A (en) * | 2022-08-11 | 2023-01-03 | 南京联空智能增材研究院有限公司 | Electric arc additive manufacturing method for aluminum alloy die |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962547A (en) * | 2012-11-23 | 2013-03-13 | 首都航天机械公司 | Manufacturing method of arc additive of titanium alloy structural part |
| CN106002277A (en) * | 2016-05-25 | 2016-10-12 | 华中科技大学 | Electric arc additive and milling composite machining method and product thereof |
| CN106141373A (en) * | 2016-07-18 | 2016-11-23 | 南京航空航天大学 | The electric arc 3D printing device of aluminum alloy junction component and Method of printing |
-
2017
- 2017-01-16 CN CN201710029181.4A patent/CN106825859B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962547A (en) * | 2012-11-23 | 2013-03-13 | 首都航天机械公司 | Manufacturing method of arc additive of titanium alloy structural part |
| CN106002277A (en) * | 2016-05-25 | 2016-10-12 | 华中科技大学 | Electric arc additive and milling composite machining method and product thereof |
| CN106141373A (en) * | 2016-07-18 | 2016-11-23 | 南京航空航天大学 | The electric arc 3D printing device of aluminum alloy junction component and Method of printing |
Non-Patent Citations (4)
| Title |
|---|
| 夏然飞等: "电弧增材制造与铣削复合加工系统与工艺研究", 《制造业自动化》 * |
| 张瑞: "基于CMT的铝合金电弧增材制造（3D打印）技术及工艺研究", 《CNKI优秀硕士学位论文》 * |
| 柏久阳等: "基板散热作用对电弧堆焊成形中熔宽调控的影响", 《焊接学报》 * |
| 樊建勋: "复合铣削的电弧增材制造路径规划方法与应用研究", 《CNKI优秀硕士学位论文》 * |
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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 |
| CN107944154A (en) * | 2017-11-29 | 2018-04-20 | 西南交通大学 | Electric arc silk filling increasing material manufacturing hierarchy slicing state-variable automatic calculating method |
| 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 |
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| CN109332860A (en) * | 2018-11-23 | 2019-02-15 | 大连理工大学 | A kind of electric arc increasing material manufacturing method of 5083 aluminium alloys/TC4 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 |
| CN109530858B (en) * | 2018-12-26 | 2021-09-07 | 北京航星机器制造有限公司 | Method for improving aluminum alloy electric arc additive metallurgy strength |
| CN110508901A (en) * | 2019-09-16 | 2019-11-29 | 西安交通大学 | The method that electric arc increasing material manufacturing lash-up recovering ship is damaged Al-Mg line aluminium alloy component |
| CN110899905A (en) * | 2019-12-03 | 2020-03-24 | 天津工业大学 | Arc additive manufacturing-based polygonal component sharp-angle path correction method |
| 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 |
| CN110919135B (en) * | 2019-12-03 | 2021-07-13 | 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 |
| CN110814467A (en) * | 2019-12-03 | 2020-02-21 | 天津工业大学 | Path correction method for eliminating edge collapse of arc additive manufacturing component |
| CN112276296A (en) * | 2020-09-09 | 2021-01-29 | 北京航星机器制造有限公司 | Path planning method for improving internal quality of arc additive structural part |
| CN112846445A (en) * | 2020-12-31 | 2021-05-28 | 南京英尼格玛工业自动化技术有限公司 | Metal structure multilayer multi-channel composite electric arc additive manufacturing method and system |
| CN112846445B (en) * | 2020-12-31 | 2022-04-15 | 南京英尼格玛工业自动化技术有限公司 | Metal structure multilayer multi-channel composite electric arc additive manufacturing method and system |
| CN113695709A (en) * | 2021-09-06 | 2021-11-26 | 上海航天精密机械研究所 | Aerospace force-bearing structure arc fuse additive path planning method for designing tail stock |
| CN115555683A (en) * | 2022-08-11 | 2023-01-03 | 南京联空智能增材研究院有限公司 | Electric arc additive manufacturing method for aluminum alloy die |
| CN115555683B (en) * | 2022-08-11 | 2023-10-24 | 南京联空智能增材研究院有限公司 | Arc material-increasing method for aluminum alloy die |
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