CN102079004B - The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method - Google Patents
The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method Download PDFInfo
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- CN102079004B CN102079004B CN201010621973.9A CN201010621973A CN102079004B CN 102079004 B CN102079004 B CN 102079004B CN 201010621973 A CN201010621973 A CN 201010621973A CN 102079004 B CN102079004 B CN 102079004B
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- 238000003466 welding Methods 0.000 title claims abstract description 106
- 238000003032 molecular docking Methods 0.000 title claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007493 shaping process Methods 0.000 title claims abstract description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052786 argon Inorganic materials 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010937 tungsten Substances 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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- Arc Welding In General (AREA)
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Abstract
The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method, the greasy dirt around cylinder docking circumferential weld is cleared up with acetone before welding, internal oxidition film around cylinder docking circumferential weld is removed with stainless steel silk wheel, preheat before weldering, debugging control panel controls welding current in real time, voltage, speed of welding, wire feed rate is mated, adopt the welding of automatic tungsten anode argon arc welding machine, welding ground floor is without welding wire back-welding shape, the second layer adds welding wire and fills, third layer adds welding wire, torch swinging capping molding, the present invention adopts equipment simple, easy to operate, achieve Automation of Welding, welding is stable, speed of welding is fast, production cost is low, filler wire is few, the welding number of plies is few, deform little, postwelding need not correct, appearance forming is attractive in appearance, weldquality is high。
Description
Technical field
The present invention relates to aluminum alloy solder technology field, be specifically related to a kind of aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld and connect method。
Background technology
Aluminium alloy is widely used in space flight and aviation, shipbuilding, traffic due to lightweight, the feature such as specific strength is high, corrosion resistance and good, nonmagnetic, formability good and cryogenic property is good, the industry such as electric power。Current welding aluminum alloy thickness is at girth joint many employings welding by both sides two-sides forming of below 12mm or single face welding and double face shaping back side band liner, and this kind of welding method labor intensity is big, and operation is many, quality control link is many, girth joint edge seriously subsides, and deformation is serious, needs to be corrected after welding。The defects such as production efficiency is low, and cost height appearance of weld unsightly, is easily generated pore, is mingled with, incomplete fusion, lack of penetration。
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld and connect method, equipment is simple, easy to operate, it is achieved that Automation of Welding, welding is stable, speed of welding is fast, production cost is low, and filler wire is few, and the welding number of plies is few, deform little, postwelding need not correct, and appearance forming is attractive in appearance, and weldquality is high。
In order to achieve the above object, the technical solution used in the present invention is:
The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method, comprises the following steps:
The first step, clears up the greasy dirt around cylinder docking circumferential weld with acetone before welding, takes turns with stainless steel silk and removes 50mm internal oxidition film around cylinder docking circumferential weld, cylinder thickness 5～12mm, diameter 150～1500mm,
Second step, preheats before weldering, temperature 100～150 DEG C, and debugging control panel controls welding current, voltage, speed of welding, wire feed rate coupling in real time, and design parameter is as follows:
3rd step, adopts the welding of automatic tungsten anode argon arc welding machine, and welding ground floor is without welding wire back-welding shape, and the second layer adds welding wire and fills, and third layer adds welding wire, torch swinging capping molding, and welding wire adopts ER5356 Φ 1.6mm。
Present invention enhances Automation of Welding degree, throat thickness 5～12mm, only welding two, three layers, welding is stable, and welding heat affected zone is little, and barrel distortion is little, weldquality is excellent, and weld reinforcement is consistent, and width is consistent, wave pitch is consistent, without splashing, welding line joint is few, pore-free, undercut, the defects such as incomplete fusion, lack of penetration, crackle, JB/T4730.2X radiographic inspection can reach more than II level。
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail。
Embodiment 1
The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method, comprises the following steps:
The first step, clears up the greasy dirt around cylinder docking circumferential weld with acetone before welding, takes turns with stainless steel silk and removes 50mm internal oxidition film around cylinder docking circumferential weld, cylinder thickness 8mm, diameter 200mm,
Second step, preheats before weldering, temperature 110 DEG C, and debugging control panel controls welding current, voltage, speed of welding, wire feed rate coupling in real time, and design parameter is as follows:
3rd step, adopts the welding of automatic tungsten anode argon arc welding machine, and welding ground floor is without welding wire back-welding shape, and the second layer adds welding wire and fills, and third layer adds welding wire, torch swinging capping molding, and welding wire adopts ER5356 Φ 1.6mm。
It is consistent that ground floor postwelding back of weld shapes reinforcement, and width is consistent, and weld seam front forms 3mm deep trench, and second layer postwelding weld seam front groove is filled and led up, third layer postwelding fillet in normal shear width 16+1mm, reinforcement 1～1.5mm, wave pitch 2～2.5mm。
Embodiment 2
The first step, clears up the greasy dirt around cylinder docking circumferential weld with acetone before welding, takes turns with stainless steel silk and removes 50mm internal oxidition film around cylinder docking circumferential weld, cylinder thickness 10mm, diameter 800mm,
Second step, preheats before weldering, temperature 130 DEG C, and debugging control panel controls welding current, voltage, speed of welding, wire feed rate coupling in real time, and design parameter is as follows:
3rd step, adopts the welding of automatic tungsten anode argon arc welding machine, and welding ground floor is without welding wire back-welding shape, and the second layer adds welding wire and fills, and third layer adds welding wire, torch swinging capping molding, and welding wire adopts ER5356 Φ 1.6mm。
It is consistent that ground floor postwelding back of weld shapes reinforcement, and width is consistent, and weld seam front forms 5mm deep trench, and second layer postwelding weld seam front groove is filled and led up, third layer postwelding fillet in normal shear width 16+1mm, reinforcement 1～1.5mm, wave pitch 2～2.5mm。
Embodiment 3
The first step, clears up the greasy dirt around cylinder docking circumferential weld with acetone before welding, takes turns with stainless steel silk and removes 50mm internal oxidition film around cylinder docking circumferential weld, cylinder thickness 11mm, diameter 1400mm,
Second step, preheats before weldering, temperature 140 DEG C, and debugging control panel controls welding current, voltage, speed of welding, wire feed rate coupling in real time, and design parameter is as follows:
3rd step, adopts the welding of automatic tungsten anode argon arc welding machine, and welding ground floor is without welding wire back-welding shape, and the second layer adds welding wire and fills, and third layer adds welding wire, torch swinging capping molding, and welding wire adopts ER5356 Φ 1.6mm。
It is consistent that ground floor postwelding back of weld shapes reinforcement, and width is consistent, and weld seam front forms 6mm deep trench, and second layer postwelding weld seam front groove is filled and led up, third layer postwelding fillet in normal shear width 20+1mm, reinforcement 1～1.5mm, wave pitch 2～2.5mm。
Claims (1)
1. the aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method, it is characterised in that: comprise the following steps:
The first step, clears up the greasy dirt around cylinder docking circumferential weld with acetone before welding, takes turns with stainless steel silk and removes 50mm internal oxidition film around cylinder docking circumferential weld, cylinder thickness 5～12mm, diameter 150～1500mm,
Second step, preheats before weldering, temperature 100～150 DEG C, and debugging control panel controls welding current, voltage, speed of welding, wire feed rate coupling in real time, and design parameter is as follows:
Wherein three layers welding method is GTAW mode, and the parameter of ground floor welding is: electric current is 280-300A, voltage 9.5-10.2V, speed of welding 360-480mm/min, preheats temperature 100-150 DEG C, and protection gas is 18-22L/min；
The parameter of second layer welding is: electric current is 300-320A, voltage 9.8-10.5V, speed of welding 380-520mm/min, wire feed rate 400～560mm/min, and protection gas is 20～25L/min；
The parameter of third layer welding is: electric current is 300～320A, voltage 9.8-10.5V, speed of welding 380-520mm/min; wire feed rate 320～480mm/min, protection gas is 20～25L/min, and swinging the pendulum in parameter wide is 0.3; slew rate 0.28, a left side stops 0.30, and the right side stops 0.30；
3rd step, adopts the welding of automatic tungsten anode argon arc welding machine, and welding ground floor is without welding wire back-welding shape, and the second layer adds welding wire and fills, and third layer adds welding wire, torch swinging capping molding, and welding wire adopts ER5356 Φ 1.6mm。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010621973.9A CN102079004B (en) | 2010-12-31 | 2010-12-31 | The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method |
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| CN201010621973.9A CN102079004B (en) | 2010-12-31 | 2010-12-31 | The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method |
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| CN102079004A CN102079004A (en) | 2011-06-01 |
| CN102079004B true CN102079004B (en) | 2016-06-22 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350576A (en) * | 2011-09-22 | 2012-02-15 | 中国航天科工集团第二研究院二一〇所 | Method for controlling stress relaxation of aluminum alloy welded structure |
| CN103111731B (en) * | 2013-01-23 | 2015-01-28 | 北京赛德高科铁道电气科技有限责任公司 | Welding method for longitudinal butt joint of thin-wall aluminum alloy non-profile long pipes |
| CN104722895B (en) * | 2015-02-06 | 2016-08-24 | 中国运载火箭技术研究院 | A kind of TIG weld method being adapted to middle thick aluminium alloy |
| CN106001863B (en) * | 2016-06-23 | 2018-08-21 | 首都航天机械公司 | Improve the hot-working method of heat-treatable strengthened aluminum alloy joint made by flame welding elongation percentage |
| CN106583889B (en) * | 2016-12-07 | 2018-12-04 | 淮海工学院 | Carry the aluminium alloy plate welding equipment of the automation of acetone cleaning device |
| CN107695557A (en) * | 2017-11-21 | 2018-02-16 | 辽宁忠旺特种车辆制造有限公司 | Aluminum alloy tank body end socket and stack shell welding procedure |
| CN108296610B (en) * | 2017-12-08 | 2020-11-27 | 四川航天长征装备制造有限公司 | TIG welding method for heat treatment strengthening of aluminum alloy |
| CN110328436A (en) * | 2019-07-10 | 2019-10-15 | 湖北三江航天万峰科技发展有限公司 | The long vertical masonry joint hand tungsten argon arc welding technique of the air-tightness of aluminium alloy firing box |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008018436A (en) * | 2006-07-11 | 2008-01-31 | Yorozu Corp | Welding method and welded product |
| CN101301699A (en) * | 2007-11-23 | 2008-11-12 | 鞍钢建设集团有限公司 | Large caliber aluminium alloy pipeline non-pad tungsten electrode argon arc single face welding and double face shaping method |
| WO2010003595A1 (en) * | 2008-07-07 | 2010-01-14 | Alcan Technology & Management | A fusion welding process to join aluminium and titanium |
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- 2010-12-31 CN CN201010621973.9A patent/CN102079004B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008018436A (en) * | 2006-07-11 | 2008-01-31 | Yorozu Corp | Welding method and welded product |
| CN101301699A (en) * | 2007-11-23 | 2008-11-12 | 鞍钢建设集团有限公司 | Large caliber aluminium alloy pipeline non-pad tungsten electrode argon arc single face welding and double face shaping method |
| WO2010003595A1 (en) * | 2008-07-07 | 2010-01-14 | Alcan Technology & Management | A fusion welding process to join aluminium and titanium |
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