CN110394532A - 205A aluminium copper weld crack defect control method - Google Patents
205A aluminium copper weld crack defect control method Download PDFInfo
- Publication number
- CN110394532A CN110394532A CN201910530415.2A CN201910530415A CN110394532A CN 110394532 A CN110394532 A CN 110394532A CN 201910530415 A CN201910530415 A CN 201910530415A CN 110394532 A CN110394532 A CN 110394532A
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- CN
- China
- Prior art keywords
- welding
- argon gas
- welding wire
- wire
- tungsten electrode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
-
- 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
Abstract
The present invention relates to a kind of 205A aluminium copper materials to weld flawless zero defect method, and due to material, this material can generate cold crack, fire check, delayed crack and crater crack in the welding process.The present invention solves the problems, such as current welding method weld crack.Steps are as follows: 1) cleaning out welding wire and workpiece before weldering；2) using matched welding wires of materials such as diameter 2.6-4mm, 3) it is protected using 99.99% high-purity argon gas, then rifle position filler wire is controlled, welding wire filling position is maintained in argon gas protection zone, the dry deep and nozzle of tungsten electrode keeps a horizontal plane, welding condition are as follows: weldingvoltage 10-13V, welding current 200-260A, speed of welding is 18-22mm/min, argon flow is 8-15L/min, welding wire and casting keep 60 ° of -70 ° of tilt angles, welding wire, which is sent, to be filled out position and is maintained at argon gas protection zone, the tungsten electrode refers to lanthanum-tungsten electrode, diameter is 3.6-4.2mm, tip polishing fillet.The present invention uses argon tungsten-arc welding, guarantees that the flawless zero defect of welding controls by the adjustment to welding procedure.
Description
Technical field
The present invention relates to a kind of 205 aluminium copper weld crack defect control methods.
Background technique
205A aluminium copper is a kind of novel high strength cast aluminum alloys, has extraordinary intensity, plasticity.In recent years
Start in aerospace field application.But since the alloy belongs to AL-Cu system cast aluminium alloy gold, self character is affected by environment,
Segregation, crackle and loose are easily generated in casting process, are easily created weld crack in repair welding of casting.Due to aviation
The aluminum alloy piping welding requirement of AEROSPACE APPLICATION is very strict, almost requires welding defect, welding method not can be effectively controlled at present
The generation of weld crack.
Summary of the invention
The present invention is directed to the deficiency of existing 205A aluminium copper welding procedure, proposes that a kind of strong applicability, performance are stablized
Prevent weld crack defect control method.
The present invention is realized by the following technical solutions:
A kind of 205A weld crack defect control method, steps are as follows:
1) welding wire and workpiece place to be welded are cleaned out before weldering, surface to be welded is made to keep metallic luster；
2) using matched welding wires of materials such as diameter 2.6-4mm；
3) it is protected using argon gas, then controls rifle position filler wire, welding wire filling position is maintained in argon gas protection zone, tungsten
Extremely dry depth and nozzle keep a horizontal plane, welding condition are as follows: weldingvoltage 10-13V, welding current 200-260A,
Speed of welding is 18-22mm/min, argon flow 8-15L/min, and welding wire and casting keep 60 ° of -70 ° of tilt angles, welding wire
It send and fills out position and be maintained at argon gas protection zone.
The tungsten electrode refers to lanthanum-tungsten electrode, diameter 3.6-4.2mm, tip polishing fillet.
The argon gas is 99.99% high-purity argon gas.
The present invention uses argon tungsten-arc welding, guarantees welding flawless powder injection molding by the adjustment to welding procedure.
Specific embodiment
Embodiment 1
The groove for about 6mm depth of polishing on one piece of thickness 10mm, the 205A alloy plate of length 300mm width 200mm,
Then 90 degree of double V-grooves are polished, it is before weldering that welding wire and workpiece place's acetone to be welded and stainless steel brush cleaning is clean, make to be welded
Face keeps metallic luster, and using 2.6mm same material welding wire, argon gas uses 99.99% high-purity argon, using argon arc welding welding method,
Electric current 200A, voltage 10V, speed of welding 20mm/min, argon flow 12L/min, welding wire and casting keep 60 ° of inclinations angle
Degree, welding wire send to fill out position and be maintained at argon gas protection zone and be welded, and welding is finished plate in turn, polish over there with position
6mm groove out polish 90 degree of grooves, cleans out and then is welded as previous step, postwelding has no by flaw detection
Crackle and other defects.
Embodiment 2
The groove for about 7mm depth of polishing on one piece of thickness 12mm, the 205A alloy plate of length 300mm width 200mm,
Then 90 degree of double V-grooves are polished, it is before weldering that welding wire and workpiece place's acetone to be welded and stainless steel brush cleaning is clean, make to be welded
Face keeps metallic luster, and using 3.2mm same material welding wire, argon gas uses 99.99% high-purity argon, using argon arc welding welding method,
Electric current 220A, voltage 12V, speed of welding 18mm/min, argon flow 15L/min, welding wire and casting keep 70 ° of inclinations angle
Degree, welding wire send to fill out position and be maintained at argon gas protection zone and be welded, and welding is finished plate in turn, polish over there with position
7mm groove out polish 90 degree of grooves, cleans out and then is welded as previous step, postwelding has no by flaw detection
Crackle and other defects.
Claims (3)
1. a kind of 205A aluminium copper weld crack defect control method, it is characterized in that: steps are as follows:
1) welding wire and workpiece place to be welded are cleaned out before weldering, surface to be welded is made to keep metallic luster；
2) using matched welding wires of materials such as diameter 2.6-4mm；
3) it is protected using argon gas, then controls rifle position filler wire, welding wire filling position is maintained in argon gas protection zone, and tungsten electrode is dry
It is deep to keep a horizontal plane, welding condition with nozzle are as follows: weldingvoltage 10-13V, welding current 200-260A, welding
Speed 18-22mm/min, argon flow 8-15L/min, welding wire and casting keep 60 ° of -70 ° of tilt angles, and welding wire, which is sent, fills out position
It sets and is maintained at argon gas protection zone.
2. a kind of 205A aluminium copper crack defect control method according to claim 1, it is characterized in that: the tungsten electrode is
Refer to that lanthanum-tungsten electrode, diameter are 3.6-4.2mm, tip polishing fillet.
3. a kind of 205A aluminium copper crack defect control method according to claim 1 or 2, it is characterized in that: the argon
Gas is 99.99% high-purity argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530415.2A CN110394532A (en) | 2019-06-19 | 2019-06-19 | 205A aluminium copper weld crack defect control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530415.2A CN110394532A (en) | 2019-06-19 | 2019-06-19 | 205A aluminium copper weld crack defect control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110394532A true CN110394532A (en) | 2019-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910530415.2A Pending CN110394532A (en) | 2019-06-19 | 2019-06-19 | 205A aluminium copper weld crack defect control method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284330A (en) * | 2008-05-28 | 2008-10-15 | 山东大学 | Molybdenum copper and stainless steel argon tungsten argon arc welding process |
| CN103143803A (en) * | 2013-03-15 | 2013-06-12 | 哈尔滨工业大学 | Arc welding-brazing method for pre-coating titanium alloy and aluminum alloy |
| CN108381010A (en) * | 2018-02-05 | 2018-08-10 | 内蒙古机集团林峰特种铸造有限公司 | Casting Al-Cu alloy ZL201A argon tungsten-arc welding repair methods |
| CN109570706A (en) * | 2018-12-18 | 2019-04-05 | 内蒙古机集团林峰特种铸造有限公司 | Alsimay weld blowhole defect control method |
| CN109570711A (en) * | 2018-12-18 | 2019-04-05 | 内蒙古机集团林峰特种铸造有限公司 | Aluminium silicon magnesium material aluminium alloy crackle welding method |
-
2019
- 2019-06-19 CN CN201910530415.2A patent/CN110394532A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284330A (en) * | 2008-05-28 | 2008-10-15 | 山东大学 | Molybdenum copper and stainless steel argon tungsten argon arc welding process |
| CN103143803A (en) * | 2013-03-15 | 2013-06-12 | 哈尔滨工业大学 | Arc welding-brazing method for pre-coating titanium alloy and aluminum alloy |
| CN108381010A (en) * | 2018-02-05 | 2018-08-10 | 内蒙古机集团林峰特种铸造有限公司 | Casting Al-Cu alloy ZL201A argon tungsten-arc welding repair methods |
| CN109570706A (en) * | 2018-12-18 | 2019-04-05 | 内蒙古机集团林峰特种铸造有限公司 | Alsimay weld blowhole defect control method |
| CN109570711A (en) * | 2018-12-18 | 2019-04-05 | 内蒙古机集团林峰特种铸造有限公司 | Aluminium silicon magnesium material aluminium alloy crackle welding method |
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Application publication date: 20191101 |