CN109570711A - Aluminium silicon magnesium material aluminium alloy crackle welding method - Google Patents
Aluminium silicon magnesium material aluminium alloy crackle welding method Download PDFInfo
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- CN109570711A CN109570711A CN201811545958.3A CN201811545958A CN109570711A CN 109570711 A CN109570711 A CN 109570711A CN 201811545958 A CN201811545958 A CN 201811545958A CN 109570711 A CN109570711 A CN 109570711A
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- welding
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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
- B23K9/16—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
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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
- B23K9/235—Preliminary treatment
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- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to a kind of aluminium silicon magnesium material aluminium alloy crackle welding method, solve the problems, such as that seminess can occur during traditional argon arc welding welding.Cold crack using diameter 2.6-4mm the equal matched welding wire of materials, welding wire requires the hydrogen that disappears, cleaning groove keeps metallic luster before weldering, welding wire and base material heat 120 DEG C -150 DEG C, it is protected using 99.99% high-purity argon gas, control rifle position filler wire, welding condition are as follows: weldingvoltage 10-13V, welding current is 160-260A according to the control of workpiece size, speed of welding is 16-22mm/min, argon flow is 10-15L/min, force down tungsten electrode, 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, cerium-tungsten electrode, the dry deep nozzle 2mm that exceeds of tungsten electrode is advisable.It if it is fire check, anneals to workpiece, 300-350 DEG C of temperature, keeps the temperature 4-6 hours, come out and cool down, ibid treatment process.The present invention is realized the cracks repair welding excavated at casting defect with casting same material welding wire by addition and guarantees zero defect.
Description
Technical field
The present invention relates to a kind of aluminium silicon magnesium material aluminium alloy crackle welding methods.
Background technique
Aluminum-silicon-magnesium alloy is a kind of traditional high tenacity casting aluminium alloy, has extraordinary intensity, plasticity, tough
Property, therefore it is very widely used in aerospace field.But since the alloy belongs to AL-Si-Mg system cast aluminium alloy gold, itself is special
Property is affected by environment.For complicated casting, digging is readily formed crackle when welding.Particularly with aerospace applications
Aluminum alloy piping welding requirement is very strict, almost requires welding defect.The crackle of such part is generally divided into cold crack and hot tearing
Line carries out repair welding frequently with argon tungsten-arc welding.Currently, imperfect process is to crackle, (especially fire check is mended
Weldering).
Summary of the invention
It is aluminium silicon magnesium material aluminium alloy casting flaw repair welding technical deficiency for existing one, the present invention proposes one kind
The stable crackle welding method of strong applicability, performance.
The present invention is realized by the following technical solutions:
A kind of aluminium silicon magnesium material aluminium alloy crackle welding method, steps are as follows:
1) will be clean with acetone and stainless steel brush cleaning at the repair welding excavated at welding wire and casting defect before weldering, make to be welded
Face keeps metallic luster；
2) using the equal matched welding wire of materials of diameter 2.6-4mm, welding wire disappears hydrogen, welding wire and 120 DEG C of base material heating-cold crack
150℃；It is protected using 99.99% high-purity argon gas, then controls rifle position filler wire, welding condition are as follows: weldingvoltage is
10-13V, welding current are 160-260A, welding according to the control of workpiece size
Speed is 16-22mm/min, argon flow 10-15L/min, forces down tungsten electrode, and welding wire and casting are kept for 60 ° -70 °
Tilt angle, welding wire, which is sent, to be filled out position and is maintained at argon gas protection zone, and the tungsten electrode refers to that lanthanum-tungsten, cerium-tungsten electrode, tungsten electrode are dry deep super
Delivery nozzle 2-5mm；
To fire check, workpiece is annealed, and 300-350 DEG C of annealing temperature, is kept the temperature 4-6 hours, is come out and cooled down, use diameter
The equal matched welding wire of materials of 2.6-4mm, welding wire disappear hydrogen, clean groove holding metallic luster with stainless steel brush and acetone before welding,
Welding wire and base material heat 120 DEG C -150 DEG C；It is protected using 99.99% high-purity argon gas, then controls rifle position filler wire, Welder
Skill parameter are as follows: weldingvoltage 10-13V, welding current are 160-260A, speed of welding 16- according to the control of workpiece size
22mm/min, argon flow 10-15L/min force down tungsten electrode, and welding wire and casting keep 60 ° of -70 ° of tilt angles, and welding wire, which is sent, to be filled out
Position is maintained at argon gas protection zone, and the tungsten electrode refers to that lanthanum-tungsten, cerium-tungsten electrode, tungsten electrode are dry deep beyond nozzle 2-5mm.
The present invention uses argon tungsten-arc welding, and will be excavated at casting defect by addition and the realization of casting same material welding wire
Cracks repair welding simultaneously guarantees zero defect.
Specific embodiment
The present invention is a kind of welding method for the miscellaneous multiple aluminium silicon magnesium material aluminium alloy castings crackle of structure, especially for
The aluminium alloy of aerospace applications, welding requirements is very strict, almost requires a kind of technique side in the case where welding defect
Method.Steps are as follows:
1) will be clean with acetone and stainless steel brush cleaning at the repair welding excavated at welding wire and casting defect before weldering, make to be welded
Face keeps metallic luster；
2) using the equal matched welding wire of materials of diameter 2.6-4mm, welding wire disappears hydrogen, welding wire and 120 DEG C of base material heating-cold crack
It 150 DEG C, is protected using 99.99% high-purity argon gas, then controls rifle position filler wire, welding condition are as follows: weldingvoltage is
10-13V, welding current are 160-260A, speed of welding 16-22mm/min, argon flow 10- according to the control of workpiece size
15L/min, forces down tungsten electrode, and welding wire and casting keep 60 ° of -70 ° of tilt angles, and welding wire, which is sent, to be filled out position and be maintained at argon gas protection zone,
The tungsten electrode refers to that lanthanum-tungsten, cerium-tungsten electrode, tungsten electrode are dry deep beyond nozzle 2-5mm；
It anneals for fire check workpiece, 300-350 DEG C of annealing temperature, keeps the temperature 4-6 hours, come out and cool down, use diameter
The equal matched welding wire of materials of 2.6-4mm, welding wire disappear hydrogen, clean groove holding metallic luster with stainless steel brush and acetone before welding,
Welding wire and base material heat 120 DEG C -150 DEG C, are protected using 99.99% high-purity argon gas, then control rifle position filler wire, Welder
Skill parameter are as follows: weldingvoltage 10-13V, welding current are 160-260A, speed of welding 16- according to the control of workpiece size
22mm/min, argon flow 10-15L/min force down tungsten electrode, and welding wire and casting keep 60 ° of -70 ° of tilt angles, and welding wire, which is sent, to be filled out
Position is maintained at argon gas protection zone, and the tungsten electrode refers to that lanthanum-tungsten, cerium-tungsten electrode, tungsten electrode are dry deep beyond nozzle 2-5mm.
Embodiment 1
Composition of alloy is two pieces of sand casting test plate (panel) of the equal matched alsimay of materials, thick having a size of 200 × 125mm
8mm is spent, test plate (panel) docking is placed, and is made a call to 45 ° of grooves, is cleaned wlding, that is, welding wire with sand paper before weldering, the hole excavated at casting defect is used
Metal slice is cleaned out, and surface to be welded is made to keep metallic luster.Using the welding wire of the same material of diameter 2.6-4mm, gold is kept before welding
Belong to gloss.It is protected using 99.99% high-purity argon gas.Welding condition are as follows: weldingvoltage 13V, welding current 180A, weldering
Connecing speed is 20mm/min, argon flow 15L/min, forces down tungsten electrode, and welding wire and casting are kept for 70 °, and welding wire, which is sent, to be filled out position and want
It is maintained at argon gas protection zone, test plate (panel) weld seam beauty is welded in gained after completing above step, lacks by x-ray inspection without any
It falls into, metallography microscope sem observation does not have the defects of crackle, stomata, and the melting area of welding seam is good, and crystal grain is tiny.
Embodiment 2
The workpiece that two pieces generates fire check is chosen, is annealed before welding, 320 DEG C of annealing temperature, 4 hours is kept the temperature, comes out of the stove
It is cooling, it then repeats the above steps, by x-ray inspection without any defect, metallography microscope sem observation does not have crackle, stomata etc. to lack
It falls into, the melting area of welding seam is good, and crystal grain is tiny.
Claims (1)
1. a kind of aluminium silicon magnesium material aluminium alloy crackle welding method, it is characterized in that: the following steps are included:
1) cracks excavated at welding wire and casting defect are cleaned out before weldering, surface to be welded is made to keep metallic luster；
2) using the equal matched welding wire of materials of diameter 2.6-4mm, welding wire disappears hydrogen cold crack, welding wire and 120 DEG C -150 of base material heating
DEG C, it is protected using 99.99% high-purity argon gas, then controls rifle position filler wire, welding condition are as follows: weldingvoltage 10-
13V, welding current are 160-260A, speed of welding 16-22mm/min, argon flow 10- according to the control of workpiece size
15L/min, forces down tungsten electrode, and welding wire and casting keep 60 ° of -70 ° of tilt angles, and welding wire, which is sent, to be filled out position and be maintained at argon gas protection zone,
The tungsten electrode refers to that lanthanum-tungsten, cerium-tungsten electrode, tungsten electrode are dry deep beyond nozzle 2-5mm；
To fire check, workpiece is annealed, and 300-350 DEG C of annealing temperature, is kept the temperature 4-6 hours, is come out and cooled down, with diameter 2.6-
The equal matched welding wire of materials of 4mm, welding wire disappear hydrogen, and welding wire and base material heat 120 DEG C -150 DEG C；It is protected using 99.99% high-purity argon gas
Then shield controls rifle position filler wire, welding condition are as follows: weldingvoltage 10-13V, welding current is according to workpiece size
Control is 160-260A, and speed of welding 16-22mm/min, argon flow 10-15L/min force down tungsten electrode, welding wire and casting
60 ° of -70 ° of tilt angles are kept, welding wire, which is sent, to be filled out position and is maintained at argon gas protection zone, and the tungsten electrode refers to lanthanum-tungsten, cerium-tungsten electrode,
Tungsten electrode is dry deep beyond nozzle 2-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545958.3A CN109570711A (en) | 2018-12-18 | 2018-12-18 | Aluminium silicon magnesium material aluminium alloy crackle welding method |
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| CN201811545958.3A CN109570711A (en) | 2018-12-18 | 2018-12-18 | Aluminium silicon magnesium material aluminium alloy crackle welding method |
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| CN109570711A true CN109570711A (en) | 2019-04-05 |
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| CN201811545958.3A Pending CN109570711A (en) | 2018-12-18 | 2018-12-18 | Aluminium silicon magnesium material aluminium alloy crackle welding method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394532A (en) * | 2019-06-19 | 2019-11-01 | 内蒙古一机集团林峰特种铸造有限公司 | 205A aluminium copper weld crack defect control method |
| CN113478169A (en) * | 2021-08-11 | 2021-10-08 | 攀钢集团工程技术有限公司 | Welding repair method for heat-treatable strengthened aluminum alloy cracks |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216937A (en) * | 2016-08-16 | 2016-12-14 | 贵州安吉航空精密铸造有限责任公司 | A kind of restorative procedure of ZL114A aluminium alloy castings internal metallurgical defect |
| CN106392460A (en) * | 2016-11-04 | 2017-02-15 | 上海航天精密机械研究所 | Defect repairing method for magnesium/aluminum alloy casting |
| JP6137161B2 (en) * | 2014-12-22 | 2017-05-31 | マツダ株式会社 | Repair method for aluminum alloy castings |
| 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 |
-
2018
- 2018-12-18 CN CN201811545958.3A patent/CN109570711A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6137161B2 (en) * | 2014-12-22 | 2017-05-31 | マツダ株式会社 | Repair method for aluminum alloy castings |
| CN106216937A (en) * | 2016-08-16 | 2016-12-14 | 贵州安吉航空精密铸造有限责任公司 | A kind of restorative procedure of ZL114A aluminium alloy castings internal metallurgical defect |
| CN106392460A (en) * | 2016-11-04 | 2017-02-15 | 上海航天精密机械研究所 | Defect repairing method for magnesium/aluminum alloy casting |
| 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 |
Non-Patent Citations (1)
| Title |
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| 李德成等: "大型铝合金铸件焊接修补技术研究", 《铸造》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394532A (en) * | 2019-06-19 | 2019-11-01 | 内蒙古一机集团林峰特种铸造有限公司 | 205A aluminium copper weld crack defect control method |
| CN113478169A (en) * | 2021-08-11 | 2021-10-08 | 攀钢集团工程技术有限公司 | Welding repair method for heat-treatable strengthened aluminum alloy cracks |
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Application publication date: 20190405 |