CN102513688A - Keyhole repairing welding method for friction stir welding of thick plate aluminum alloy - Google Patents
Keyhole repairing welding method for friction stir welding of thick plate aluminum alloy Download PDFInfo
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- CN102513688A CN102513688A CN2011103738911A CN201110373891A CN102513688A CN 102513688 A CN102513688 A CN 102513688A CN 2011103738911 A CN2011103738911 A CN 2011103738911A CN 201110373891 A CN201110373891 A CN 201110373891A CN 102513688 A CN102513688 A CN 102513688A
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- keyhole
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- aluminum alloy
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- stir welding
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Abstract
The invention discloses a keyhole repairing welding method for friction stir welding of a thick plate aluminum alloy. The method is characterized by comprising the following steps of: filling a filling plug which is made of the same material as a mother plate into a keyhole position, wherein the shape and size of the filling plug are matched with those of the keyhole; and after filling, performing secondary repairing welding with a friction stir welding process. Due to the adoption of the method disclosed by the invention, the problem of keyholes formed on the thick plate aluminum alloy in a friction stir welding process is solved by using the conventional conditions, the product rejection rate can be lowered greatly, and the tendency of cracks generated by melting repairing adopted for an aluminum alloy which can be thermally treated and strengthened can be eliminated effectively.
Description
Technical field
The present invention relates to a kind of thick aluminum alloy plate friction stir welding keyhole method for repairing and mending.
Background technology
In the two-sided friction stir welding welding process of thick aluminum alloy plate, often stay keyhole at the workpiece position while welding behind the involuntary stoppage, after finishing, the product welding needs to eliminate keyhole.Present method is to preset end tab before the aluminum alloy section agitating friction welding, puts the keyhole problem though solved the receipts welding position to a certain extent, presets that unexpected the parking stays the keyhole problem in the complicated and unresolved welding process of the method for end tab.Therefore, seek a kind of new be used for aluminum alloy stirring friction welding keyhole method for repairing and mending to reduce product rejection rate with enhance productivity most important.
Summary of the invention
The purpose of this invention is to provide a kind of thick aluminum alloy plate friction stir welding keyhole repairing welding method that is used for; Solve thick aluminum alloy plate and adopted the keyhole problem that produces in the friction stir welding welding process; Can reduce product rejection rate greatly on the one hand, can effectively solve heat-treatable strengthened aluminium alloy melting welding on the other hand and block up the tendency of welding and cracking.
For realizing above-mentioned purpose; The present invention provides a kind of thick aluminum alloy plate friction stir welding keyhole repairing welding method; It is characterized in that: dose in the keyhole position with the filling of mother metal homogeneity and block up, its shape is complementary with size and keyhole, selects for use friction stir welding technology to carry out the secondary repairing after cramming again and welds.
Friction stir welding technology: rotating speed 1200-600 commentaries on classics/min; Weld fast 1000-200mm/min.
Through method of the present invention; Utilize existing condition to solve thick aluminum alloy plate and adopt the keyhole problem that produces in the friction stir welding welding process; On the one hand can reduce product rejection rate greatly, can effectively solve heat-treatable strengthened aluminium alloy on the other hand and adopt melting to repair and the tendency that cracks.
Description of drawings
Fig. 1 is that the present invention welds the keyhole sketch map;
Fig. 2 is that aluminium alloy is filled bridging structure sketch map;
Fig. 3 is a sketch map after the repair by welding.
The specific embodiment
Embodiment 1
With reference to Fig. 1, Fig. 2, Fig. 3, keyhole 2 appears in 10mm slab parts 1 welding process and after, dose with the filling of mother metal homogeneity stifledly 4 in the keyhole position, its shape is complementary with size and keyhole, selects rotating speed 1200 commentaries on classics/min after cramming again for use; The friction stir welding soldering tip 5 that welds fast 600mm/min carries out secondary and repairs welding, the 3rd, weld seam.Through pull test analysis, tensile strength 185MPa; It is qualified that the Metallographic Analysis differential is organized.
Embodiment 2
25mm slab parts, friction stir welding technology: rotating speed 900 commentaries on classics/min; Weld fast 400mm/min.Through pull test analysis, tensile strength 175MPa; It is qualified that the Metallographic Analysis differential is organized.
Embodiment 3
35mm slab parts, friction stir welding technology: rotating speed 720 commentaries on classics/min; Weld fast 180mm/min.Through pull test analysis, tensile strength 170MPa; It is qualified that the Metallographic Analysis differential is organized.
Claims (2)
1. thick aluminum alloy plate friction stir welding keyhole repairing welding method is characterized in that: dose with the filling of mother metal homogeneity stifledly in the keyhole position, its shape is complementary with size and keyhole, selects for use friction stir welding technology to carry out secondary after cramming again and repairs welding.
2. thick aluminum alloy plate friction stir welding keyhole repairing welding method according to claim 1 is characterized in that friction stir welding technology: rotating speed 1200-600 commentaries on classics/min; Weld fast 1000-200mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103738911A CN102513688A (en) | 2011-11-22 | 2011-11-22 | Keyhole repairing welding method for friction stir welding of thick plate aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103738911A CN102513688A (en) | 2011-11-22 | 2011-11-22 | Keyhole repairing welding method for friction stir welding of thick plate aluminum alloy |
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| CN102513688A true CN102513688A (en) | 2012-06-27 |
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| CN2011103738911A Pending CN102513688A (en) | 2011-11-22 | 2011-11-22 | Keyhole repairing welding method for friction stir welding of thick plate aluminum alloy |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880826A (en) * | 2016-04-11 | 2016-08-24 | 江西理工大学 | Thick-plate FSW (friction stir welding) method capable of avoiding bottom defects and improving joint performance |
| CN106238902A (en) * | 2016-08-25 | 2016-12-21 | 上海航天设备制造总厂 | A kind of friction stir welding keyhole complementing method |
| CN106271037A (en) * | 2016-08-25 | 2017-01-04 | 上海航天设备制造总厂 | A kind of stirring friction welding seam local incomplete penetration defect removing method |
| CN106624342A (en) * | 2017-01-23 | 2017-05-10 | 沈阳航空航天大学 | Method for repairing metal component volumetric defect through stirring friction welding |
| CN107552944A (en) * | 2017-09-30 | 2018-01-09 | 清华大学 | A kind of repair method of copper-steel composite plate composition surface defect area |
| CN107900510A (en) * | 2017-11-25 | 2018-04-13 | 中车长春轨道客车股份有限公司 | Ultra-thick plate aluminum alloy section agitating friction welding welding method |
| CN109249124A (en) * | 2018-10-15 | 2019-01-22 | 江苏理工学院 | A kind of no keyhole friction stir welding method |
| CN112247340A (en) * | 2020-10-13 | 2021-01-22 | 孚斯威焊接科技(上海)有限公司 | Method for manufacturing aluminum alloy template |
| CN115091022A (en) * | 2022-07-06 | 2022-09-23 | 重庆理工大学 | Friction stir welding-based crack repairing and micro-additive method |
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| US5971252A (en) * | 1998-04-30 | 1999-10-26 | The Boeing Company | Friction stir welding process to repair voids in aluminum alloys |
| CN1275461A (en) * | 1999-05-26 | 2000-12-06 | 株式会社日立制作所 | Repairing method for connector of friction stirring |
| JP2001096378A (en) * | 2000-09-14 | 2001-04-10 | Hitachi Ltd | Method of friction welding and welded structure |
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| US6638641B2 (en) * | 2001-10-10 | 2003-10-28 | Agilent Technologies, Inc. | Friction welding with conoids |
| JP2005313235A (en) * | 2004-04-27 | 2005-11-10 | Snecma Moteurs | Method for clogging hole of metal component by friction welding and method for using metal bar and bearing supporting component for performing the method |
| CN101791747A (en) * | 2010-03-31 | 2010-08-04 | 哈尔滨工业大学 | Friction stir plug soldering method |
| CN101837513A (en) * | 2010-03-31 | 2010-09-22 | 哈尔滨工业大学 | Friction stir spot welding (FSSW) method without key hole |
| CN101966621A (en) * | 2010-11-04 | 2011-02-09 | 哈尔滨工业大学 | Electric arc preheating repair welding method for stir friction plug |
-
2011
- 2011-11-22 CN CN2011103738911A patent/CN102513688A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5971252A (en) * | 1998-04-30 | 1999-10-26 | The Boeing Company | Friction stir welding process to repair voids in aluminum alloys |
| CN1275461A (en) * | 1999-05-26 | 2000-12-06 | 株式会社日立制作所 | Repairing method for connector of friction stirring |
| JP2001096378A (en) * | 2000-09-14 | 2001-04-10 | Hitachi Ltd | Method of friction welding and welded structure |
| JP3333496B2 (en) * | 2000-09-14 | 2002-10-15 | 株式会社日立製作所 | Friction welding method and friction welding device |
| US6638641B2 (en) * | 2001-10-10 | 2003-10-28 | Agilent Technologies, Inc. | Friction welding with conoids |
| JP2005313235A (en) * | 2004-04-27 | 2005-11-10 | Snecma Moteurs | Method for clogging hole of metal component by friction welding and method for using metal bar and bearing supporting component for performing the method |
| CN101791747A (en) * | 2010-03-31 | 2010-08-04 | 哈尔滨工业大学 | Friction stir plug soldering method |
| CN101837513A (en) * | 2010-03-31 | 2010-09-22 | 哈尔滨工业大学 | Friction stir spot welding (FSSW) method without key hole |
| CN101966621A (en) * | 2010-11-04 | 2011-02-09 | 哈尔滨工业大学 | Electric arc preheating repair welding method for stir friction plug |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880826A (en) * | 2016-04-11 | 2016-08-24 | 江西理工大学 | Thick-plate FSW (friction stir welding) method capable of avoiding bottom defects and improving joint performance |
| CN105880826B (en) * | 2016-04-11 | 2017-12-15 | 江西理工大学 | A kind of slab friction stir welding method for avoiding bottom defect, improving joint performance |
| CN106238902A (en) * | 2016-08-25 | 2016-12-21 | 上海航天设备制造总厂 | A kind of friction stir welding keyhole complementing method |
| CN106271037A (en) * | 2016-08-25 | 2017-01-04 | 上海航天设备制造总厂 | A kind of stirring friction welding seam local incomplete penetration defect removing method |
| CN106624342A (en) * | 2017-01-23 | 2017-05-10 | 沈阳航空航天大学 | Method for repairing metal component volumetric defect through stirring friction welding |
| CN106624342B (en) * | 2017-01-23 | 2018-11-23 | 沈阳航空航天大学 | A method of metal component volume flaw is answered with agitating friction repair welding |
| CN107552944A (en) * | 2017-09-30 | 2018-01-09 | 清华大学 | A kind of repair method of copper-steel composite plate composition surface defect area |
| CN107900510A (en) * | 2017-11-25 | 2018-04-13 | 中车长春轨道客车股份有限公司 | Ultra-thick plate aluminum alloy section agitating friction welding welding method |
| CN109249124A (en) * | 2018-10-15 | 2019-01-22 | 江苏理工学院 | A kind of no keyhole friction stir welding method |
| CN112247340A (en) * | 2020-10-13 | 2021-01-22 | 孚斯威焊接科技(上海)有限公司 | Method for manufacturing aluminum alloy template |
| CN115091022A (en) * | 2022-07-06 | 2022-09-23 | 重庆理工大学 | Friction stir welding-based crack repairing and micro-additive method |
| CN115091022B (en) * | 2022-07-06 | 2023-12-05 | 重庆理工大学 | Crack repairing and micro-additive method based on friction stir welding |
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Application publication date: 20120627 |