CN110788472A - Friction stir welding process method suitable for butt-joint type copper-aluminum transition wire clamp - Google Patents
Friction stir welding process method suitable for butt-joint type copper-aluminum transition wire clamp Download PDFInfo
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- CN110788472A CN110788472A CN201910922351.0A CN201910922351A CN110788472A CN 110788472 A CN110788472 A CN 110788472A CN 201910922351 A CN201910922351 A CN 201910922351A CN 110788472 A CN110788472 A CN 110788472A
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- China
- Prior art keywords
- butt
- copper
- aluminum
- wire clamp
- stirring
- Prior art date
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Classifications
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/123—Controlling or monitoring the welding process
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a friction stir welding process method suitable for a butt-joint copper-aluminum transition wire clamp, which comprises the following steps of firstly fixing a copper end and an aluminum end by using a clamp; the process parameters of 15mm of shaft shoulder diameter of the stirring head, 5mm of diameter of the stirring needle, 5.1mm of length of the stirring needle, 960r/min of rotating speed of the stirring head and 60mm/min of welding speed are adopted, and the welded finished product is subjected to stress-relief tempering treatment. Through the matching of all process parameters, the method is suitable for welding the butt-joint copper-aluminum transition wire clamp with large plate thickness, can obtain high welding quality, and has long service life of a finished product after subsequent stress relief tempering treatment.
Description
Technical Field
The invention belongs to the technical field of operation and maintenance of electric power systems, and particularly relates to a friction stir welding process method suitable for a butt-joint copper-aluminum transition wire clamp.
Background
The butt-joint copper-aluminum transition wire clamp is a typical copper-aluminum connecting device widely applied in the power industry. The welding of the dissimilar metals of aluminum and copper is difficult because the physical properties of the two are greatly different. The butt-joint copper-aluminum transition wire clamp is mainly produced by adopting a flash welding process, and an aluminum base metal and a copper base metal are butted together. The butt-joint copper-aluminum transition wire clamp adopting the flash welding process has the disadvantages of complex process, easy existence of welding defects such as cracks, misalignment, non-fusion and the like at a welding seam, and higher welding cost. The thickness of the copper-aluminum transition wire clamp is large, the temperature gradient in the thickness direction is large, the range of suitable technological parameters is narrow, and the reliable welding quality has high requirements on the structure of the stirring head and the technological parameters.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a friction stir welding process method which is suitable for a butt-joint copper-aluminum transition wire clamp and realizes higher welding quality by the mutual matching of a stirring head structure and process parameters.
The invention adopts the following specific technical scheme:
a friction stir welding process method suitable for a butt-joint copper-aluminum transition wire clamp is characterized by comprising the following steps: the method comprises the following steps:
⑴ fixing the copper end and the aluminum end with a clamp;
⑵ the shaft shoulder diameter of the stirring head is 15mm, the diameter of the stirring needle is 5mm, and the length of the stirring needle is 5.1 mm;
⑶ the rotating speed of the stirring head is 960r/min, and the welding speed is 60 mm/min;
⑷ butt-joint double-sided stirring welding of the copper plate and the aluminum plate;
⑸ the welded product is subjected to stress relief tempering.
Further, the conditions for the stress-relief tempering are as follows: the treatment temperature is 300 ℃, the heat preservation time is 2 hours, and finally, the air cooling is carried out to the room temperature.
The invention has the advantages and beneficial effects that:
in the invention, firstly, a clamp is used for fixing the copper end and the aluminum end; the process parameters of 15mm of shaft shoulder diameter of the stirring head, 5mm of diameter of the stirring needle, 5.1mm of length of the stirring needle, 960r/min of rotating speed of the stirring head and 60mm/min of welding speed are adopted, and the welded finished product is subjected to stress-relief tempering treatment. Through the matching of all process parameters, the method is suitable for welding the butt-joint copper-aluminum transition wire clamp with large plate thickness, can obtain high welding quality, and has long service life of a finished product after subsequent stress relief tempering treatment.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention is further described in the following examples, but the technical content described in the examples is illustrative and not restrictive, and the scope of the present invention should not be limited thereby.
A friction stir welding process method suitable for a butt-joint copper-aluminum transition wire clamp is disclosed, as shown in figure 1, the innovation of the invention is as follows: the method comprises the following steps:
⑴ fixing the copper end and the aluminum end with a clamp;
⑵ the shaft shoulder diameter of the stirring head is 15mm, the diameter of the stirring needle is 5mm, and the length of the stirring needle is 5.1 mm;
⑶ the rotating speed of the stirring head is 960r/min, and the welding speed is 60 mm/min;
⑷ butt-joint double-sided stirring welding of the copper plate and the aluminum plate;
⑸ the welded product is subjected to stress relief tempering.
The conditions of the stress relief tempering are as follows: the treatment temperature is 300 ℃, the heat preservation time is 2 hours, and finally, the air cooling is carried out to the room temperature.
In the invention, firstly, a clamp is used for fixing the copper end and the aluminum end; the process parameters of 15mm of shaft shoulder diameter of the stirring head, 5mm of diameter of the stirring needle, 5.1mm of length of the stirring needle, 960r/min of rotating speed of the stirring head and 60mm/min of welding speed are adopted, and the welded finished product is subjected to stress-relief tempering treatment. Through the matching of all process parameters, the method is suitable for welding the butt-joint copper-aluminum transition wire clamp with large plate thickness, can obtain high welding quality, and has long service life of a finished product after subsequent stress relief tempering treatment.
Claims (2)
1. A friction stir welding process method suitable for a butt-joint copper-aluminum transition wire clamp is characterized by comprising the following steps: the method comprises the following steps:
⑴ fixing the copper end and the aluminum end with a clamp;
⑵ the shaft shoulder diameter of the stirring head is 15mm, the diameter of the stirring needle is 5mm, and the length of the stirring needle is 5.1 mm;
⑶ the rotating speed of the stirring head is 960r/min, and the welding speed is 60 mm/min;
⑷ butt-joint double-sided stirring welding of the copper plate and the aluminum plate;
⑸ the welded product is subjected to stress relief tempering.
2. The friction stir welding process method suitable for the butt-joint copper-aluminum transition wire clamp according to claim 1, characterized in that: the conditions of the stress relief tempering are as follows: the treatment temperature is 300 ℃, the heat preservation time is 2 hours, and finally, the air cooling is carried out to the room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910922351.0A CN110788472A (en) | 2019-09-27 | 2019-09-27 | Friction stir welding process method suitable for butt-joint type copper-aluminum transition wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910922351.0A CN110788472A (en) | 2019-09-27 | 2019-09-27 | Friction stir welding process method suitable for butt-joint type copper-aluminum transition wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110788472A true CN110788472A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910922351.0A Pending CN110788472A (en) | 2019-09-27 | 2019-09-27 | Friction stir welding process method suitable for butt-joint type copper-aluminum transition wire clamp |
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| CN (1) | CN110788472A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894123A (en) * | 2021-01-29 | 2021-06-04 | 华南理工大学 | Friction stir welding method for aluminum-copper dissimilar metal |
Citations (7)
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|---|---|---|---|---|
| CN101612690A (en) * | 2009-07-14 | 2009-12-30 | 哈尔滨工业大学 | A kind of Cu-Al dissimilar materials butt joint barrier friction stir welding method |
| CN102794562A (en) * | 2012-08-24 | 2012-11-28 | 北京科技大学 | Reacting friction stir welding method applicable for connecting aluminum alloy to copper alloy |
| CN104923911A (en) * | 2015-07-16 | 2015-09-23 | 辽宁石油化工大学 | Dissimilar metal friction-stir welding one-side welding double-side forming method and device |
| CN204818415U (en) * | 2015-08-03 | 2015-12-02 | 黄山学院 | Copper alloy and aluminum alloy xenogenesis friction stir welding connect clamping device |
| CN108620762A (en) * | 2018-04-27 | 2018-10-09 | 航天工程装备（苏州）有限公司 | A method of improving Al-Cu dissimilar metal agitating friction weldering banjo fixing butt jointing quality |
| CN109202275A (en) * | 2018-09-30 | 2019-01-15 | 西安交通大学 | The heavier-duty friction stir welding method for being thinned and improving shaping surface is prevented with the permanent stiffening plate of wide cut |
| CN109623128A (en) * | 2018-12-07 | 2019-04-16 | 南京理工大学 | A kind of stirring-head and welding procedure for Solder for Al-Cu Joint Welding dissimilar metal object Hybrid connections |
-
2019
- 2019-09-27 CN CN201910922351.0A patent/CN110788472A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101612690A (en) * | 2009-07-14 | 2009-12-30 | 哈尔滨工业大学 | A kind of Cu-Al dissimilar materials butt joint barrier friction stir welding method |
| CN102794562A (en) * | 2012-08-24 | 2012-11-28 | 北京科技大学 | Reacting friction stir welding method applicable for connecting aluminum alloy to copper alloy |
| CN104923911A (en) * | 2015-07-16 | 2015-09-23 | 辽宁石油化工大学 | Dissimilar metal friction-stir welding one-side welding double-side forming method and device |
| CN204818415U (en) * | 2015-08-03 | 2015-12-02 | 黄山学院 | Copper alloy and aluminum alloy xenogenesis friction stir welding connect clamping device |
| CN108620762A (en) * | 2018-04-27 | 2018-10-09 | 航天工程装备（苏州）有限公司 | A method of improving Al-Cu dissimilar metal agitating friction weldering banjo fixing butt jointing quality |
| CN109202275A (en) * | 2018-09-30 | 2019-01-15 | 西安交通大学 | The heavier-duty friction stir welding method for being thinned and improving shaping surface is prevented with the permanent stiffening plate of wide cut |
| CN109623128A (en) * | 2018-12-07 | 2019-04-16 | 南京理工大学 | A kind of stirring-head and welding procedure for Solder for Al-Cu Joint Welding dissimilar metal object Hybrid connections |
Non-Patent Citations (4)
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| 万於辉: "铜/铝搅拌摩擦焊工艺研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 刘强: "Cu/Al连续驱动摩擦焊工艺及性能研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 董吉谔: "《电力金具手册》", 30 June 2001 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894123A (en) * | 2021-01-29 | 2021-06-04 | 华南理工大学 | Friction stir welding method for aluminum-copper dissimilar metal |
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Application publication date: 20200214 |