Variable polarity plasma arc welding process for thick aluminum alloy - 文章详情页

作者：

Han, Yongquan (Han, Yongquan.) | Chen, Shujun (Chen, Shujun.) (学者：陈树君) | Yin, Shuyan (Yin, Shuyan.) | Lu, Yaohui (Lu, Yaohui.)

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摘要：

A　double　invert　variable　polarity　plasma　arc　(VPPA)　power　source　based　on　16-bit　MCU　which　is　used　for　aluminum　alloys　is　introduced.　The　mechanics　characteristics　of　VPPA　are　analyzed.　The　arc　stability,　arc　energy,　the　transferring　characteristics　of　the　arc　pressure　and　the　reliability　of　VPPA　power　source　as　well　have　been　researched.　It　is　found　that　during　the　VPPA　welding　procedure　of　aluminum　alloy,　the　arc　of　EN　has　more　effect　on　force;　the　arc　of　EP　has　more　effect　on　thermal,　and　to　keep　the　balance　of　the　force　and　thermal　is　the　sticking　point　of　VPPA.　This　power　source　is　used　to　weld　aluminum　alloy　with　15　mm　thickness　successfully.　The　conclusions　will　make　sense　to　the　application　of　the　variable　polarity　plasma　arc　welding　technique　in　the　aerospace　industry.

关键词：

Aerospace industry Aluminum alloys Microcomputers Plasma welding Welding machines

作者机构：

[ 1 ] [Han, Yongquan]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Han, Yongquan]College of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010062, China
[ 3 ] [Chen, Shujun]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Yin, Shuyan]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Lu, Yaohui]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China

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