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Laser vision sensing based on adaptive welding for aluminum alloy |
| CHEN Zhixiang1, SONG Yonglun1, ZHANG Jun1, ZHANG Wanchun2, JIANG Li2, XIA Xuxin2 |
| 1.College of Mechanical Engineering & Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China; 2.China Aerospace Science and Technology Cooperation, Changzheng Machinary Co., Wanyuan 636371, China; |
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Abstract A laser vision sensing based on the adaptive tungsten inert gas (TIG) welding system for large-scale aluminum alloy components was established to fit various weld groove conditions. A new type of laser vision sensor was used to precisely measure the weld groove. The joint geometry data, such as the bevel angle, the gap, the area, and the mismatch, etc., aided in assembling large-scale aerospace components before welding. They were also applied for automatic seam tracking, such as automatic torch transverse alignment and torch height adjustment in welding. An adaptive welding process was realized by automatically adjusting the wire feeding speed and the welding current according to the groove conditions. The process results in a good weld formation and high welding quality, which meet the requirements of related standards.
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Issue Date: 05 June 2007
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