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2007年 第2卷 第2期

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《机械工程前沿（英文）》 >> 2007年 第2卷 第2期 doi: 10.1007/s11465-007-0038-2

Laser vision sensing based on adaptive welding for aluminum alloy

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;

发布日期： 2007-06-05
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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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