The root penetration status in hybrid butt welding is the most important criterion for evaluating the weld joint quality. The weld root width can be easily acquired and recognized by vision sensor system in real time. Thus the weld root width was proposed as the criterion for evaluating penetration status in CO2 laser-MIG hybrid welding. According to the weld root width, the penetration status can be divided into three categories: Partial, Moderate Full, and Excessive. The impacts on the penetration status with the variation of welding parameters and gap width were further investigated. Then penetration status detection and control system has been set up adopting vision sensor in CO2 laser-MIG hybrid welding with gapped butt. Therefore, based on the criterion of weld root width, the closed-loop control of penetration status is realized in gapped butt hybrid welding.
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International Laser Safety Conference
November 27–30, 1990
Cincinnati, Ohio, USA
ISBN:
978-0-912035-59-8
PROCEEDINGS PAPER
Criterion for online evaluation of penetration status in laser-MIG hybrid welding and its application
Yongqiang Zhang;
Yongqiang Zhang
1
Shougang Research Institute of Technology
, Beijing, 100043, Peoples Republic of China
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Wuzhu Chen;
Wuzhu Chen
2
Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, Peoples Republic of China
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Yuanqing Shuang;
Yuanqing Shuang
2
Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, Peoples Republic of China
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Jun Zhang
Jun Zhang
1
Shougang Research Institute of Technology
, Beijing, 100043, Peoples Republic of China
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Published Online:
November 01 2009
Citation
Yongqiang Zhang, Wuzhu Chen, Yuanqing Shuang, Jun Zhang; November 27–30, 1990. "Criterion for online evaluation of penetration status in laser-MIG hybrid welding and its application." Proceedings of the International Laser Safety Conference. ICALEO® 2009: 28th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Cincinnati, Ohio, USA. (pp. pp. 64-70). ASME. https://doi.org/10.2351/1.5061623
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