Laser scanner welding processing of automobile panels

QI Xiaoyong; LI Daojin; YE Bing; WANG Aihua

doi:10.7510/jgjs.issn.1001-3806.2016.06.011

In order to research the process of laser scanner welding, the laser scanner welding process of 0.7mm galvanized sheet and 0.8mm cold-rolled sheet(SPCC)with a 4kW fiber laser was analyzed in theory and verified in experiments. The influence of the gap between the sheets, laser power and scanning speed on macro-morphology and strength were obtained. The results show that the welded seams achieved by laser parameters of plate gap 0.1mm~0.2mm, laser power 3kW~4kW and welding speed 3m/min have the strength higher than the base metal, and can satisfy the C-class of electron and laser beam welded joints (levels guidance for quality imperfaction). Laser scanner welding can get a high quality welding seam without shielding gas when selecting right parameters.

Laser scanner welding processing of automobile panels

1. Hubei Key Laboratory of Laser Advanced Manufacture Technology, Wuhan 430223, China;

2. Wuhan Huagong Laser Engineering Co. Ltd., Wuhan 430223, China

Received Date: 2015-10-27

Accepted Date: 2015-11-26

Available Online: 2016-11-25

Abstract: In order to research the process of laser scanner welding, the laser scanner welding process of 0.7mm galvanized sheet and 0.8mm cold-rolled sheet(SPCC)with a 4kW fiber laser was analyzed in theory and verified in experiments. The influence of the gap between the sheets, laser power and scanning speed on macro-morphology and strength were obtained. The results show that the welded seams achieved by laser parameters of plate gap 0.1mm~0.2mm, laser power 3kW~4kW and welding speed 3m/min have the strength higher than the base metal, and can satisfy the C-class of electron and laser beam welded joints (levels guidance for quality imperfaction). Laser scanner welding can get a high quality welding seam without shielding gas when selecting right parameters.

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Reference (14)

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Laser scanner welding processing of automobile panels

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References

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通讯作者: 陈斌, bchen63@163.com

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