Effect of laser incident angles on welding performance of galvanized sheet for vehicle body

CHEN Gen-yu; WANG Zu-jian; MEI Li-fang; LI Shi-chun

doi:10.3969/j.issn.1001-3806.2010.06.003

LASER TECHNOLOGY > 2010 > 34(6): 729-732. > DOI: 10.3969/j.issn.1001-3806.2010.06.003

CHEN Gen-yu, WANG Zu-jian, MEI Li-fang, LI Shi-chun. Effect of laser incident angles on welding performance of galvanized sheet for vehicle body[J]. LASER TECHNOLOGY, 2010, 34(6): 729-732. DOI: 10.3969/j.issn.1001-3806.2010.06.003

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Effect of laser incident angles on welding performance of galvanized sheet for vehicle body

1.
State Key Laboratory of Advanced Design and Manufacturing for Body, Hunan University, Changsha 410082, China;
2.
Laser Research Institute, Hunan University, Changsha 410082, China

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Received Date: January 05, 2010
Revised Date: February 18, 2010
Published Date: November 24, 2010

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Abstract

Abstract

In order to study effect of laser incident angles on welding performance of galvanized sheet,firstly orthogonal test was adopted to obtain ideal welding parameters at normal incidence through analyzing the weld topography,tension and shear load.Then galvanized sheet welding tests at different incident angles were carried out under the same ideal parameters at vertical incidence.The transverse weld topography,the connect width between plates and tension and shear load were analyzed when the incident angle changed.The research results show that fine weld topography and greater tension and shear load can be obtained at incident angle less than 30°;the connect width between plates has an significant influence on tension and shear load;slight change of the gap between plates will bring large effect on the critical incident angle.
- laser technique,
- laser welding,
- incident angle,
- orthogonal test,
- galvanized sheet,
- vehicle body

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