Chinese Journal of Lasers, Volume. 39, Issue 1, 103008(2012)
Effects of Incident Angle on Welding Performance of Fiber Laser Butt Welding of High-Strength Automobile Steel
The effects of incident angle on welding performance of fiber laser butt welding of high-strength automobile steel are researched. The ideal parameters obtained by the previous test is used. The 4 kW fiber laser is used to weld the dual-phase high-strength steel B340/590DP with the thickness of 1.6 mm at different incident angles with a butt joint. Then the effects of incident angle on the weld topography, cross section topography, tension and shearing property and micro-structure are analyzed. The results show that good weld topography, fine micro-structure and greater tension and shearing property can be obtained when the laser beam incident angle is less than 40°. When the incident angle is more than 40°, the single-sided weld is obtained on the back of the bead.
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Chen Genyu, Kang Bin, Zhang Yi, Li Shichun, Tan Lipeng. Effects of Incident Angle on Welding Performance of Fiber Laser Butt Welding of High-Strength Automobile Steel[J]. Chinese Journal of Lasers, 2012, 39(1): 103008
Category: laser manufacturing
Received: Aug. 16, 2011
Accepted: --
Published Online: Jan. 6, 2012
The Author Email: Genyu Chen (hdgychen@163.com)