Parameter optimization of laser keyhole spot welding of Al/steel based on orthogonal experiment design

XIAO Rui; YANG Jin; LIU Hongbing; ZHAO Yixuan; DENG Peiran

doi:10.12299/jsues.21-0087

Volume 36 Issue 3

Jun. 2022

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Article Navigation > Journal of Shanghai University of Engineering Science > 2022 > 36(3): 290-294, 323

XIAO Rui, YANG Jin, LIU Hongbing, ZHAO Yixuan, DENG Peiran. Parameter optimization of laser keyhole spot welding of Al/steel based on orthogonal experiment design[J]. Journal of Shanghai University of Engineering Science, 2022, 36(3): 290-294, 323. doi: 10.12299/jsues.21-0087

Citation:

XIAO Rui, YANG Jin, LIU Hongbing, ZHAO Yixuan, DENG Peiran. Parameter optimization of laser keyhole spot welding of Al/steel based on orthogonal experiment design[J]. Journal of Shanghai University of Engineering Science, 2022, 36(3): 290-294, 323. doi: 10.12299/jsues.21-0087

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Parameter optimization of laser keyhole spot welding of Al/steel based on orthogonal experiment design

doi: 10.12299/jsues.21-0087

School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2021-05-10
Publish Date: 2022-06-30

Abstract

Abstract

Aluminum and steel were welded by laser keyhole spot welding technology. The laser keyhole spot welding of Al/steel was tested by orthogonal experiment, influences of time, laser power and defocusing amount on mechanical properties of the joint were studied. The results show that the influence of laser power on the mechanical properties of Al/steel laser keyhole spot welding joints is the greatest, then defocusing amount, welding time affect the minimum. The optimal parameters are laser power 2.85 kW, defocusing amount 22 mm, duration 3 s, and tensile load is 1470 N. The cone-like fusion zone was formed at the weld seam and there was no crack, intermetallic compounds (IMCs) containing Fe₃Al, FeAl and FeAl₂were formed at the interface. The maximum microhardness (HV) of the joint is 810.
- laser keyhole spot welding,
- orthogonal experiment,
- intermetallic compounds (IMCs),
- mechanical properties

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References(10)

References

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