Elsevier

Journal of Materials Research and Technology

Volume 11, March–April 2021, Pages 1434-1442
Journal of Materials Research and Technology

Short Communication
Optimization of the tensile-shear strength of laser-welded lap joints of ultra-high strength abrasion resistance steel

https://doi.org/10.1016/j.jmrt.2021.01.121Get rights and content
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open access

Abstract

The tensile-shear strength of laser-welded lap joints developed in abrasion resistance ultra-high strength ARS-600 steel was optimized by evaluating the joints achieved with different welding parameters and various configurations of weld patterns, including multiple continuous longitudinal and transverse weldments. The microstructural evolution of the fusion zone was characterized by electron backscatter diffraction (EBSD) after welding with different values of energy input (60–320 J/mm). Furthermore, in order to better comprehend the shear response of different weld patterns, stress analysis of various longitudinal and transverse lap joints was conducted by the finite element method (FEM).

Keywords

Tensile-shear strength
Laser-welding
Lap joints

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