Research on laser welding parameters between 20# steel and 45# steel

Lian-jie Li

doi:10.1117/12.2651913

2 November 2022 Research on laser welding parameters between 20# steel and 45# steel

Lian-jie Li

Proceedings Volume 12351, International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022); 123510Y (2022) https://doi.org/10.1117/12.2651913
Event: International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022), 2022, Nanjing, China

Abstract

By changing the welding process parameters (mainly the laser power P and spot diameter D), the effect of the laser welding process on the quality of the weld seam was studied for 20# and 45# steel dissimilar steels. The results show that the tensile strength of the welded joint increases with increasing laser power and decreases with increasing spot diameter. The hardness distribution of welded joints basically shows a symmetrical distribution with the weld as the center. During the welding process, the weld zone produced martensite and bainite organizations, and there was also migration of carbon elements at the welded joint.

Citation Download Citation

Lian-jie Li "Research on laser welding parameters between 20# steel and 45# steel", Proc. SPIE 12351, International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022), 123510Y (2 November 2022); https://doi.org/10.1117/12.2651913

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