Study on Laser Additive Joining Process of Stainless Steel and Copper Alloy
DOI:
https://doi.org/10.54097/az901960Keywords:
Laser additive joining; Steel and copper; Microstructure; Mechanical properties.Abstract
This study achieved the joining of 316 stainless steel and T3 copper using a laser additive joining method. The process feasibility of using pure 316 stainless steel powder and pure copper powder as filler materials for additive joining was investigated, and the influence of different joining processes on the microstructure evolution and mechanical properties of the joints was analyzed. The research indicates that when pure 316 powder is used as the filler material, with a laser heating power of 1.8 kW on the steel side and 2.2 kW on the copper side, the joint formation is optimal, and the tensile strength of the joint reaches 250.3 MPa. When pure copper powder is used as the joining material, the internal stress within the joint is relatively large, and aging fracture occurs in the transition zone on the copper side.
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