ALLOY BASED LASER WELDING

摘要

A method is disclosed for laser lap welding a pair of metal members together. At least one of the pair of metal members having a protective metal layer. Each of the metal members having a melt temperature greater than the melt temperature of the protective metal layer. The method includes placing one end of the pair of metal members in an overlapping relation to an other end of the pair of metal members to form an overlapping section. The method also includes inserting a metal alloying agent between the pair of metal members of the overlapping section to form a gap therebetween. A laser welder is used to join the pair of metal members and the alloying agent together so that the protective metal layer and the alloying agent are melted to form an alloy layer between the pair of metal members.