Laser-Welded Joints Made of Steels 304L and 904L Used in the Automotive Industry

The article presents results of tests concerning welded joints made of alloy steels AISI 304L and AISI 904L using a high-power Nd:YAG laser. Tests involving the joints and aimed to identify their mechanical properties included tensile tests and microhardness measurements. The research work discussed in the article also involved the performance of microstructural tests of the base materials and welds as well as fractographic examinations.