Welding and Joining Technical Publications
21. Laser Welding PM for Automotive Applications: The ability to laser weld automotive components is a determining factor in converting the currently specified wrought or cast materials to powder metallurgy (PM) parts for various applications. Material selection, process conditions and joint design are known to have a significant influence when fusion welding PM components. Welding trials were conducted to determine the appropriate laser parameters for several PM grades at various density levels. Bead-on-plate, overlap and butt joint designs were attempted, primarily without filler metal additions.
20. Fusion Welding PM Components for Automotive Applications: The paper identifies welding methods that are most often used to join PM automotive components. Various weld procedures associated with the different methods are discussed. Examples are presented along with appropriate process information. A more detailed application development involves Gas Tungsten Arc welding a stainless PM exhaust bushing to a wrought stainless steel tube.
14. PM Joining Processes, Materials and Techniques: This paper discusses the different types of joining processes most often used in conjunction with ferrous PM material grades and components. Information from previous publications and a literature review on the various processes are highlighted. Useful design information and processing techniques are listed along with identifying the weldability of various PM material compositions.