Tool Designs and Methods for Friction Stir Welding of Steel and Stainless Steel Alloys

摘要

Friction stir welding (FSW) is a solid state joining process providingmany advantages over typical arc welding processes. Although initiallydeveloped for low melting point materials such as aluminum alloys,recent developments in tool materials have enabled FSW to be appliedto higher melting temperature materials such as alloys of steel andstainless steel. Though there are similarities between FSW in bothaluminum and steel, there are significant differences necessitated by thehigher temperature required for steel and stainless steel. This paperpresents tool and processing differences required for full penetrationwelding in steel and stainless steel friction stir welds.