Friction Stir Welding Equipment and Method for Joining X65 Pipe

摘要

Friction stir welding (FSW) of high-temperature alloys has beensuccessfully demonstrated on flat plate. This was achieved using asystem comprised of a polycrystalline cubic boron nitride (PCBN) tool,liquid cooled tool holder, telemetry system, and proper equipmentcontrols. The knowledge and data generated from this system was usedto friction stir weld X65 pipe. A portable FSW machine to weldsurface pipeline was designed and fabricated based on the X65 pipewelding results. The method and requirements to friction stir weld pipeis discussed herein.