China FSW Center Beijing FSW Technology Co., Ltd as a professional organization takes charge of the engineering applications and industrialization of FSW technology in China territory, at the same time, CFSWC holds plenty of national key scientific research projects on FSW. The professional R&D working team in CFSWC is committed to the long-term research work on FSW technology and its engineering applications, which covers research work on Aluminium alloy, Magnesium alloy, Copper, Stainless steel and Titanium with different welding structures, like: straight weld in flat plate, longitudinal & circumferential weld in cylinder, 2-D curvilinear weld in plane and parabola weld in curved surface with thickness from 0.8mm to 70mm. CFSWC has obtained a series of FSW patents in process control and thus formed a set of systemic theory of controls, such as position control, pressure control, torque control, etc.   • Straight weld in flat plates Large wall panel joining Large I-rib plate joining Hollow section joining         Special structures joining Heat Sinks Al plates with thickness 40mm         Thin Al plates Thin Magnesium plates Thin Copper plates Thin Titanium plates         • Longitudinal & circumferential weld in cylinder Ф3350mm (circumferential) Ф2250mm (longitudinal) Ф1400mm (circumferential, thickness 25mm)         Ф92mm (circumferential) Ф10mm (circumferential) Lap joining between plate and cylinder         • 2-D curvilinear weld in plane 2-D curvilinear weld in plane Curvilinear weld for covers         • FSW technology development & applications Friction Stir Plug Welding sample Key hole removing technology Defect repair for cast         CFSWC has developed Friction Stir Plug Welding technology for special requirements on key hole, and obtained dense weld, which can be used for defect repairs and for removing key hole. CFSWC also succeeded in surface modification and new material preparation by use of FSW technology, and has gotten the ultra-fine grain structure.