Hitachi America, Ltd. R&D Division - Friction Stir Welding Friction Stir Welding Friction Stir Welding (FSW) is a solid state energy efficient joining technique with several advantages. HITSPIN TM Friction Stir Welding equipment developed by HITACHI, provides welding solutions for a wide range of applications. Operating Principle Process Advantages: 1. Solid State Welding Process No melting of base metal No loss of alloying element No fumes or spatter 2. Can easily weld 3D seam Butt, Lap, T-Joint etc. 3. Simple Process No shielding gas No consumables (filler wire) No surface treatment Unique features of FSW: Very low distortion No porosity or solidification cracking Weld region has a fine grain structure than the base metal Excellent Mechanical properties (strength, elongation, etc.)
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Hitachi America, Ltd. R&D Division - Friction Stir Welding€¦ · Friction Stir Welding Friction Stir Welding (FSW) is a solid state energy efficient joining technique with several
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