Friction Stir Welding

What is Friction Stir Welding

Friction stir welding is a completely solid-state welding process that relies on local forging and extrusion created by a rotating pin tool.

Advantages of Friction Stir Welding

  • No melting of materials
  • Low heat input into substrate –> Minimal degradation and/or distortion
  • Very high joint strengths possible -> Typically 70-90% joint efficiency
  • Full penetration joints in a single pass -> Thicknesses from 0.020 in. to 3 in.
  • Highly dissimilar materials can be joined
  • Virtually all metals and many plastics can be joined

cfsphome website
Visit the Center for Friction Stir Processing website for more information about FSW projects and research.