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

pdf icon 35px   What is Friction Stir Welding?

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