Welding and Joining Processes - Friction Welding

Login to get an online quote for friction welding or conduct an advanced search of our network.

Friction welding is carried out by moving one component relative to the other along a common interface, while applying a compressive force across the joint. The friction heating generated at the interface softens both components, and when they become plasticised the interface material is extruded out of the edges of the joint so that clean material from each component is left along the original interface. The relative motion is then stopped, and a higher final compressive force may be applied before the joint is allowed to cool. The key to friction welding is that no molten material is generated, the weld being formed in the solid state.

There are 3 main types of friction welding: Rotary friction welding where the components are rotated against each other (as in the welding of axles), Linear friction Welding where the components are rubbed together in a linear motion (such as attaching blades onto discs for aero engines), and friction stir welding where a shouldered pin to shaft is rotary welded in place with the shoulder covering any visible joint.

New developments in friction welding or wood welding have discovered that wood can also be joined using this technique with no adhesive required.

Suppliers With This Capability

Amiga Engineering Pty Ltd   Tullamarine VIC