welding.

Metal techniques

Friction welding takes many forms but the following are the most popular methods used.

Rotary friction welding

Rotary friction welding (RFW) is one of the main methods of friction welding. One welded element is rotated relative to the other and pressed down. The heating of the material is caused by friction work and creates a non-separable weld.

Radial friction welding

Radial friction welding is a type of friction welding similar to rotary friction welding and is generally

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