Thin interlayer friction welding

Abstract

A method of welding an assembly comprising two aligned cylindrical end pieces and an interposed transverse intermediate piece, the method comprising friction welding the end pieces to the intermediate piece, where the intermediate piece is held in a cavity of a holder. The intermediate piece is made from strip stock and has a non-round profile to form radially protruding ears, the ears contacting the correspondingly shaped cavity in the holder.

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