These recommended practices for friction welding are intended to serve as a basic guide for those interested in using any of the variations of this process as a method of joining two or more pieces.

Contained in this document are process fundamentals and requirements, equipment descriptions, joint design basics and material compatibilities. Suggested qualification procedures and inspection methods along with a review of present applications and typical mechanical property data are included. Consideration of these suggested measures will aid in the efficient utilization of friction welding in a wide range of applications.