Systems and Methods for Reducing Stress and Distortion During Friction Welding

A method for reducing stress and distortion in a component during a friction welding process includes securing first and second workpieces of the component within an inertia welding machine such that the first and second workpieces are affixed in opposition to each other. The method also includes securing at least one annular support member at least partially around the first workpiece and/or the second workpiece at a location having a reduced cross-section as compared to remaining portions of the first workpiece and/or the second workpiece. Further, the method includes rotating the first workpiece to a predetermined rotational speed. In addition, the method includes engaging the second workpiece with the rotating first workpiece so as to generate frictional heat therebetween, thereby welding the first and second workpieces together. As such, the annular support member(s) supports the location having the reduced cross-section during welding.