The use of friction stir processing and friction stir welding for nitinol medical devices

摘要

Metallic materials may be joined utilizing a friction stir processing technique. The friction stir processing technique utilizes a shaped, rotating tool to move material from one side of the joint to be welded to the other without liquefying the base material.;In one embodiment, a method of welding nickel-titanium alloys is disclosed which comprises: positioning a rotating tool in the joint between a first material and a second material; rotating the tool at a predetermined velocity to move the material from one side of the joint to the other side of the joint; and moving the rotating tool from one end of the joint to the other end of the joint.