Two companies have favorably commercialized an auto-adjustable pin tool technology evolveed for the friction stir welding proces at NASA's Marshall Space Flight Center in Huntsville.

Two companies have favorably commercialized an auto-adjustable pin tool technology evolveed for the friction stir welding proces at NASA's Marshall Space Flight Center in Huntsville, Ala. Friction stir welding is based upon the high rotational speed of a pin and the resulting frictional heat, to forge a ligament between two metal alloys. The technique is more