William Arbegast

William John Arbegast, Jr. (11 April 1951– 28 November 2009) was an American metallurgical engineer, mechanical engineer and friction stir welding expert.

William Arbegast

William John Arbegast, Jr. (11 April 1951– 28 November 2009) was an American metallurgical engineer, mechanical engineer and friction stir welding expert.