56 results about "Shot welding" patented technology

Shot welding is a type of spot welding used to join two pieces of metal together. This is accomplished by clamping the two pieces together and then passing a large electric current through them for a short period of time. Shot welding was invented by Earl J. Ragsdale, a mechanical engineer at the Budd Company, in 1932 to weld stainless steel. This welding method was used to construct the Pioneer Zephyr.