The Nazarov method for cold welding of cast iron with electrode bundles of thickly coated stick electrodes and copper wire was
demonstrated in Nauen (German Democratic Republic) on the "Day of the Soviet innovator" on 26 January 1955.
George Pellissier was the first American to use Thermite®
welding commercially for laying 1 mile of track of the Holyoke Street Railway in Massachusetts.
Stanley Rockwell invented together with Hugh M. Rockwell, who was the son of his employer but probably not a relative, the
Rockwell hardness testing machine.