METHOD FOR THE PROJECTION WELDING OF HIGH-CARBON STEELS AND HIGH-TENSION LOW-ALLOY STEELS

摘要

The present invention provides an improved method of projection welding that enables sonic welding of high carbon steels and high tensile low alloy steels.;A spacer is disposed between the two members welded by projection welding. At least one of the members is made of high carbon steel or high strength low alloy steels. The spacer is a thin film, or a film formed on at least one of the members.