Welding Journal

Manufacturers routinely specify requirements, such as current, force, throat depth, and electrode stroke, for their resistance welding machines. However, dynamic performance requirements that are needed to produce consistent, high-quality welds repeatedly are often neglected. Ram/cylinder static and kinetic friction are some of these critical parameters. Excessive values expressed as a percentage of the operating force of the welding process can leave a manufacturer with elevated expulsions and weld variability ove..