Welding Journal

Long known as water hogs, resistance welding machines, including the subcategories of spot, projection, seam, upset, and flash welding machines, generate heat due to the high secondary welding amperages required for the process.

Therefore, an adequate flow of cooling water is one of the process’s most important variables, especially when a resistance welding machine is part of a high-speed production line. Depending on the application, conventional alternating current (AC) resistance welding machines require ..