Resistance Projection Welding Diagram. The name resistance welding derives from. Resistance Welding is a method of joining metals.
R is an electric resistance and the unit of this is Ohm. Weld expulsion is one of the most common welding defects during resistance spot welding RSW process especially for high strength steels HSS. Metal thickness and composition is a significant matter here.
Is a special resistance welding process where a spot weld is made with only one electrode accessing from one side to the weld zone with or without a backing plate from the other side.
Some of these methods are listed below in order to illustrate how resistance welding differs from the others. Disadvantages of Projection Welding. Resistance welding is one of many methods of fastening two or more pieces of metal together. INTRODUCTION TO RESISTANCE WELDING What is Resistance Welding.