Q. What is the purpose of the earth clamp in welding?

Answer

The earth clamp is a device used to close the electrical circuit between the welding power source and the object being welded by means of an earth cable. Connecting the electrode holder clamp to the earth clamp and the earth clamp to the power source creates an electrical connection between the electrode and the base material. Using the maximum welding current in amps as a guide, select the cable segment and length. Specialized components are sometimes built into welding power sources to improve the user experience. Anti-stick, hot-start, and arc-force devices are outlined. The arc force device helps transmit droplets of molten from the electrode to the raw product without short-circuiting the electrode and weld pool.