Cutting with a carbon electrode is a metal removal process that uses heat generated by a carbon arc. The process employs a carbon/graphite electrode, compressed air, and a standard power source. The intense electric arc formed between the tip of a carbon electrode and a metal workpiece melts and cuts the workpiece. The arc is initiated by striking the electrode tip against the surface of the workpiece. Compressed air is then used to blow the molten metal away from the workpiece surface. The metal is cut or gouged only in the direction of the airflow. This process is simple to perform. Its main purpose is the removal of defective or old welds for repair or disassembly of equipment. To prevent excessive overheating and premature damage to the electrode, the tip of the electrode should not protrude more than 15 cm from the clamp.