Electrode Extruder Using Screw Conveyor

Abstract

Welding electrodes are metal wires with chemical coatings. It is widely used in arc welding process. The metal rod is used to sustain the welding arc and to provide the filler metal required for the joint to be welded. The coating protects the metal from damage due to oxidation, stabilizes the arc, and improves the weld. Our paper is concerned with the design and fabrication of manually operated device that produces such welding electrodes. It follows the extrusion principle and screw conveyor concept. It is done by passing the electrode and the flux material through a die. It is a simple setup from which electrodes can be manufactured easily.