Electric Wire Arc Spray

For the electric arc wire spray process, we use two metallic wires, usually of the same composition, as the coating feedstock. The two wires are electrically charged with opposing polarity and are fed into the arc gun at matched, controlled speeds. When we bring the wires together at the contact point, the opposing charges on the wires create enough heat to continuously melt the tips of the wires. We use compressed air to atomize the now molten material and accelerate it onto the workpiece surface to form the coating.

Process basics