Nearly all materials can be coated with the electric-arc process, e.g. aluminum, cast iron, plastics, textiles or even wood. The base material has a subordinated role. An outstanding advantage of metal spraying is the distortion-free coating with all metals available as wire.

Arc spraying is our specialty

Electric arc spraying (EASP) is a thermal spraying process that uses an electric arc between two consumable electrodes of the surfacing materials as the heat source. A compressed gas atomizes and propels the molten material to the workpiece.

The two consumable electrode wires are fed by a wire feeder to bring them together at an angle of approximately 30 degrees and to maintain an arc between them. A compressed air jet is located behind and directly in line with the intersecting wires. The wires melt in the arc and the jet of air atomizes the melted metal and propels the fine molten particles to the workpiece. The power source for producing the arc is a direct-current constant-voltage welding machine.

The wire feeder is similar to that used for gas metal arc welding except that it feeds two wires. The gun can be hand held or mounted in a holding and movement mechanism. The part or the gun is moved with respect to the other to provide a coating surface on the part.

How does Electric Arc Spraying work?