Laser Hardening is a Heat Treatment Process or Surface Hardening Process in which a Laser  Beam is used to heat the surface of a Metal Part and then let it quickly cool down in surrounding air. The temperature is monitored by a Pyrometer. Laser Hardening requires less Refinishing work and has the ability to process Irregular, Three-Dimensional work pieces. Laser Hardening increases Hardness and Wear Resistance, which leads to reduction of Abrasive Wear.