Motor shaft repairing by laser cladding

Laser cladding by powder coaxial injection was experimented for the repair of motor shafts. In this process, iron, nickel and molybdenum powders were clad onto carbon steel shafts. The microstructure, microhardness and wear resistance of the laser clad coatings and base materials were investigated. Test results show that the laser clad coatings have excellent metallurgical bonding with the substrate, have higher microhardness compared to conventional flame spray/plasma spray, and have better wear resistance properties than that of the base material.