A novel rotatable inner-surface laser cladding method

Inner-surface laser cladding method has great potential on industry communities. A novel RILC (Rotatable Inner-surface Laser Cladding) equipment was developed to prepare inner-surface cladding layer for heavy or asymmetric work piece. Wear resistance cladding layer was prepared onto the inner-surface of aluminum cylinder by RILC method. The cladding layer greatly increased the hardness of inner-surface, and exhibited high wear resistance and relatively low friction coefficient based on pin-on-disk wear test. Thermocouples were applied to study the thermal cycling of the substrate during cladding process.