This paper reports the laser cladding of various compositions of the Tungsten carbide (WC) and Cobalt (Co) for tool repair and refurbishing applications. The engineered compositions of the WC and Co were selected to address the issues, such as - partial melting of WC particles in the Co matrix, suppression the formation of hard brittle ternary eutectic phases to ensure crack-free and pore-free deposition. The initial experiments with a pulsed Nd:YAG laser indicated the promising trend. The process parameters are being optimized to obtain desired mechanical properties (like-hardness, wear resistance, toughness etc.) with sound metallurgical bonding. The paper describes the process and material characterization through various analyses.
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