Laser cladding uses a high energy laser as a heat source, metal alloy powder as welding material, through the laser and alloy powder synchronous action on the metal surface to quickly melt to form a molten pool, and then rapid solidification to form a dense, uniform and thickness controllable metallurgical bonding layer. Laser cladding is currently the most advanced welding method used for reconditioning worn components and improving their surface characteristics and extending the product life of hydraulic cylinder rods in  marine, mining, oil and gas industries. Reconditioning of hydraulic piston rods by laser cladding presents a great alternative to other repair methods such as chrome plating or metal spraying.