A novel reduced-friction materials by laser cladding of copper alloy on cast iron

Copper alloys suitable for laser cladding on cast iron are selected from nine types of conventional powders. There are a poor spread ability and gas hole of copper alloy over surface of cast iron, copper alloy surface is easely oxidized in atmosphere. these Shortages have been overcomed by adding deoxidizers of Si and H3BO3. Laser parametres strict controll and dilution, macro and micro structures, bonding stress and cofficient of friction have been examined, and the larger smooth surface of Cu/cast iron for friction by laser cladding have been made for application of the guide shoes of machine.Copper alloys suitable for laser cladding on cast iron are selected from nine types of conventional powders. There are a poor spread ability and gas hole of copper alloy over surface of cast iron, copper alloy surface is easely oxidized in atmosphere. these Shortages have been overcomed by adding deoxidizers of Si and H3BO3. Laser parametres strict controll and dilution, macro and micro structures, bonding stress and cofficient of friction have been examined, and the larger smooth surface of Cu/cast iron for friction by laser cladding have been made for application of the guide shoes of machine.