Novel Reduced-friction Materials by Laser Cladding of Copper Alloy on Cast Iron

Xichen YANG Milin ZHONG Tianxi ZHENG Naikun ZHANG Laser Processing Lab.,Tianjin Institute of Textile Science and Technology,Tianjin,300160,China

摘 要：<正> Copper alloys suitable for laser cladding on cast iron are selected trom rune types of conventionalpowders. There are a poor spreading ability and porosity of copper alloy over the surface of castiron.Copper alloy surface is easily oxidized in atmosphere. These shortages have been overcome by ad-ding deoxidizers of Si and H₃BO₃. Laser parameters, stress and coefficient of friction have been ex-amined, and the larger smooth surface of Cu/cast iron for friction by laser cladding has been madefor the application of the guide shoes of machine.

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