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采用含有多量镍、钴以及不同含量的铬、硅、硼、铝等元素的合金粉末喷涂或喷焊机器零件表面,由于喷焊层的表面硬度一般均在HRC45以上(有的高达HRC66),刀具磨损严重且切削加工困难。为了推广应用喷涂、喷焊工艺,必须首先解决喷层的切削加工工艺。本试验根据喷涂、喷焊层的特性,以及喷层加工余量少(主要是精加32)的特点,选用了复合立方氮化硼(CBN)、YT30、YW2、YTl5、YT14、YG3X、813、643、1号、川6、T20、600等不同刀片材料在车床进行外圆切削试验,在保证加工件尺寸精度和表面光洁度等技术要求下,探索喷涂、喷焊层精
Spraying or spraying the surface of the machine parts with alloy powder containing a large amount of nickel, cobalt and different contents of chromium, silicon, boron, aluminum and other elements, the surface hardness of the sprayed layer is generally above HRC45 (some up to HRC66) Tool wear and cutting difficult. In order to promote the use of spraying, spray welding process, we must first solve the jet cutting process. According to the characteristics of spray coating, spray coating and the processing margin of the sprayed layer (mainly refined 32), CBN, YT30, YW2, YTl5, YT14, YG3X, 813 , No. 643,1, Sichuan 6, T20,600 and other different blade materials in the lathe for cutting experiments to ensure the dimensional accuracy of the workpiece and surface finish and other technical requirements, to explore the spray, spray layer of fine