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镍基102粉末,用氧-乙炔火焰喷焊在工件表面上,目的是为了提高工件表面的硬度和耐磨、耐热以及耐蚀性能,从而延长其使用寿命。镍基喷焊的新工艺,是当前提高产品质量的新途径。但是,镍基喷焊层的硬度高达HRC60左右,对切削加工带来很大的困难,它比车削硬度为HRC62的W18Cr4V高速钢还要困难。因此,对刀具材料、切削用量、刀具几何角度等都必须进行合理的选择。一、刀具材料选择在加工镍基102粉末喷焊层时,我们选用了798、零号、643M、6J、Y_(H1)-18、Y_(H1)、YC09等七种硬质合金刀片及琥珀色立方氮化硼刀片进行切削试验,发现在同样的切削条件、几何角度和切削用量的情况下,Y_(H1)-18、643M、及琥珀色立方氮化硼圆柱形刀片的
Nickel-based 102 powder, with oxygen - acetylene flame spray welding on the workpiece surface, the purpose is to improve the hardness of the workpiece surface and wear resistance, heat resistance and corrosion resistance, thereby extending its service life. New technology of nickel-based spray welding is a new way to improve product quality. However, the hardness of nickel-based spray coating up to about HRC60, cutting great difficulties, it is harder than turning W18Cr4V HRC62 high-speed steel. Therefore, the tool material, cutting, tool geometry, etc. must be a reasonable choice. First, the choice of tool materials In the processing of nickel-based 102 powder spray coating, we chose 798, zero, 643M, 6J, Y_ (H1) -18, Y_ (H1), YC09 and other seven carbide inserts and amber Cubic boron nitride blade cutting test and found that in the same cutting conditions, geometry and cutting conditions, Y_ (H1) -18,643M, and the amber cubic boron nitride cylindrical blade