我们过去在加工轴承档时,一直是用钻头钻孔,然后再用车刀车成。这种加工方法不仅生产效率低,而且浪费材料。针对这个缺点,车工赵立彬在学习苏联先进经验的基础上,改进了一把库佐夫金式的单刃套料刀。套料刀的几何形状如附图所示:前角γ=12°,主后角α=6°,付后 In the past, we used to drill the hole when machining the bearing files, and then use the turning tool to make it. This method of processing not only low production efficiency, but also a waste of materials. In response to this shortcoming, builders Zhaoli Bin improved on the basis of learning advanced Soviet experience and improved a Kuzov gold single-bladed knife. Tapping knife geometry as shown in the figure: rake angle γ = 12 °, the main relief angle α = 6 °, pay