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为了进行大型零件的精加工,设计出了几种装陶瓷刀片的车刀,安装刀片时应使后角α=7°,前角γ=-7°。为了提高刀片安装的可靠性和刚性,采用了磨制的硬质合金垫片。下面介绍重型机床上用的几种刀具结构。增大刀杆截面的车刀(图1) 装在垫片6上的刀片5和断屑块4用螺栓3和压板2从上面压紧。推广这种车刀可以改变许多零件的制造工艺。例如图2所示的9X2或ЩX15СГ钢制衬套(HRC53～59)过去用ВК8硬质合金车刀
In order to finish the machining of large parts, several kinds of lathe tools with ceramic blades were designed. The blades should be installed with α = 7 ° and γ = -7 °. In order to improve the reliability and rigidity of the blade installation, using a polished carbide gasket. Here are several heavy duty machine tools used on the structure. Increase the arbor cross-section turning tool (Figure 1) mounted on the shim 6 blades 5 and the chip breaking block 4 with bolts 3 and platen 2 from above compression. The promotion of this turning tool can change many parts of the manufacturing process. For example, as shown in Figure 2 9X2 or Щ X15СГ steel bushings (HRC53 ~ 59) used in the past with ВК8 carbide turning tool