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在上期曾介绍了切割过程特点及其存在的问题。同时也对机夹切断刀的要求做了叙述,现在接着谈这个问题。2.前刀面形状与前角。(1)刀刃形状种类很多,如(图5)所示,有直线型、圆弧型、内圆弧型、搓板型、人字型、三刃四尖型、五刃六尖型、屋脊型以及凸型和断屑型等。以上这些刀刃形状各有特点,都是金切师傅根据加工、工件外形、材质和机床等情况,经过实践总结出来的。(图5-1)刀型,使用普遍、刃磨方
In the last period has introduced the cutting process characteristics and problems. At the same time also made a description of the machine clip cutting knife requirements, and now talk about this issue. 2 rake face shape and rake angle. (1) There are many types of cutting edges, as shown in Figure 5, there are linear, circular, inner circular, washboard, chevron, As well as convex and chip-breaking type. Each of these knife edge shape has its own characteristics, are master gold cut according to the processing, workpiece shape, material and machine tools, etc., concluded through practice. (Figure 5-1) Knife type, the use of universal, grinding side