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螺旋齿类刀具沟槽成型方法国内外基本有三种:1、双角铣刀法:即用直线形成螺旋面。这一传统的加工方法是国外三十年代所采用的,五十年代传入我国,至目前国内绝大多数工厂仍在沿用。其缺点在于是用直线形成螺旋面,所以在被加工刀齿的尖部形成0.2～0.5毫米长的干涉平面(如图1),从而迫使加大工件外径留磨量而浪费了加工工时。而且,用这种方法所得到的法截面的刀齿前刃面近似于直线,不但不锋利,也不利于卷屑。2、成型铣刀法(如图2):这是国外普遍采用的铣刀截形,国内大部分人也认为是最
Helical tooth cutter groove forming method There are basically three kinds at home and abroad: 1, double milling cutter method: that is, the straight line to form a spiral surface. This traditional processing method is adopted by foreign countries in the 1930s and introduced to our country in the 1950s. At present, most factories in China are still in use. The disadvantage is that the helical surface is formed by a straight line. Therefore, an interference plane of 0.2-0.5 mm long is formed on the tip of the machined tooth (as shown in FIG. 1), thereby forcing the workpiece diameter to be increased and wasting machining time. Moreover, the front face of the tooth of the method section obtained by this method is similar to a straight line, which is not only not sharp but also detrimental to chip feeding. 2, Molding cutter method (Figure 2): This is commonly used abroad cutter truncation, most of the country that is also considered the most