对于低碳钢材质的零件,如不采用锻造或其他热处理方法改善其切削性能,一般切削刀具加工得到较高的表而光洁度是比较困难的,被加工表面常呈淡灰色,毫无光泽,有明显的撕裂痕迹和刀痕。为此,采用修磨刀尖形状的办法,能稳定地控制被加工表面光洁度在6以上。球形刀尖如图1、图2所示。在主后面与副后面相交的棱角处,沿整个棱缘用砂轮倒0.2～0.3棱角,然后用油石在刀尖处按图2所示,将刀尖 For low-carbon steel parts, such as the use of forging or other heat treatment to improve its cutting performance, the general cutting tool to get a higher table and finish is more difficult to be machined surface often pale gray, dull, there are Obvious tear marks and knife marks. To this end, the use of Sharpener tip shape approach to a stable control of the finished surface finish of 6 or more. The spherical tip is shown in Figure 1 and Figure 2. In the main back and behind the intersection of the edges and corners, along the entire edge with a wheel down 0.2 ~ 0.3 edges, and then with Whetstone at the tip according to Figure 2, the tip