単結晶ダイヤモンドバイトの切削性能に及ぼす結晶方位の影響

通过用不同晶向的金刚石刀具切削铜、黄铜和铝合金的实验，观察了切削力和刀具与切屑之间的摩擦对切削力的影响，得出了以下结论：1.采用不同晶向的金刚石刀具切削铜、黄铜和铝合金。显然，墨卡托方法在表示单晶金刚石工具的刀面(前刀面、后刀面)和刀刃的反向方向(几乎等于芯片的流出方向)等晶体取向方面优于立体方法。切削力受晶体取向的影响，晶体取向变大，前刀面按{100}、{111}和{100}面的顺序排列。切削力可以通过使边缘反向指向摩擦系数减小的方向来减小，即使它是相同的前刀面。前刀面与切屑之间的摩擦系数随实际进给量的减小而增大。增加的程度取决于侧翼的晶体取向。这是因为后刀面的摩擦系数超过了前刀面的摩擦系数，增加的速度取决于后刀面的晶体取向。

By experiments in cutting copper, brass, and Al alloy with diamond tools having various kinds of crystallographic orientation, to observe the effects of cutting force, and friction between tool and chip, the following conclusions are obtained.1. It is apparent that the Mercator method is superior to the Stereo method for representing crystallographic orientations such as the tool face (rake face, flank) of a single-crystal diamond tool, and the edge inverse direction (nearly equal to a chip's flowing out direction).2. A cutting force is subject to crystallographic orientations which become large with rake faces in the order of {100}, {111}, and {100} plane.3. A cutting force may be reduced by making an edge inverse direction pointed in a coefficient of friction decreasing direction, even if it is the same rake face.4. The coefficient of friction between rake face and chips increases as the actual depth of cut decreases by reducing feed. The extent of the increase depends on the crystallographic orientation at the flank. This is because the flank's coefficient of friction overtakes that of the rake face, the rate of increase depends on the crystallographic orientation of the flank.