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意大利金属研究所,进行了关于刀刃旋转的刀具的实验与研究。这种刀具的特点是:在旋转刀刃相对于工件的位置关系适当与工件安装角正确时,可使刀刃一边切削,一边自动旋转。该角度可控制作用于刀刃的反作用力方向不通过刀盘的旋转中心,从而使之产生旋转力偶。另外,切屑流出的方向不是半径方向,这也起到了使刀盘绕其轴线旋转的作用。图1所示为用于车削的旋转刀具示意图,它清楚地表明上述旋转力偶与轴向安装角λ有密切的关系。另外,纵向安装角α可阻止溜板倒退与待加工表面之间的干涉。上述两种角度和前角γ,决定着这个具有
Italy Institute of Metal, conducted a knife on the knife rotation experiments and research. The characteristics of this type of cutter are that when the position of the rotary cutter relative to the workpiece is proper and the mounting angle of the workpiece is correct, the cutter blade can be cut while rotating automatically. This angle controls the direction of the reaction force acting on the blade not to pass through the center of rotation of the cutter disc so that a rotational force is generated. In addition, the direction of flow of the chips is not radial, which also serves to rotate the cutter about its axis. Figure 1 shows a schematic view of a turning tool for turning, which clearly shows that the above-mentioned rotational force is closely related to the axial mounting angle λ. In addition, the longitudinal mounting angle α prevents interference between the slide back and the surface to be machined. The above two angles and the rake angle γ determine this one