胶辊的材料是橡胶,硬度低,弹性大,韧性好,切削性能不良。如果采用一般的金属切削刀具加工,由于刀具楔角较大(60°～90°),而橡胶的粘着力很大,因此切屑是啃剥下来的,加工表面质量很差,工件产生很大变形,切削功率大部分消耗在刀具与工件间的摩擦上,即使是硬质合金刀具也会很快磨损。对于螺距较小的(如每对24牙)螺纹加工,困难就更大,几乎难于成形。 Rubber roller material is rubber, low hardness, flexibility, good toughness, poor cutting performance. If the general metal cutting tool machining, because the tool wedge angle is larger (60 ° ~ 90 °), and the rubber adhesion is very large, so the chip is chewing off, the machining surface quality is poor, the workpiece has a great deformation , Cutting power is mostly consumed in the friction between the tool and the workpiece, even hard alloy tool will wear quickly. For threads with small pitch (eg, 24 teeth per pair), machining is more difficult and almost formless.