在Hertel公司(联邦德国)G83·32型机床上,可实现曲轴直线拉削加工。加工时工件转动,拉刀直线运动,拉刀进给方向垂直于工件旋转轴线。拉削与铣削有很大不同,前者可显著减少加工时间,表面质量不低于磨削后的表面质量。拉刀体由优质热处理调质钢制成,切削部分采用正方形、菱形、三角形和圆形可换多棱刀片(按ISO标准)。刀片材料为带镀层或不带镀层硬质合金或陶瓷,刀片牢固地 Crankshaft linear broaching on Hertel (Federal Republic of Germany) G83 · 32 machine tools. Workpiece rotation, broaching linear motion, broach feed direction perpendicular to the axis of rotation of the workpiece. Broaching and milling are very different, the former can significantly reduce the processing time, the surface quality of not less than the surface quality after grinding. Broach body made of high-quality heat-treated quenched and tempered steel, cutting part of the square, diamond, triangle and circular for multi-blade (according to ISO standards). Blades are either coated or uncoated cemented carbide or ceramic, with the blades firmly