Question

英语好的帮下忙，翻译下

A number of high volume industrial parts are comprised of circular and non-circular geometric features；such as automotive camshafts, piston heads, and Swiss-type automation machine-tool components. Traditionally, the non-circular geometric features in these parts have been manufac-tured by milling and subsequent grinding operations, resulting in high costs of tooling and long set-up times (since unique master grinders are required for each profile). With the increasing trend towards shorter product life cycles, radial contour turning (also known as the non-circular turning process — NCTP) has emerged as a successful alternative to the milling and grinding operations. In NCTP, a single point turning tool is rapidly actuated along the radial direction, synchronous with the workpiece rotation, so as to produce the desired non-circular profile

Answer 1

许多大批量的工业零件具有圆形的或者非圆形几何特征。比如，汽车凸轮轴，活塞头，瑞士型自动化机床部件。传统制造中，非圆形几何特征的零件是由手工铣削并加以磨削的，这就造成了高额的加工成本，生产周期也比较长（因为不同的主磨床需要不同的轮廓）。缩短产品的生命周期日益成为一种趋势，端面轮廓车削（也称非圆车削加工——简称NCTP）已经成功替代了人工铣削和车削。在端面轮廓车削中，单点车刀沿径向迅速启动，与加工件同步旋转，以便产生所期望的非圆形轮廓。