从前,在哈尔科夫拖拉机厂(XT3)里是以两道工序来加工如图1所示形状的花键轴。 (一)在花键铣床上铣带有退刀槽的花键(退刀槽的作用是当在磨削花键的两侧面时,防止砂轮在尖角处很快的磨损)。 (二)在磨床上倒角0.6～1.0公厘(倒角的目的是防止当一对花键结合工作时可能发生的卡住现 Once upon a time, a spline shaft of the shape shown in Figure 1 was machined in two processes at the Kharkov Tractor Factory (XT3). (A) Spline milled spline with undercut (spline recess is used to prevent the sharp wear of the grinding wheel at sharp corners when grinding both sides of the spline). (B) Chamfer on the grinder 0.6-1.0 mm (chamfering is to prevent the jamming that may occur when a pair of spline work together