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在卧式成立式铣床上用三面刃铣刀铣削矩形花键轴时,当三面刃铣刀侧刀刃和花键键侧线重合并略微接触后(见附图),上刀深度可按下式计算:
When milling a rectangular spline shaft with a three-face milling cutter on a horizontal milling machine, when the side cutter and the spline key are coincident and slightly contacted (see the attached drawings), the depth of the upper cutter can be calculated as follows :