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由球面的几何特点可知，加工球面时，只要使铣刀盘旋转时刀尖运动的轨迹与球面的截形圆重合，然后再配合工件围绕其本身轴线的旋转运动，就可以将球面铣出。如图1所示。式中：α－刀盘或工件倾角（°）；db－圆球柄部直径（mm）；Rq－圆球半径（mm）；dc－铣刀盘刀尖直径?..
From the geometric characteristics of the spherical surface, we can see that when the spherical surface is machined, the spherical surface can be milled by simply turning the path of the tool nose coinciding with the truncated circle of the spherical surface while rotating the workpiece around its own axis. As shown in Figure 1. Where: α-cutter or workpiece inclination (°); db-ball handle diameter (mm); Rq-ball radius (mm); dc-milling cutter tip diameter?