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如图所示,立铣刀a至少有二个刀齿b和c,在这二个刀齿上不仅其圆柱刃半径大小不同,而且其端刃的轴向尺寸也互不相同。刀齿b
As shown in the figure, the end mill a has at least two teeth b and c, and on both teeth not only the cylindrical edge radii are different in size, but also their axial widths of the end edges are different from each other. Knife teeth b