一决定鑽頭銑刀截面形狀的幾個因素鑽頭銑刀截面形狀的主要要求,就是要能铣出一定寬度和深度的螺旋形的槽,其形狀将使鑽頭按照一定的頂角2φ(圖一)磨出来的刀口(Cuttingdege)是一條直線。要符合這個要求,銑刀截面就需要有一定的形狀。决定這種形狀的因素有:—— (1) 鑽頭心子(Web)的直徑d(圖一) (2) 槽的寬度 (3) 頂角2φ A few factors that determine the cross-sectional shape of a drill cutter Drill cutter cross-sectional shape of the main requirements is to be able to mill a certain width and depth of the spiral groove, the shape of the drill bit will be in accordance with a certain angle 2φ (Figure 1) The grinding edge (Cuttingdege) is a straight line. To meet this requirement, cutter cross section need to have a certain shape. The factors that determine this shape are: - (1) diameter d of the web (Figure 1) (2) groove width (3) apex angle 2φ