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镶齿端铣刀的所有角度,都是刀刃上某一基本观测点相对于x y z 座标所形成的数值。座标轴x 垂直于铣刀轴,并与z 轴共同构成垂直于铣刀轴的一个平面。y 轴则与铣刀轴平行。先用按切削条件选定的铣刀工作角度γφ,α_(nφ)和φ_φ角等来确定切削刃上某一观测点相对于x、y、z 轴在纵平面y o z 和横平面x o z 上形成的纵向、横向前后角,可用下列公式计算:tgγφ′=tgγ_φsin(?)_φ+tgλ_(φcos(?)φ) ①tgγφ″=tgγ_(φcos(?)φ)-tgλ_(φsin(?)φ) ②ctgα_(nφ)′=ctgα_(nφ)sin(?)_φ+tgλ_(φcos)φ_φ③
All angles of the end mill are the values formed by one of the basic observation points relative to the x y z coordinates of the edge. The axis x is perpendicular to the milling cutter axis and, together with the z-axis, forms a plane perpendicular to the cutter axis. The y-axis is parallel to the milling cutter axis. Firstly, the cutter angles φφ, α_ (nφ) and φ_φ selected by the cutting conditions are used to determine the position of a certain observation point on the cutting edge with respect to the x, y, z axes in the longitudinal and transverse planes xoz The vertical and horizontal front and back angles can be calculated by the following formula: tgγφ ’= tgγφφsin (?) _φ + tgλ_ (φcos (?) Φ)? Tg? Y? = Tg ?? -? Cos ??? nφ) ’= ctgα_ (nφ) sin (?) _φ + tgλ_ (φcos) φ_φ③