Общий каталог Mitsubishi 2020 - 2021 - страница 1448

CALCULATING ACTUAL CUTTING SPEED

1. Effective cutting diameter = 2 ap (DC-ap) DC DC : Tool diameter (inch) ap : Depth of Cut (inch) 2. Using ap Calculate cutting speed at the depth of cut line. ap(DC-ap) vc = vc : Actual cutting speed (SFM) n : Revolution (min ) EffectiveEffective -1 cutting diametercutting diameter

SELECTING PICK FEED

Theoretical h : Cusp height

h = Pf : Pick feed

PRFRAD : Ball nose or corner radius Actual surface roughness Rz will be about 3 times worse than theoretical h. This is because of the effect of a built-up edge. To determine Pf, use the formula below based on a particular Rz value.

8xPRFRADxRz Pf = Pf

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