Frästechnik · Milling Technology

412 Einsatzdaten-Berechnung · Work Data Calculation Effektiver Schneidendurchmesser d 1eff Effective cutting diameter d 1eff Innenkontur Internal contour Außenkontur External contour R th ø d 1 b r a p ø d 1 ø d 1eff R th = d 1 – d 1 2 – b r 2 2 4 v fM = v f x (D – d 1 ) [mm/min] D v fM = v f x (D + d 1 ) [mm/min] D b r = 2 R th (d 1 – R th ) d 1eff = 2 a p (d 1 – a p ) d 1 = Schneidendurchmesser [mm] Cutting diameter R th = Rautiefe [mm] Surface roughness b r = Zeilensprung [mm] Line offset d 1 = Schneidendurchmesser [mm] Cutting diameter d 1eff = Effektiver Schneidendurchmesser [mm] Effective cutting diameter a p = Axiale Zustellung [mm] Axial depth of cut a e = Radiale Zustellung [mm] Radial depth of cut d 1 D d 1 D Drehzahl Speed/rpm Schnittgeschwindigkeit Cutting speed Vorschub pro Zahn Feed per tooth n = v c x 1000 [min -1 ] d 1 x π v c = d 1 x π x n [m/min] 1000 f z = v f [mm] Z (flutes) x n Vorschub pro Umdrehung Feed per revolution Vorschubgeschwindigkeit Feed speed Mittenspandicke Chip thickness f = f z x Z (flutes) [mm] v f = f z x Z (flutes) x n [mm/min] h m = f z x a e [mm] d 1