Каталог Iscar вращающийся инструмент 2017 - страница 471

USER GUIDE GRADES for APPLICATIONS and MATERIALS ISO P ISO M ISO K ISO N ISO S ISO H 1 - 11 12 - 13 14 15 - 20 21 - 28 31 - 37 38 - 41 Stainless Steel Austenitic Stainless Steel & Duplex Hard Steel Material Ferritic & (Ferritic- High Temp. & Hardened groups Steel Martensitic Austenitic) Cast Iron Nonferrous Alloys Cast Iron Hard IC808 (908) IC808 (908) IC808 (908) IS8 ID5 IC808 (908) IB55 IC30N ID8 IC08 IB85 MILLING INSERTS IC4050 IC380 IC4100 (5100) IC380 IC5400 IC830 (928) DT7150 IC07 IC928 (830) IC808 (908) IC830 (928) IC830 (928) IC330 (328) IC810 (910) IC08 IC328 (330) MILLING Indexable IC330 (328) IC330 (328) IC28 IC28 IC28 Coolant Tough N N Y N Y Y N First choice Milling Calculations Vc [m/min] Cutting speed D [mm] Tool diameter N fz N [RPM] Spindle speed Vf [mm/min] Feed speed κ N n fz [mm/tooth] Feed per tooth Z Number of teeth ap b Vf hm fN [mm/rev] Feed per revolution Vf 3 D fz Q [cm /min] Metal removal rate ap [mm] Depth of cut b [mm] Width of cut Th [min] Machining time Lw [mm] Machining length Kc [N/mm 2 ] Specific cutting force Calculations Kc1(1) [N/mm 2 ] Specific cutting force π*D*N for 1 mm2 chip section Cutting speed Vc = [m/min] hm [mm] Average chip thickness 1000min mc(1) Chip thickness factor Vc*1000 Spindle speed N = k [degrees] Cutting edge angle π*D [rev/min] P [kW] Machining power Table speed V f = f z *Z*N [mm/min] h Machine efficiency Vn P = Pc + Pm Feed per tooth f z = N*Z [mm/tooth] P - Total Machining Power Pc - Net Power = Cutting Power Feed per revolution f N = fz*Z [mm/rev] Pm - Motor Power (while not cutting) a p *b*V f 3 Metal removal rate Q = [cm /min] 1000 L w Machining time Th = [min] V f Specific cutting force Values for Motor Power PM K c = K c1 *h m -mc Max. Machine Power (kW) Motor Power Pm (kW) Average chip thickness in b h m ≈f z * [mm] 5.5 0.4 shoulder milling for b/D≤0.1 D √ 7.5 0.4-0.6 11.0 1.0 Average chip thickness in ( sink 180 hm = * * b * f z ) [mm] 15.0 1.5 shoulder milling for b/D>0.1 π * D * arcsin ( b/D) 18.0 2.2 ( a p f 22.0 2.5 * b * V * k c ) Machining power P = 7 [kW] 6 Motor Power Pm has a value of approximately * 10 * h (1) See page 1006 7 to 12% of Maximum Machine Power 467 467