Основной каталог Kyocera 2016-2017 - страница 952

Basic Formulas  Turning  Cutting Speed n Vc= π× Dm×n IDm 1,000 Vc ：Cutting speed［m/min］ Dm：Workpiece Dia.［mm］ n ：Spindle Revolution［min-1］ L  Power Requirement Ks×Vc×ap×f Pc ：Power Requirement［kW］ Ks Figure (kgf/mm2) Pc = Low Carbon Steel 190 6,120 × η PHP ：Power Requirement (Horse Power)［HP］ Medium Carbon Steel 210 Vc ：Cutting speed［m/min］ High Carbon Steel 240 Ks×Vc×ap×f ap ：Depth of Cut［mm］ Low Alloy Steel 190 PHP= 4,500 × η f ：Feed Rate［mm/rev］ High Alloy Steel 245 KS ：Specific Cutting Force［kgf/mm2］ Cast Iron 93 Malleable Cast Iron 120 η ：Mechanical Efficiency（0.7~0.8） Bronze, Brass 70  Theoretical Surface Roughness f2 Rz(h：) Theoretical Surface Roughness［μm］ Rz(h)= 8×R(rH) × 1,000 f ：Feed Rate［mm/rev］ R(rH) Rz(h) R(rH)：Corner Radius of Insert［mm］ f  Chip Removal Volume Q ：Chip Removal Volume［cm3/min=cc/min］ Q=Vc×ap×f Vc ：Cutting speed［m/min］ ap ：Depth of Cut［mm］ f ：Feed Rate［mm/rev］ R  Edge Position Compensation cos( D + (E-90°) ) E Z D { X= (R-R')× 2 -1 Vc= π×Dm×n D R(rH) sin 2 { Information sin ( D + (E-90°) ) Technical { Z= (R-R')× 2 -1 X sin D { 2 R'(rH') ⊿ X : X-axis Direction Edge Position Compensation［mm］ Toolholder Type Insert Corner Angle α Cutting Edge Angle β X Z ⊿ Z : Z-axis Direction Edge Position Compensation［mm］ DCLN/PCLN 80° 95° 0.100×(R-R’) 0.100×(R-R’) DTGN/PTGN 60° 91° 0.714×(R-R’) 0.030×(R-R’) R : Corner-R before Change［mm］ DDJN/PDJN 55° 93° 0.866×(R-R’) 0.099×(R-R’) R' : Corner-R after Change［mm］ DDHN/PDHN 55° 107.5° 0.531×(R-R’) 0.531×(R-R’) DVLN/PVLN 35° 95° 2.072×(R-R’) 0.273×(R-R’) D : Insert Corner Angle［°］ DVPN/PVPN 35° 117.5° 1.351×(R-R’) 1.351×(R-R’) E : Toolholder's Cutting Edge Angle［°］ DSBN/PSBN 90° 75° 0.225×(R-R’) -0.293×(R-R’) Example: Compensation when changing corner-R from 0.8 to 0.4, using PCLN type toolholder, X=0.100×(0.8-0.4)=0.04(mm) Z=0.100×(0.8-0.4)=0.04(mm) R32