Каталог Iscar монолитные сверла 2022 - страница 22

SOLID CARBIDE DRILLS IC908 OAL SCD-ACP-CS (20xD)Solid Carbide Drills with LCF LSLU DCh8L5DCONMSh6 Coolant Holes for Automotive Crankshaft Applications, 140º PLDrilling Depth 20-22xD MQL Dimensions Designation DC LU LCF OAL DCONMS PL LS L5(1) SCD 050-103-060ACP-CS 5.00 103.0 118.0 156.00 6.00 0.910 38.0 40.00 • SCD 060-120-060ACP-CS 6.00 120.0 140.0 178.00 6.00 1.090 38.0 40.00 • • For user guide, see pages 175-184 (1) Up to 50% of this length may be used to regrind Recommended Drilling Procedure for Deep Hole Drilling (20XD) 1 1 Drill a pilot hole 1-2*D deep with a short drill. The pilot drill should be 0.03-0.05 mm larger than the long drill and its point angle should also be larger (over 140°). 2 2 Enter the pre-hole using low speed and feed, until it engages the material. 3 Increase cutting speed and feed to recommendedconditions – no pecking is required!3 4 After having reached the required depth, reduce speed by more than 50% while retracting from the hole. 4 Recommended Machining Conditions for Solid Carbide 20xD Drills Carbon Steel Alloy Steel Stainless Steel Cast Iron Ductile Cast Iron (30 HRc) (45 HRc) (GG25) (GG45) Drill Dia. (mm) V(m/min) f(mm/rev) V(m/min) f(mm/rev) V(m/min) f(mm/rev) V(m/min) f(mm/rev) V(m/min) f(mm/rev) 5 60-120 0.12-0.25 50-100 0.1-0.20 30-60 0.08-0.15 60-120 0.15-0.30 40-80 0.15-0.25 6 60-120 0.14-0.25 50-100 0.14-0.25 30-60 0.10-0.18 60-120 0.14-0.25 40-80 0.14-0.25 7-8 60-120 0.16-0.30 50-100 0.16-0.30 30-60 0.10-0.20 60-120 0.16-0.30 40-80 0.16-0.30 9-10 60-120 0.16-0.30 50-100 0.10-0.20 30-60 0.08-0.115 60-120 0.20-0.35 40-80 0.20-0.35 170 ISCAR