Каталог Iscar расточные системы 2022 - страница 95

USER GUIDE ITS BORE Cutting Conditions for Boring Operations with BHC Combi Rough and Fine Cutting Feed fn=mm/rev Cutting Depth mm Boring Depth to Working Speed Roughing ISO Material Diameter Ratio Conditions Vc=m/min RE=0.2 RE=0.4 Carbide Grade Finishing Ø28-Ø46 Ø46-Ø75 Ø75-Ø160 LDRED/BDRED = 2.5 good 160-250 0.1-0.2 0.1-0.2 Carbon Steel LDRED/BDRED = 4 normal 120-180 0.1-0.2 0.1-0.2 IC807, IC908, 0.15-0.3 1.5 2 2.5 HB < 200 LDRED/BDRED = 6.3 difficult 70-100 *0.1-0.15 0.1-0.2 IC520N, IC20N, P LDRED/BDRED = 2.5 good 140-200 0.1-0.2 0.1-0.2 IC30N, IC8150, Carbon Steel LDRED/BDRED = 4 normal 100-160 0.1-0.2 0.1-0.2 IC8250, IC3028 0.15-0.3 1.5 2 2.5 HB > 200 LDRED/BDRED = 6.3 difficult 70-100 *0.1-0.15 0.1-0.2 Stainless LDRED/BDRED = 2.5 good 100-140 0.1-0.2 0.1 -0.2 IC807, IC30N, M Steel AISI LDRED/BDRED = 4 normal 80-110 0.1-0.2 0.1 -0.2 0.15-0.3 1.5 2 2.5 IC3028 304-316 LDRED/BDRED = 6.3 difficult 60-90 *0.1-0.15 0.1-0.2 LDRED/BDRED = 2.5 good 120-160 0.1-0.2 0.1 -0.2 IB55, IC908, K Cast Iron LDRED/BDRED = 4 normal 90-120 0.1-0.2 0.1 -0.2 0.15-0.3 2 2.5 3 IC5005, IC428 LDRED/BDRED = 6.3 difficult 60-90 *0.1-0.15 0.1-0.2 LDRED/BDRED = 2.5 good 250-350 0.1-0.2 0.1-0.2 N Aluminum LDRED/BDRED = 4 normal 160-250 0.1-0.2 0.1-0.2 ID5, IC20 0.15-0.3 2 2.5 3 LDRED/BDRED = 6.3 difficult 100-150 *0.1-0.15 0.1-0.2 * Only for finishing Inserts. ** Use inserts with the same corner radii for both roughing and finishing inserts Vc Cutting speed (m/min) D Diameter of workpiece (mm) n Number of revolutions / min' (rev./min) Vf Feed rate (mm/min.) fn Feed / rev/ (mm/rev) ∏ 3.14 ∏·D·n Vc= 1000 LDRED BDRED Vc 1000 0 n= LDRED .0015 .0005 .001 ∏·D BDRED Vf= n·fn 0.2 ap roughing ap finishing In case of a single or a stepped boring cutter configuration, only half the feed should be applied. Cutting Conditions for BHD / BHF / BHE Fine Boring Heads ap 0.1-0.25 Feed f=mm/rev Cutting Speed Insert Radius ISO Material LDRED/BDRED Stability Vc=m/min RE=0.2 RE=0.4 Insert Grade LDRED/BDRED=2.5 good 200-300 0.05-0.08 0.08-0.10 IC20N Carbon Steel LDRED/BDRED=4 normal 160-250 0.05-0.08 0.08-0.10 IC30N HB<200 LDRED/BDRED=6.3 difficult 70-100 0.05-0.08 - IC54 P LDRED/BDRED=2.5 good 160-250 0.05-0.08 0.08-0.10 IC20N Carbon Steel LDRED/BDRED=4 normal 150-200 0.05-0.08 0.08-0.10 IC30N HB<200 LDRED/BDRED=6.3 difficult 70-100 0.05-0.08 - LDRED/BDRED=2.5 good 120-160 0.05-0.08 0.08-0.10 IC54 Stainless Steel M LDRED/BDRED=4 normal 100-140 0.05-0.08 0.08-0.10 AISI 304-316 LDRED/BDRED=6.3 difficult 70-100 0.05-0.08 - LDRED/BDRED=2.5 good 120-160 0.05-0.08 0.08-0.10 IC20 K Cast Iron LDRED/BDRED=4 normal 100-140 0.05-0.08 0.08-0.10 LDRED/BDRED=6.3 difficult 70-100 0.05-0.08 - LDRED/BDRED=2.5 good 300-400 0.05-0.08 0.08-0.10 IC20 N Aluminum LDRED/BDRED=4 normal 250-350 0.05-0.08 0.08-0.10 LDRED/BDRED=6.3 difficult 100-150 0.05-0.08 - (1) a =0.1 p min 477