Каталог Iscar токарные пластины ISO 2022 - страница 118

ISOTURN INSERTS USER GUIDE Ceramic Cutting Tools IS80 CVD Coated Si3N4 High Speed Rough Turning on Grey Cast Iron • Multi-layered coating on IS8 matrix • Roughing and interrupted cutting of cast iron * Coolant is not recommended for interrupted cutting IS9 Si3N4 Turning Nickel Based Alloys • Very tough Si3N4 ceramic grade with high cutting edge stability • Machining on nickel based high temprature alloys, in roughing to finishing applications • Honing is the standard edge preparation IW7 AL2O3+Sic Whiskers Main Advantages Cutting Speed (m/min) • High hardness (HV 2,100) • High fracture toughness due to SiC (silicon carbide) whisker - reinforced ceramics 450 • Excellent thermal shock resistance, which enables using coolant and interrupted cut machining • Excellent for roughing and semi-finishing operations at 8-10 IW7 times faster cutting speeds when compared with carbide grades • Good oxidation resistance due to its alumina substrate IS9 150 30 IC20 0.1 0.15 0.30 Feed (mm/rev) 238 ISCAR