Turning Grades Properties of Uncoated Carbide Workpiece Grade Hardness (HRA) TRS (kgf/mm2) Young’s modulus (103kgf/mm2) Thermal expansion coefficient 0-6/

Turning Grades Properties of Uncoated Carbide Workpiece Grade Hardness (HRA) TRS (kgf/mm2) Young’s modulus (103kgf/mm2) Thermal expansion coefficient 0-6/ 0C) Thermal conductivity (cal/cm sec0C) P ST05E 92.7 140 - ST10P 92.1 175 48 6.2 25 ST20E 91.9 200 56 5.2 45 A30 91.3 230 53 5.2 - M U10E 92.4 170 47 - U2 91.1 210 88 A30 91.3 230 53 5.2 - A40 89.2 270 - K H2 93.2 185 61 4.4 105 H01 92.9 210 66 4.7 109 G10E 90.9 250 63 - 105 S H01 92.9 210 66 4.7 109 H05 91.8 250 - 1KPa = 102kgf/m2, 1w/mk = 2.39x10-3cal/cm-sec'°c Cutting performance (H01 / H05) Titanium alloy (Ti-6Al-4V) Cutting condition vc(m/min) = 100 fn(mm/rev) = 0.1 ap(mm) = 0.5 wet i Test result i Designation insert cnmgi20408-vpi(H01) HOLDER PCLNR2525-M12 H01(VP1) H01(VP3) Competitor S Titanium alloy (Ti-6Al-4V) Cutting condition vc(m/min) = 80 fn(mm/rev) = 0.2 ap(mm) = 2.0 wet i Test result i Designation insert cnmg120408-vp3(H05) HOLDER PCLNR2525-M12 H05 Competitor A Competitor B Titanium alloy (Ti-6Al-4V) S litanium alloy (Ti-6Al-4V) Workpiece Cutting condition Designation Test result Part of an industrial machine vc(m/min) = 60 fn(mm/rev) = 0.2 ap(mm) = 0.8 wet INSERT CNMG120408-VP2(H01) HOLDER PCLNL2525-M12 H01 Competitor Grades & Chip Breakers Workpiece Part of an industrial machine Cutting vc(m/min) = 50 condition fn(mm/rev) = 0.15 ap(mm) = 2.0 wet i Designation insert cnmg120408-vp3(H05) HOLDER PCLNL2525-M12 i Test result H05 Competitor 14 15 12 13 8