1554 Каталог MITSUBISHI 2015 Токарный и вращающийся инструмент Инструментальные решения Стр.N238

Каталог MITSUBISHI 2015 Металлорежущий инструмент Стр. N238 1554 ENG Lab2u

DRILLING DRILLING (INDEXABLE TYPE) CARBIDE TAW RECOMMENDED CUTTING CONDITIONS Work Material Drill Diameter 014.0 015.4 015.5-018.4 018.5-021.4 Conditions Hardness'' Cutting Speed (m/min) Feed (mm/rev) Cutting Speed (m/min) Feed (mm/rev) Cutting Speed (m/min) Feed (mm/rev) D Mild Steel 180HB 70(60-90) 0.20 (0.15-0.25) 80(60-100) 0.25 (0.20-0.30) 90(70-110) 0.25 (0.20-0.30) Carbon Steel 180 280HB 70 (60-90) 0.20 (0.15-0.25) 80(60-100) 0.25 (0.20-0.30) 80(60-100) 0.25 (0.20-0.30) Alloy Steel 280 350HB 60 (50-80) 0.15(0.12-0.18) 70 (50-90) 0.20 (0.15-0.25) 70 (50-90) 0.20(0.15-0.25) M Stainless Steel 5200HB 50 (40-60) 0.15(0.12-0.18) 50 (40-60) 0.15(0.12-0.18) 60 (50-70) 0.20(0.15-0.22) K Gray Cast Iron Tensile Strength 350MPa 70 (50-90) 0.20 (0.15-0.25) 100(60-120) 0.25 (0.20-0.30) 120(60-140) 0.25 (0.20-0.30) Ductile Cast Iron Tensile Strength 450MPa 70 (50-90) 0.20 (0.15-0.25) 80 (60-90) 0.25 (0.20-0.30) 80 (60-90) 0.25 (0.20-0.30) Work Material Drill Diameter 021.5-024.4 024.5-027.4 027.5-030.4 Conditions Hardness'' Cutting Speed (m/min) Feed (mm/rev) Cutting Speed (m/min) Feed (mm/rev) Cutting Speed (m/min) Feed (mm/rev) B Mild Steel 180HB 100(80-120) 0.30 (0.25-0.35) 110(80-120) 0.30 (0.25-0.35) 110(80-120) 0.30 (0.25-0.35) Carbon Steel 180 280HB 90(70-110) 0.30 (0.25-0.35) 100(80-120) 0.30 (0.25-0.35) 100(80-120) 0.30 (0.25-0.35) Alloy Steel 280 350HB 80(60-100) 0.25 (0.20-0.30) 90(70-110) 0.25 (0.20-0.30) 90 (70-110) 0.25 (0.20-0.30) M Stainless Steel 200HB 60 (50-70) 0.20 (0.15 -0.22) 70 (60-80) 0.25 (0.20-0.28) 70 (60-80) 0.25 (0.20-0.28) K Gray Cast Iron Tensile Strength 350MPa 130(80-150) 0.35 (0.25-0.40) 140(90-160) 0.35 (0.25-0.40) 140(90-160) 0.40 (0.30-0.45) Ductile Cast Iron Tensile Strength 450MPa 90(60-100) 0.30 (0.25-0.35) 100(80-110) 0.30 (0.25-0.35) 100(80-110) 0.30 (0.25-0.35) (Note 1) When using the 8DC type holder reduce the cutting speed by approx. 20%. (Note 2) When using the 8DC type holder it is recommended to drill a pilot guide hole. (Note 3) H type honing is recommended when machining mild steel and stainless steel. HONE WIDTH If an insert with honing other than standard is needed please order using the symbols below. (Insert Order Number) TAW N H 1 4 T t t t TAW H:H Type Honing Symbol Product Name N General Use K For Cast Iron B For Bridges Insert Diameter Honing Type Honing Standard) Honing Type Hone Width (mm) F 0 G 0.02-0.05 H 0.05-0.10 -(Standard) 0.10-0.15 K 0.15-0.20 S 0.20-0.25 M 0.25-0.30 NOTES ON USE INSERT INSTALLATION Loosen the clamp screw to install the insert. Correctly mesh the insert and the holder serrations then slide the insert to the bottom of the slot. Fasten the clamp screw using the torque wrench provided while holding the insert lightly as shown. (Figure 1) Check there is no gap between the bottom of the insert and holder. (Figure 2) Tighten the clamp screw according to the torque below. Drill Diameter (mm) Clamp Torque (N m) 14-15 2.0 16-18 2.0 19-21 3.5 22-24 5.5 25-27 8.5 28-30 12.0 INSERT REPLACEMENT iThouroughly clean the serrations of the holder before installing a new insert. Remove heavy dirt in the holder serrations by using the cleaning plate provided. N238