390 Каталог KORLOY 2020 Инструмент и оснастка для станков по металлу Стр.D6

Каталог KORLOY 2020 Инструмент для станков по металлу Стр. D6 0390 Lab2u

D Technical Information for Threading O Recommended cutting speed as per workpiece (vc) Workpiece Hardness brinell vc (m/min) (HB) PC3030T PC9070 PC5300 Low carbon (C=0.1-0.25 %) 125 115 190 110 190 Carbon steel Medium carbon (C=0.25-0.55 %) 150 100 175 100 165 High carbon (C=0.55-0.85 %) 170 90 155 90 155 Low alloy steel (alloying elements s 5%) Non-hardened 180 100 180 100 180 P Hardened 275 75 140 75 140 Hardened 350 70 135 70 135 High alloy steel Annealed 200 80 120 80 120 (alloying elements > 5%) Hardened 325 50 100 50 100 Cast steel Low alloy (alloying elements 5%) 200 70 130 70 130 High alloy (alloying elements >5%) 225 60 120 60 120 Stainless steel ferritic Non-hardened 200 70 130 70 150 70 130 Hardened 330 50 95 60 125 50 95 Stainless steel austenitic Austenitic 180 80 120 90 160 80 120 Super austenitic 200 30 100 40 120 30 100 Stainless steel cast Non-hardened 200 90 120 90 150 90 120 ferritic Hardened 330 0 7 5 6 65 120 0 1 5 6 M Stainless steel cast Austenitic 200 85 110 85 120 85 110 austenitic Hardened 330 60 100 60 110 60 100 Annealed (Iron based) 200 45 60 45 60 High temperature alloy Aged (Iron based) 280 30 50 30 50 Annealed (Nickel or Cobalt based) 250 20 30 20 30 Aged (Nickel or Cobalt based) 350 15 25 15 25 Titanium alloy 99.5% pure Titanium 400Rm 140 170 140 170 Titanium alloy 1050Rm 50 70 50 70 Extra hard steel Hardened & tempered 55HRC 45 60 45 60 Malleable cast iron Ferritic (short chips) 130 70 120 70 120 Pearlitic (long chips) 230 70 120 70 120 Gray cast iron Low tensile strength 180 70 130 70 130 High tensile strength 260 60 100 60 100 Nodular SG iron Ferritic 160 125 160 125 160 K Pearlitic 260 90 120 90 120 Aluminum alloy wrought Non-aging 60 100 250 100 250 Aged 100 80 180 80 180 Cast 75 200 400 200 400 Aluminum alloy Cast & aged 90 200 280 200 280 Cast Si 13-22% 130 60 150 60 180 Copper and Brass 90 80 120 80 210 copper alloy Bronze and non-leaded copper 100 80 120 80 210 O Calculation of n RPM vcx1000 n xDxn n = - vc = - n x D 1000 O Number of passes Pitch mm 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 8.00 tPi 48 32 24 20 16 14 12 10 8 7 6 5.5 5 4.5 4 3 No. of passes 4 6 4 7 4 8 5 9 10 6 7 12 7 12 14 8 16 9 8 1 10 11 18 11 19 12 20 12 20 12 20 15 24 x One cutting depth is calculated by total cutting depth divided into machining times ex) ER16-1.5ISO, hmin 0.92: If 10 times machining, one cutting depth is 0.092 (0.92/10) Threading 6 n: Revolution Per Minute min-1 vc: Cutting Speed m/min D: Workpiece Diameter mm