Thread Milling Recommended cutting condition Korloy Table Hardness Brinell HB vc(m/min) Feed fz(mm/t) Workpiece Grade Indexable Solid PC9570T PC9070M Inser

Thread Milling Recommended cutting condition Korloy Table Hardness Brinell HB vc(m/min) Feed fz(mm/t) Workpiece Grade Indexable Solid PC9570T PC9070M Inser

Thread Milling Recommended cutting condition Korloy Table Hardness Brinell HB vc(m/min) Feed fz(mm/t) Workpiece Grade Indexable Solid PC9570T PC9070M Insert Endmill Low carbon(C+0.1-0.25%) 125 100 210 80 250 0.05 0.3 0.03 0.15 Unalloyed steel Medium carbon(C=0.25-0.55%) 150 100 180 80 230 0.05 0.25 0.03 0.1 High carbon (C=0.55-0.85%) 170 100 170 80 200 0.05 0.2 0.03 0.08 Low alloy steel (alloying elements<5%) Non hardened 180 90 160 60 180 0.05 0.25 0.03 0.1 P Hardened 275 80 150 60 170 0.05 0.2 0.03 0.07 Hardened 350 70 140 60 160 0.05 0.15 0.01 0.03 High alloy steel Annealed 200 60 130 40 100 0.05 0.2 0.03 0.05 Hardened 325 70 110 30 80 0.05 0.1 0.01 0.03 Cast steel Low alloy (alloying elements<5%) 200 100 170 80 250 0.05 0.15 0.03 0.1 High alloy(alloying elements>5%) 225 70 120 60 170 0.05 0.1 0.01 0.03 Stainless steel Feritic Non hardened 200 100 170 60 150 0.05 0.15 0.04 0.1 Hardened 330 100 170 60 120 0.05 0.1 0.01 0.05 Stainless steel Austentic 180 70 140 60 140 0.05 0.15 0.04 0.1 Austenitic Super austenitic 200 70 140 60 130 0.05 0.1 0.04 0.1 Stainless steel Non hardened 200 70 140 60 160 0.05 0.15 0.04 0.1 Cast feritic Hardened 330 70 140 60 110 0.05 0.1 0.03 0.05 M Stainless steel Austenitic 200 70 120 60 150 0.05 0.15 0.04 0.1 Cast austenitic Hardened 330 70 120 60 100 0.05 0.1 0.03 0.05 Annealed (Iron based) 200 20 45 30 60 0.05 0.1 0.04 0.1 High eimperature alloys Aged (Iron based) 280 20 30 20 50 0.02 0.05 0.01 0.03 Annealed(Nickel or Cobalt based) 250 15 20 15 35 0.02 0.05 0.01 0.03 Aged (Nickel or Cobalt based) 350 10 15 15 30 0.02 0.05 0.01 0.03 Titanium alloys Pure 99.5 Ti 400Rm 70 140 40 80 0.02 0.05 0.03 0.05 + alloys 1050Rm 20 50 20 50 0.02 0.05 0.03 0.05 Extra hard steel Hardened & tempered 55HrC 20 45 15 45 0.01 0.03 0.005 0.01 Malleable Ferritic (short chips) 130 60 130 70 160 0.02 0.08 0.01 0.03 cast iron Pearlitic (long chips) 230 60 120 60 150 0.02 0.05 0.03 0.05 Grey cast iron Low tensile strength 180 60 130 70 160 0.05 0.15 0.05 0.1 High tensile strength 260 60 100 40 120 0.05 0.1 0.03 0.05 Nodular SG iron Feritic 160 60 125 40 110 0.05 0.15 0.05 0.1 K Pearlitic 260 50 90 40 100 0.05 0.1 0.03 0.05 Aluminum alloys Non aging 60 100 250 200 300 0.1 0.4 0.1 0.25 Wrought Aged 100 100 180 150 250 0.1 0.3 0.1 0.2 Cast 75 150 400 100 200 0.1 0.3 0.1 0.2 Aluminum alloys Cast & aged 90 150 280 120 220 0.05 0.25 0.1 0.15 Cast Si 13-22% 130 80 150 200 300 0.1 0.3 0.1 0.2 Copper and Brass 90 120 210 200 300 0.1 0.3 0.1 0.25 copper alloys Bronze and mom leaded copper 100 120 210 150 250 0.05 0.25 0.1 0.2 Recommendation At tool entry, set the Feed f mm/tooth to 70% lower than the threading Feed Example Threading Feed: 0.3 mm/t Tool entry Feed: 0.09 mm/t J- Threading 43 Technical Information for