Page 139 - Demo

137GENERAL PURPOSE DRILLINGModular Exchangeable Drilling Heads Cutting ConditionsModudrill %u2013 Exchangeable Head MD-DFN %u2026 ISO Material ConditionTensile Strength Rm[N/mm2] Hardness HBMaterial No.Vc [m/min]Feed Vs. Drill Diameter33<%u00d8D<40 (mm)f [mm/rev]Pnon-alloy steel and cast steel, free cutting steel<0.25% C annealed 420 125 1 80-110-1400.30 0.40 0.50%u22650.25% C annealed 650 190 2 90-105-130<0.55% C quenched and tempered 850 250 3 80-100-120%u22650.55% C annealed 750 220 4 70-90-110quenched and tempered 1000 300 5 50-70-90low alloy and cast steel (less than 5% of alloying elements)annealed 600 200 6 80-100-1200.30 0.40 0.50quenched and tempered930 275 7 70-90-1101000 300 8 50-70-901200 350 9 40-55-70high alloyed steel, cast steel and tool steelannealed 680 200 10 50-70-90 0.25 0.30 0.35quenched and tempered 1100 325 11 40-60-80Kgray cast iron (GG) ferritic / pearlitic 180 15 90-125-1600.40 0.50 0.60pearlitic / martensitic 260 16 80-110-140nodular cast iron (GGG) ferritic 160 17 90-135-180pearlitic 250 18 80-110-140malleable cast ironferritic 130 19 90-125-160pearlitic 230 20 80-110-140*Reduce speed by 50% when using the MD-Extension*The MD-Extension is recommended for machining ISO K materials onlyModudrill %u2013 Exchangeable Head MD-DR-DH %u2026 ISO Material ConditionTensile Strength Rm[N/mm2] Hardness HBMaterial No.Vc[m/min]Feed Vs. Drill Diameter33<%u00d8D<40 (mm)f [mm/rev]Pnon-alloy steel and cast steel, free cutting steel<0.25% C annealed 420 125 1100-150 0.10-0.25 %u22650.25% C annealed 650 190 2<0.55% C quenched and tempered 850 250 3%u22650.55% C 80-150 0.15-0.30 annealed 750 220 4quenched and tempered 1000 300 5low alloy and cast steel (less than 5% of alloying elements)annealed 600 200 6quenched and tempered930 275 71000 300 8 70-120 0.15-0.301200 350 9high alloyed steel, cast steel and tool steelannealed 680 200 10 80-150 0.10-0.25quenched and tempered 1100 325 11 70-120 0.10-0.25Kgray cast iron (GG) ferritic / pearlitic 180 15 180-300 0.18-0.35 pearlitic / martensitic 260 16nodular cast iron (GGG) ferritic 160 17150-2500.15-0.30pearlitic 250 18malleable cast ironferritic 130 19 0.15-0.35pearlitic 230 20*Reduce speed by 50% when using the MD-Extension