Каталог Iscar сверла со сменной режущей частью 2022 - страница 124

INDEXABLE DRILLS ISO USER GUIDE Machining Data for DR Drills Tensile Strength Hardness Group Material Condition [N/mm2] HB No.(1) < 0.25 %C Annealed 420 125 1 ≥ 0.25 %C Annealed 650 190 2 Non-alloy steel and caststeel, free cutting steel< 0.55 %C Quenched and tempered 850 250 3 Annealed 750 220 4 ≥ 0.55 %C Quenched and tempered 1000 300 5 Annealed 600 200 6 P 930 275 7 Low alloy and cast steel (less than 5% of alloying elements) Quenched and tempered 1000 300 8 1200 350 9 Annealed 680 200 10 High alloyed steel, cast steel and tool steel Quenched and tempered 1100 325 11 Ferritic/martensitic 680 200 12 Stainless steel and cast steel Martensitic 820 240 13 M Stainless steel and cast steel Austenitic, duplex 600 180 14 Ferritic / pearlitic 180 15 Gray cast iron (GG) Pearlitic / martensitic 260 16 Ferritic 160 17 K Nodular cast iron (GGG) Pearlitic 250 18 Ferritic 130 19 Malleable cast iron Pearlitic 230 20 Not hardenable 60 21 Aluminum-wrought alloys Hardenable 100 22 ≤12% Si Not hardenable 75 23 Aluminum-cast alloys Hardenable 90 24 >12% Si High temperature 130 25 N >1% Pb Free cutting 110 26 Copper alloys Brass 90 27 Electrolytic copper 100 28 Duroplastics, fiber plastics 29 Non metallic Hard rubber 30 Annealed 200 31 Fe based Hardened 280 32 High temperature alloys Annealed 250 33 S Ni or Co based Hardened 350 34 Cast 320 35 Pure 400 36 Titanium alloys Alpha+beta alloys, hardened 1050 37 Hardened 55 HRC 38 Hardened steel Hardened 60 HRC 39 H Chilled cast iron Cast 400 40 Cast iron Hardened 55 HRC 41 • This table refers to 2/3xD drill ratio usage. For 4xD ratio decrease cutting data by 15% • Chipformer should be selected based on our geometry range recommendations • When using external coolant supply only, reduce cutting speed by 10% • Use internal coolant supply when machining austenitic stainless steel (1) For workpiece materials list, see pages 495-524 122 ISCAR