Каталог Iscar дисковые фрезы и фрезерные пластины 2022 - страница 229

USER GUIDE MILLING INSERTS Cutting Recommendations for the HELIQUAD-12 Complete Line • The table below defines initial feed rates • For initial cutting speeds, refer to ISCAR’s recommendations for carbide grades Calculating cutting feed rate: ƒz=ƒz0×Kef×Ks where fz0 - Basic feed (Table 1), Kef - Engagement factor ( Table 2), Ks - Stability factor (Table 3) Table 1 - Basic feed, ƒz0, mm/tooth ƒz0 for Insrt SIze/Geometry Tensile SDMT SDMT SDMT SDMT SDMR QDMT QDCT Strength Hardness Material 1205… 1205PDR- 1205PDN- 1205PDR- 1205… 1205… 1205… ISO Material Condition [N/mm2] HB No. (1) PDR…-MM HQ-M RM-M HQ-HS HQ-M PDTN-M PDN/-F < 0.25 %C Annealed 420 125 1 Non-alloy steel >= 0.25 %C Annealed 650 190 2 and cast < 0.55 %C Quenched and 850 250 3 tempered 0.2 0.15 - 0.15 0.12 0.2 0.12 steel, free cutting >= 0.55 %C Annealed 750 220 4 steel Quenched and 1000 300 5 tempered P Low alloy steel Annealed 600 200 6 and cast steel 930 275 7 0.2 0.15 - 0.15 0.10 0.2 0.10 Quenched and (less than 5% of 1000 300 8 tempered alloying elements) 1200 350 9 Annealed 680 200 10 High alloyed steel, cast Quenched and steel, and tool steel 1100 325 11 - tempered 0.18 0.13 0.13 0.10 0.18 0.10 Ferritic/ Stainless steel 680 200 12 martensitic and cast steel Martensitic 820 240 13 Stainless steel M Austenitic 600 180 14 - - - - 0.10 - 0.10 and cast steel Ferritic/pearlitic 180 15 Grey cast iron (GG) Pearlitic 260 16 Cast iron nodular Ferritic 160 17 K Pearlitic 250 18 - 0.15 0.15 - - 0.2 - (GGG) Ferritic 130 19 Malleable cast iron Pearlitic 230 20 Aluminum Not cureable 60 21 wrought alloys Cured 100 22 Aluminum <=12% Si Not cureable 75 23 Cured 90 24 cast High alloys >12% Si 130 25 temperature N >1% Pb Free cutting 110 26 - - - - 0.15 - 0.15 Copper Brass 90 27 alloys Electrolytic 100 28 copper Duroplastics, 29 Non metallic fiber plastics Hard rubber 30 Annealed 200 31 High Fe based Cured 280 32 temp. Annealed 250 33 0.07 0.07 Ni or Co alloys Cured 350 34 based S Cast 320 35 - - - - - Rm = Pure 36 400 (2) Titanium alloys 0.09 0.09 Alpha+beta Rm = 37 alloys cured 1050 Hardened steel Hardened 55 HRC 38 0.07 - - - - 0.07 - H Chilled cast iron Cast 400 40 0.07 - - - - 0.07 - Cast iron Hardened 55 HRC 41 0.07 - - - - 0.07 - (1) in accordance with VDI3323 standard (2) Rm - ultimate tensile strength, MPa Table 2 - Engagement Factor Kef Table 3 - Stability Factor Ks ae/D 0.5…1 0.25 up to 0.5 less than 0.25 Stability High Moderate Poor Ke 1 1.1 1.3 Ks 1 0.9 0.7 ae - Width of cut D - cutting diameter 545