Общий каталог Tungaloy 2020 - 2021 - страница 1650

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Parts for ToolsTechnicalReference Cutting force (N) User’s Guide - Technical Reference Milling tools Calculating power requirement Pc : Net power requirement (kW) kc : Specific cutting force (N/mm2) [Refer to the Table below] ap : Depth of cut (mm) Because practical power requirements depend on the type of mill ae : Width of cut (mm) (proportional to the true rake angle) and the motor efficiency of themachine used, the result calculated from the above formula should bevf:Feed speed (mm/min) considered as a rough guide. ᭹Values of specific cutting force (kc) Workpiece material Tensile strength Value of specific cutting force on feed per tooth kc (N/mm2) (JIS) MPa 0.1 (mm/t) 0.15 (mm/t) 0.2 (mm/t) 0.3 (mm/t) 0.4 (mm/t) SS400 520 2150 2000 1900 1750 1650 S55C 770 1970 1860 1800 1760 1620 SCM435 730 2450 2350 2200 1980 1710 SKT4 (HB352) 2030 2010 1810 1680 1590 SC450 520 2710 2530 2410 2240 2120 FC250 (HB200) 1660 1450 1320 1150 1030 Al (Si) 200 660 580 522 460 410 Brass 500 1090 960 877 760 680 ᭹Values of cutting force (kc) 1800 Principal force fy 1600 Feed force fx Back force fz 1400 1200 1000 800 fz 600 fx fy 400 200 0 vf -200 TGP4100 TGP4200 TGD4400 THF4400 TSP4000 TSE4000 TGN4200 TRD6000 Workpiece material : S50C (210HB), Diameter of mill : ø160 mm Cutting speed : Vc = 150 m/min, Feed per tooth: fz = 0.20 mm/t Depth of cut: ap = 3 mm, Cutting by a single edge, dry ᭹Conversion from cutting speed to number of revolutions (unit : min-1) Cutter diameter Cutting speed ( vc ) m/min DC, DCX (mm) 10 30 50 100 125 150 200 300 500 800 1,000 2,000 4,000 10 318 955 1,592 3,184 3,980 4,777 6,369 9,554 15,923 25,477 31,847 63,694 127,388 12 265 796 1,326 2,653 3,317 3,980 5,307 7,961 13,269 21,231 26,539 53,078 106,157 16 199 597 995 1,990 2,488 2,985 3,980 5,971 9,952 15,923 19,904 39,808 79,617 20 159 477 796 1,592 1,990 2,388 3,184 4,777 7,961 12,738 15,923 31,847 63,694 25 127 382 636 1,273 1,592 1,910 2,547 3,821 6,369 10,191 12,738 25,477 50,955 30 106 318 530 1,061 1,326 1,592 2,123 3,184 5,307 8,492 10,615 21,231 42,462 32 99 298 497 995 1,244 1,492 1,990 2,985 4,976 7,961 9,952 19,904 39,808 35 90 272 454 909 1,137 1,364 1,819 2,729 4,549 7,279 9,099 18,198 36,396 40 79 238 398 796 995 1,194 1,592 2,388 3,980 6,369 7,961 15,923 31,847 50 63 191 318 636 796 955 1,273 1,910 3,184 5,095 6,369 12,738 25,477 63 50 151 252 505 631 758 1,011 1,516 2,527 4,044 5,055 10,110 20,220 80 39 119 199 398 497 597 796 1,194 1,990 3,184 3,980 7,961 15,923 100 31 95 159 318 398 477 636 955 1,592 2,547 3,184 6,369 12,738 125 25 76 127 254 318 382 509 764 1,273 2,038 2,547 5,095 10,191 160 19 59 99 199 248 298 398 597 995 1,592 1,990 3,980 7,961 200 15 47 79 159 199 238 318 477 796 1,273 1,592 3,184 6,369 250 12 38 63 127 159 191 254 382 636 1,019 1,273 2,547 5,095 315 10 30 50 101 126 151 202 303 505 808 1,011 2,022 4,044 Note: In this table, the effects of centrifugal force on the rotating balance of the tool and the toolholder, flying risk of cutter parts, and limited value of toolholder destruction are not considered. Therefore, when using the tool at high speeds, be sure to observe the specified condition range. L062 www.tungaloy.com