Общий каталог Tungaloy 2020 - 2021 - страница 1648

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Parts for ToolsTechnicalReference Rp DD aeae User’s Guide - Technical Reference Milling tools Calculation formulas for milling ᭹Cutting speed ᭹Cutting speed (Calculated from number of revolutions) n vc ： Cutting speed (m/min) D ： Effective diameter (mm)〔DC, DCX〕 vf n ： Number of revolutions (min-1) π53.14 aeap ᭹Number of revolution (Calculated from cutting speed) ᭹Feed speed and feed per tooth vf : Feed speed (mm/min) fz : Feed per tooth (mm/t) z : No. of teeth of the cutter n : Number of revolutions (min-1) fz (Feed per tooth) Feed speed is relative speed of cutter and Workpiece material and in the f (Feed per revolution) normal milling machine, it is the table speed. f In milling, the feed per tooth is very important. The recommended cutting condition is expressed by vc and fz and using the above equation calculate n and vf and input in the machine. ᭹Cutting time on face milling T： Cutting time (min) L： Total table feed length. (R: Workpieces length (mm) + øDc: Effective cutter diameter (mm) D 〔DC, DCX〕） vf ： Feed speed (mm/min) 〔 〕The notation in the brackets is the one used in the catalog (ISO compliant) Depth of cut and width of cut ᭹Depth of cut Determine by required allowance for machining and capacity of the machine. In case of mill, there are cutting limits according to shape and size of the insert. Please see spec in the catalogue. ap : Depth of cut (mm) ᭹Width of cut and engagement angle D ：Cutter diameter (mm) Centercutting There is an appropriate engage angle 〔DC, DCX〕Vcdepending on the cutter diameter, cuttingposition, Workpiece material, etc., andE：Engage angle ordinarily the values in the table below ae ：Width of cut (mm) E are used as a guide. 〔 〕The notation in the brackets is theone used in the catalog (ISO compliant) Shouldercutting Center cutting Shoulder cutting Workpiece Appropriate Cutter dia. Workpiece Appropriate Cutter dia. Vc material E and ae material E and ae E Steel ~ 42° ae Լ Ϫ23 D Steel ~ 30° ae Լ Ϫ53 D Cast iron ~ 53° ae Լ Ϫ45 D Cast iron ~ 40° ae Լ Ϫ43 D L060 www.tungaloy.com