SUMIDIA Small Hole Cutters DFE Type ■ Characteristics ● A brazed type multi flute cutter that is best suited for high feed rate machining ● Best suited for front face cutting of aluminum alloys and non- ferrous metals due to the excellent fracture resistance and cutting performance of DA2200 ● Perfect for small machines. Endmill type small hole cutters ● Has internal oil delivery type oil hole that handles high speed machining ■ Body Fig 1 0 -0.2 DMM h7 DC 4 R0.4 LH LF Fig 2 0 -0.2 DMM h7 DC 4 R0.4 LH LF Fig 3 0 -0.2 DMM h7 DC 4 R0.4 LH LF Dimensions (mm) Grade Cutting Length Head Shank Cat. No. diameter diameter No. of flutes Fig DA2200 DC LF LH DMM DFE 4200GS D 20 80 25 16 4 1 DFE 6250GS D 25 80 25 16 6 2 6300GS D 30 80 25 16 6 2 DFE 8400GS D 40 80 25 16 8 3 8500GS D 50 80 25 20 8 3 ■ Recommended Tooling Cutting Speed vc (m/min) Feed Rate fz (mm/t) Cutting ISO Work material Min.- Optimum -Max. Min.- Optimum -Max. Grade Conditions N Aluminum alloy 200 to 800 to 2000 0.02 to 0.05 to 0.10 DA2200 M ap SUMIDIA ■ Application Work material Cutting conditions Results SUMIDIA Example ADC12 Tools: ・ Obtained a good machined SUMIDIA Binderless Aluminum alloy DFE8400GS surface without burrs. SUMICRYSTAL Motor case part Machining conditions: ・ Cycle type was greatly reduced due vc = 1,500 m/min to an increased number of flutes n = 11,940 min −1 compared to insert type cutters. fz = 0.03 mm/t vf = 2,865 mm/min ap = 0.5 mm Wet M42