Каталог Sumitomo сверла и развертки - страница 98

Предыдущая страница Следующая страница

Навигация

MFS Type Ideal for drilling on non-flat surfaces and less burr

DEX Coating Utilizes RS Thinning for high rigidity Various drilling operations thanks to a point angle of 180°

Applicable to high-efficiency spot facing, drilling in non-flat surfaces such as inclined

and cylindrical surfaces, and interrupted drilling. Also reduces burrs at the hole exit.

  • Improves machining stability

Sharp edge for excellent Achieves high rigidity by employing RS Thinning, which ensures thick web at the bottom. entry into the material Strong peripheral cutting edge

  • Performance

Hole Accuracy Comparison Cutting force Comparison

14.05 max MFS Type

▲（▲）ave 14.04 min 14.03 14.02

14.01 Competitor A 14.00 13.99 13.98 MFS Type Competitor A Tool : SMDH140S + SMDT1400MFS Work Material : S50C

Cutting Conditions : v =100mm/min f =0.15mm/rev Hole Depth 21mm Wet

c

  • MFS Type Head Important Notes

No Guide Hole (Solid Workpiece Hole Drilling) With Guide Hole Flat Finishing of Hole Bottom

J Application Guide Holes

Solid

Special Flat Surface Non-Flat Surface

1.5D Holder ○ ○ (Guide Hole Not Required) ○

Indexable 3D to 12D Holder Reamer Brazed

  • Recommended Cutting Conditions (MFS Type)

v : Cutting Speed (m/min) f: Feed Rate (mm/rev) Others c

Work MaterialSoft Steel (Upto 250HB)General Steel (250 to 320HB)Hardened Steel (45HRC)Stainless Steel (Upto 200HB)Gray Cast IronDuctile Cast IronAluminum Alloy
Drill Diameter DC (mm)Cutting ConditionsMin. -Optimum- Max.Min. -Optimum- Max.Min. -Optimum- Max.Min. -Optimum- Max.Min. -Optimum- Max.Min. -Optimum- Max.Min. -Optimum- Max.
Up tovc60-100-12070-100-12040-60-9050-60-8050-70-9050-60-80200-240-260
ø16.0f0.15-0.20-0.350.15-0.20-0.300.10-0.15-0.200.10-0.15-0.200.20-0.25-0.300.20-0.25-0.300.35-0.45-0.55
Up tovc80-100-12070-100-12040-60-9060-70-9060-80-10050-70-90200-240-260
ø20.0f0.15-0.25-0.350.15-0.25-0.350.15-0.20-0.250.15-0.20-0.250.20-0.30-0.350.20-0.25-0.350.35-0.50-0.60
Up tovc80-100-12070-100-12040-60-9060-70-9060-80-10050-70-90200-240-260
ø30.8f0.20-0.30-0.350.20-0.25-0.350.15-0.20-0.250.15-0.20-0.250.20-0.30-0.400.25-0.30-0.350.35-0.50-0.60

Note : The recommended hole depth is 2 x DC. The depth is measured from the highest point of the hole when drilling on inclined surfaces. The recommended cutting conditions above are for drilling on flat horizontal surfaces. (*) Inquire about drills specifically Adjust the feed rate according to the inclination angle when drilling on an inclined surface. Set the feed rate at 70% or lower when the inclination angle is 30° or less. for aluminum alloy. Set the feed rate at 50% or lower when the inclination angle is larger than 30°. This product is a drilling tool. Do not use it for traverse or helical milling.