418 Каталог TUNGALOY 2007 Режущий инструмент Точение Фрезерование Сверление Стр.414

Каталог TUNGALOY 2007 Режущий инструмент Стр. 414 0418 ENG Lab2u

Drilling Tools Drilling Tool Selection Guide For drilling difficult-to-cut materials Hard materials Hardened steels (X40CrMoV5-1) high-manganese steels etc. Heat resisting alloys Inconel 718 etc. Titanium alloys Ti-6Al-4V etc. Hole depth L D 3 5 8 Drill diameter Tolerance requirements IT 9 10 Coolant supply system Internal DSX Thread sizes and applicable drill diameter for pre-drilling before tapping When using Spiral-Jet drills for pre-drilling of tapping holes refer to the following table to select proper drill diameter. Metric coarse thread Nominal thread size Inner diameter of second class thread (mm) Applicable drill diameter for DSX types 0D (mm) Applicable drill diameter for HSS drills (mm) max. min. M3X0.5 2.599 2.459 - 2.40 M3.5X0.6 3.010 2.850 - 2.80 M4X0.7 3.422 3.242 3.40 3.30 M4.5X0.75 3.878 3.688 3.80 3.70 M5X0.8 4.334 4.134 4.30 4.20 M6X1 5.153 4.917 5.10 5.00 M7X1 6.153 5.917 6.10 6.00 M8X1.25 6.912 6.647 6.80 6.70 M9X1.25 7.912 7.647 7.80 7.70 Metric coarse thread Nominal thread size Inner diameter of second class thread (mm) Applicable drill diameter for DSX types 0D (mm) Applicable drill diameter for HSS drills (mm) max. min. M10X1.5 8.676 8.376 8.60 8.50 M11X1.5 9.676 9.376 9.60 9.50 M12X1.75 10.441 10.106 10.40 10.30 M14X2 12.210 11.835 12.10 12.00 M16X2 14.210 13.835 14.10 14.00 M18X2.5 15.744 15.294 15.50 15.40 M20X2.5 17.744 17.294 17.50 17.40 M22X2.5 19.744 19.294 19.50 19.40 M24X3 21.252 20.752 - 21.00 No. of revolutions n (rpm) Cutting speed Vc (m/min) x 1000 h- 3.14 h- Drill 0 (mm) Table feed Vf (mm/min) n (rpm) x Feed f (mm/rev)