1012 Каталог TUNGALOY 2017 Металлорежущий инструмент и станочная оснастка Стр.E062

Каталог TUNGALOY 2017 Режущий инструмент и оснастка Стр. E062 1012 ENG Lab2u

2-effective Drill STANDARD DRILLING CONDITIONS ISO Workpiece material Обрабатываемый материал Cutting speed: Vc (m/min) 03 05 Feed Подача f (mm/rev) 05 010 010 016 016 020 K Aluminium alloys Алюминиевые сплавы 60 - 120 0.2 - 0.4 0.3 - 0.5 0.4 - 0.6 0.5 - 0.7 Grey cast irons 40 - 80 0.15 - 0.35 0.25 - 0.45 0.3 - 0.6 0.35 - 0.65 Ductile cast irons 30 - 70 0.15 - 0.3 0.2 - 0.4 0.25 - 0.5 0.3 - 0.6 Notes: The above table shows standard and typical cutting conditions for DMX - FM type drills. Because the cutting conditions may be changed depending on the material type, hardness, machinability, machine tool, and coolant, the most appropriate conditions must be decided whilst referring the chip control condition and tool failure mode. When using the smaller side of the diameter range, the feed rate should be set lower. When working with long overhang or using "L" type drills, the feed rate should be set lower. NOTE ON CUTTING FLUID Cutting fluid should be sufficiently supplied to the drill point and the entrance of the hole. Use a water soluble cutting fluid containing relatively high content of extreme pressure additive for heavy duty cutting or use a water insoluble cutting fluid. No. of revolutions (min-1) = Cutting speed x 1000 + 3.14 + Tool diameter Table feed (mm/min) = No. of revolutions x Feed per revolution Low Feed f High Small dia. Drill dia. Large dia. L type Overhang S type (Long) of drill (Short) E062