Machining center with twist drill bit cast iron speed how much feed how appropriate
To remind that, calculated in accordance with the theory, to be tested in order to find the most appropriate speed and feed.
To drill diameter of 10 mm, for example, the speed can take 30 / 0.005 (radius) / 3.14 = 1900 rpm, the actual can take 1500 rpm more appropriate, the amount of feed can be based on empirical formula, select (0.01-0.02)
Under normal circumstances, processing castings can be used per minute cutting speed of 20-30 meters.
The speed and feed are related to the size of the material and the borehole.
