One of my Introduction to Metalwork students asked me to expand on drilling speeds:
”A quick question – drill speed. You touched on it briefly in one of the sessions, but is there an optimum speed for different metals? If so, how is it determined?“
At the simplest level (its more technical in a manufacturing environment), it has to do with the metal itself, so its a “material property”.
There are “recommended” or “optimum” cutting rates measured in “surface feet per minute” or in “meters per minute”.
Therefore if you need to drill a 10mm hole, the speed for drilling depends on the material.
Its a super juicy question, so I built a simple calculator in a Google Sheet and Excel.
Click here to access the calculator and instructions.