applescotty
Cast Iron
- Joined
- Jan 23, 2004
- Location
- Wellsville, KS
Guys,
I've been playing with speed and feed numbers for my horizontal mill. The problem I'm running into is my feed rate. My mill is capable of 0.003, 0.005, 0.006, 0.007, 0.010 and 0.014 inches per spindle revolution. This works out pretty well for end mills, but doesn't seem like it will work for larger cutters. Say I've got a 4" cutter, with 18 teeth. If, for example, the feed per tooth (this is the same as chip load, right?) for a particular material is supposed to be 0.004 inches per tooth, then my feed rate would need to be 0.072 inches per revolution. This is five times faster than my top feed rate. At my fastest feed rate, with an 18 tooth cutter, I can do .00078 inches per tooth.
So, my question is, will that work out okay? Am I going to dull my cutters quickly running at the slower feed rate? Or do I have this all wrong?
Scott
I've been playing with speed and feed numbers for my horizontal mill. The problem I'm running into is my feed rate. My mill is capable of 0.003, 0.005, 0.006, 0.007, 0.010 and 0.014 inches per spindle revolution. This works out pretty well for end mills, but doesn't seem like it will work for larger cutters. Say I've got a 4" cutter, with 18 teeth. If, for example, the feed per tooth (this is the same as chip load, right?) for a particular material is supposed to be 0.004 inches per tooth, then my feed rate would need to be 0.072 inches per revolution. This is five times faster than my top feed rate. At my fastest feed rate, with an 18 tooth cutter, I can do .00078 inches per tooth.
So, my question is, will that work out okay? Am I going to dull my cutters quickly running at the slower feed rate? Or do I have this all wrong?
Scott