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- Feb 8, 2014
- Messages
- 11,145
On a worst day, may get 10 pieces per endmill. On a good day, maybe 30 pieces. Also depends on how dull you want to make them before changing out. Or how often you break off one. Shame you couldn't run a 3/4 rougher! Be much stiffer less likely to break off....
I wish I could run a 3/4 or even 1 inch. I thought about running them vertically and using a radiused nose, But I couldn't figure out a way to locate them properly.
He is going to run a corncobb, but he has to contend with a 2"+ flute length to do the part in one pass. I might point out that the feedrate will need to change as you cut through the full 2" wall at the terminus of the cut. Might make a performance difference starting on the side vs starting on the end. Have to think about that.
I think I'd order 10 end mills, or wherever I could get a price break and do some metrics on tool life. I assume you have ready access to end mills?
I am going to have to run a few parts to figure out the best feed rate. I very well may change the feed rate through the full wall. The only end mills in that flute length are Interstate from Enco. I would rather have Hertel or OSG but they are not available in that length.