So, I work in a small tool room. I have a Fadal Mill with 10k spindle. I have really good coolant, always keeps my tools and parts cool.
I have to do a bunch of profiling and pocketing into 4140 pre-hard. I've never dealt with it before, so this is going to be my first swing at it.
So I have .5" 4 flute uncoated carbide endmills and a couple of .5 4fl ALTiCrN coated endmills to work with. Nothing much bigger, besides maybe a 5/8, which is uncoated aswell.
I use Cam software that doesn't input feeds and speeds for me unless I manually set them & save them. I've got some engineers saying small (.010") passes with fast feeds, and another guy saying .05 passes with slow feeds. So I'm pretty lost right now, and can't afford to destroy my tooling. I do understand that I may get 5 different answers here, but I have to do my best to find the happy median.
Any help is appreciated.