[makbari]

Hi guys,
anybody know how can I machine a aluminum piece with 0.3 depth pocket?
I have limitation of using just 1/2 dia endmill and it is in down lover of part which is aprox. 5" long, I am using 1/2" dia with 5" shank and DOC is .05
feed is so slow and speed is 6000rpm but I have lots of wibration and tools after a some cuting digging into piece and take my tool out from holder.
any idea what Can I do with this?
Thanks

[rmarchjr]

I cut 6061 that deep. It really is painful.
When i can, I've had better luck using a c-cutting end mil like a drill.
We have a 1"mill 8"L - it isn't pretty and we need to polish after cutting, but it works and if you control your rapid Z moves, its much faster (and ALOT less noisy) then side cutting.
You may break mills only 1/2" - never tried them that small.
Good Luck, I'd like to hear if you find a better solution.