hey guys! wondering if someone could please assist me so im not going through so many bits.
we have a sheet of 6061 aluminum that we a trying to get a nice texture ( about 1/8 '' deep for detail ) out of but we are running into problems.
We have used a 3/8 '' end mill for the rough in, which took a fair amount of bulk away, no problems with that, cuts perfectly fine, not breaking bits.
Once we took the most of the bulk with the 3/8'' end mill we switched to 1/8'' BALL nose bit and ran into some serious trouble.
The 1/8'' ball nose is getting aluminum welded around the bit quickly and causes us to shutdown because there is no profile left on the bit because of all the aluminum welded on
(note we are using the machine relief tool-path on artcam for the 1/8'' ball nose bit)
Here is the feeds and speeds that we are running our bit at : Step over : .18
Step Down .005
Feed rate : 60
Spindle : 20 000 If someone could point me in the right direction, would be much appreciated ! thanks !