Milling aluminum and cooling

[Robin Hewitt]

I want to mill 12 mm aluminium on a pretty basic mill, 600w spindle 12.000 rpm and a trasition speed of 500 mm/min.

Hi Tonny

Sounds rather like you are planning to cut 12mm deep through aluminium with a router at 8mm/s. I can't begin to tell you how much is wrong with that.

Perhaps we need a bit more info

Robin