Quote Originally Posted by DuffelBuffelWuffel View Post
After about 30 seconds to 1 minute of time before the endmill would clough up again. Other than that is worked perfectly, nice surface finish and fast milling. The chips were about 10 mm long with a small spiral in it and they were not warm. The endmill got hot because of the rubbing.
The chips being cold is not a good thing. They should be so hot they hurt when they hit your skin and the part should be cool.

With a 6mm tool and 10mm doc with 0.6mm Stepover is a fair removal rate so will need plenty of chip clearing so if you haven't got enough air or coolant then you'll be recutting chips and why cutters are gumming up.

Buy some serrated edge 3 flute carbide roughing cutters and you'll get much better removal rates.
With 8mm 3 flute roughing tool I can cut 15mm DOC ground plate with trochoidal tool path with upto 1.5mm stepover at 2500m/min dry no lube just air, lots of air. With Air mist I can push harder.

Finish with full depth 0.2mm pass using 2 flute HSSE cutter with air/lube and get a mirror finish.

Air is a minimum must have when cutting ali and plenty of it. Low fog mister is perfect provided there's enough air to clear chips.