hi guys! new here so go easy on me.
im trying to cut some 2mm alu on my 6040.
ive tried a few things now, but keep getting burring & well im getting fustrated with it.
endmills ive tried are a 2 flute 3mm carbide & a 3mm 4 flute tialn. the carbide bit started smoking, so i stopped, i think its dull now.
DOC ive tried 0.5mm & 0.3mm.
tried max feed rate & tried all the way down to 20%, 100% is 1500mm
tried with max rpm 24000, 20,000 15000.
tried using spray lubricating oil.
ive just ordered a 2 flute tialn as they seem to hold the heat a lot better.
can anyone with this machine recommend a decent 3mm endmill & some guide on the settings?