Quote:
Originally Posted by mrnoble
it's a 220 three-phase. Maximum speed is 400"/min.
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Okay with 5HP at those RPM and your possible feedrates you are probably running into the coolant problem as has already been discussed.
If you cut slow and shallow enough with a single flute like you would on a manual mill you can probably cool it by hand but that's a drag. Be warned there can be such a thing as too slow.
You don't sound like you have an enclosure so flood coolant would spray vegetable oil all over to go rancid later (not to mention be sticky, slimy and a hazard).
Mist coolant might be a good option. The flow is slower so you won't just get it in the face like a water gun. You will likely still have to slow down from the speeds you could get with proper flood coolant. Also you probably want to hang a curtain to contain things. Still less involved than a box, gutter, chip auger, collection tray, filter and big pump. Look at something like the KoolMist (this is neither my assurance it is the perfect solution nor a product recommendation just a suggestion).
Just for Maker fun:
https://www.youtube.com/watch?v=bTRuDzdezbg
Still would like to know what the actual problem was you were seeing while doing aluminum.