Aluminum feed rate for CNC
Just wanting to confirm some feed rates for cutting aluminum, because what I read is completely different from what the guy who trained me on my ArtCAM software told me.
I have been ordering Onsrud bits from Hartlauer in Orgeon. On his "catalog" it says to cut aluminum with the 63-600 bit at 125ipm with a 1/4" bit. I was instructed to do it at a much more conservative 20-25ipm. Just wanting to get other opinions on how fast to cut, because 1, its time saved, and 2, its important to keep your chipload up, and at the 20-25ipm, chipload is not existent.
And I am cutting .190" 3003 aluminum
Thanks.
Need the rest of the story
What RPM and what coolant are you using? Is it a high presure coolant system or a basic flood system?
Chris
Re: Aluminum feed rate for CNC
Quote:
Originally Posted by
Unabiker
I cut a lot of aluminum with that same bit.
I get the best finish between 80-90ipm, 18000 rpm.
I set the mister to blow just hard enough to turn the drops barely into a mist.
I also get the same chip rewelding if the mist nozzle gets knocked away from the bit.
I was using a 2 flute carbide endmill for this same job before, and the difference in speed, finish, and tool life with the single flute bit is amazing.
Cutting depth?