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« on: August 17, 2018, 10:43:55 AM »
Ok, I think I have that figured out on my machine.
After a few cuts I noticed that I am getting a pretty thick bur on the edges of my cuts (1/16"), I used a baseline feedrate/rpm calc sheet to start, but being that the material I am using is somewhat unique I'm not sure what to be using.
Currently, I have my IPM = 45 and RPM = 21,000 - The material I am cutting is a mix of an aluminum backer (0.013" THK), corrugated polypropylene plastic 0.2" THK), and an aluminum face (0.031" THK). I am using convention milling as well.
I did a mixed calc with Gwizard, and it gave me 23,000 RPM @ 34 IPM for both the backer and face aluminum, and 24,000 @ 121 IPM for the plastic core. Is it switching feedrates and rpms logical for this situation?