This is something we are doing more and more of....
A local airplane manufacturer has us to deep-engrave & color fill some aluminum parts with text.
We're engraving about 0.025" deep per their spec (pretty deep) with a 0.020" profile tool.
Three questions:
1) When engraving aluminum like this, do YOU use coolant? If so, what do you use? I've tried WD-40, mainly to get the chips out of the engraving.
2) How fast would you run (in inches per second)?
3) How deep would you go per pass to keep from breaking tools?
My suspicion is that I was going overboard, and doing too much, too slow. However, I'm down to ONE 0.020 tool now....so I didn't want to take any chances.
TIA,
Cody |