Closed Jaknil closed 5 years ago
I just want to note that this is very much a matter of the type aluminum used. I've had to use quite different settings when we machined aluminum last time, due to a softer type.
Yes. New values for roughing is 36mm/s and 1.8mm pass depth. Finishing should be done at a lower feedrate. The old 12mm/s is safe. It is probably possible finish mill at a faster feedrate. But finishing at the same 36mm/s seemed to be too fast and left an uneven edge.
0.1mm stock to leave is a little bit too little for a 6mm bit. 0.18mm or 0.2mm is good. My default is 3% of tool diameter stock to leave
Newtoneas, what type of aluminum alloy did you mill and which settings? We have typicically used 6082 aluminium.
Awesome! Closing issue
I would like to add the new high speed feeds and speeds to the alu-milling guide
These are the "safe" values I always used so far:
For higher speed rough slotting Jens mentioned that 3x feed and 1.8mm pass depth for the 6mm bit gave good results if you then used the safe speed for the finishing pass (0.1 mm stock to leave).
Were those the final numbers?