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Hi Peter, sure I can tell you what I did, and I can tell you now it wasn't all good with my first cuts too , in fact they were horrible (see pic) and I also went through some cutters. The alloy was 6061. Cutting feed rate was 1000mm/min, plunge was at 10mm/min, spindle speed was at its lowest which I believe is 10,000 rpm, its a kress 800 spindle motor. I took multiple cut depths at .1mm, I did try .2mm and it seemed fine but I just felt more comfortable at .1mm, I will likely try more at .2mm again. Also I ramped in, I'm still very new to this so I'm not sure if lead in will give same results as ramp but I'm assuming it would be similar. Cutter was 2 flute 2mm carbide. I used air blast and wd40 for lubrication. I'm concerned about tool life but until I can cut some more I just don't know life expectancy from these cutters. Also included another pic of some test cuts with depth cuts at .1mm and .2mm.peterg1000 wrote: Hi,
Interested to see you have milled an aluminium part successfully. I had a disaster on my first attempt and broke the cutter when everything jammed up.
I haven't tried since, but would greatly appreciate information on the grade of Al you used and cutter details (size, spindle speed, feed and plunge speeds etc).
Regards
Peter
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