Aluminium settings

My little contribution after some tests on a square 50x50mm alu-profile doing 1 or 2 mm deep pockets.
Below the settings that I feel comfortable with:

Material      = Aluminium 6060 T6 (not anodized/nicht eloxiert)
Milling bit   = 1/8" (3.175mm) Carbide coated 2-Flute End Mill by cnc-plus.de
RPM           = 12000
Feed rate     = 70 mm/min (1.16 mm/s)
Plunge rate   = 50 mm/min (0.83 mm/s)
Deep of Cut   = 0.2 mm
Lubrification = 1 or 2 drops of commercial cutting oil every 10 seconds.

What above is not a scientific test. I've tested various speeds and feed rate while listening just at my ears.
In other words, above settings give me the "impression" that the machine is working smootly, I cannot say how much is true and how much is pure imagination.
Maybe I could use more aggressive settings but tool deflection problem is always with us.

I have to say that I'm not completely satisfied when doing small cylindrical pocket. By using an helicoidal path I still hear a little "grrr grrr" noise at the start of any down-step. No way to eliminate it completely (suggestions are welcome).

Happy milling!
Tschussssss! 🙂

BTW, I was using this end mill.

Uh! I've found a (low quality) photo about milling several pockets with the settings published above (pockets are 1,5mm deep).

Hey great info you've posted here ... this a nice post which I missed... but found very helpful later. My salutations to everyone on this thread https://stepcraft.us/aluminumspeedfeed/