Opine on facemilling 7075

[88Matt]

When it comes to facing aluminum, I've found Mitsubishi to be the best.  Unfortunately the facemill that NEVER chattered for me is discontinued, but the AXD are fantastic too.

We recently got a 4" Sandvik Century RA590 facemill (not cheap) and that thing is amazing for surface finish if you ever need a part smooth as a baby's a$$. You can dial each insert in.

Thanks, for the info on the AXD. I'll look into the Sandviks as well.  I really like the idea of dialing in each insert.

 

Double stick tape, if it's practical in your situation.  Essentially free state, and should take care of the chatter since its "supported" over the entire part.  To get rid of chatter and get a better finish out of a facemill for stuff like this, I've also taken out all but one of the inserts... basically making it a flycutter.

 

The plates are to warped to use tape, plus it would be a PITA with the number of plates I have to do.

Old school fly cutter with HSS cutter.  Trust me...

I'm limited to a 2"Ø, or I would try a fly cutter.  I am going to try taking two inserts out of my current cutter today and see what happens.