Quote Originally Posted by Toolguy View Post
I have never had work hardening with my parts. They are either 6061-T6, 2024-T3, or 7075. Maybe you had a different alloy?
I'm almost positive I was using 6061, but I don't know if it was annealed or not. It definitely work hardened, though. I'm guessing it was so bad because of the relatively thin material, and I may have left it in the polisher too long. But it never dawned on me that might be a problem until it was.