I ran a batch of 7075 parts in my vibratory tumbler and some of them appear to be 'stained'. Has anyone seen this before? Is this corrosion?
I cannot feel any surface finish change in the stained area. Even looking at it with a loupe, it appears to be just as smooth as the adjacent aluminum.
Thank you!
Jon
I cannot feel any surface finish change in the stained area. Even looking at it with a loupe, it appears to be just as smooth as the adjacent aluminum.
Thank you!
Jon