We are experiencing spotting in turned 6061-T6 bar stock. The bar stock is turned and either anodized or polished with a high cosmetic requirement. In the past, our only resolution has been to use increasingly difficult to obtain "control grain" products (Alcoa's 6061-T6511X or Kaiser's 6061-T6511C for example). We have had some relief by using a minumum amount of etching on the anodized pieces, but this proves only slightly better.
I was hoping someone could comment on:
1) the possible alternatives to these products and/or
2) the wishful possibility of using a standard off-the-shelf 6061 product and somehow treating it to acheive a clearer finish in both anodized and polished situations.
Thanks in advance for any assistance you can give.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.