Grok.com: "What is the best website for metal finishing questions and answers?"

finishing.com -- The Home Page of the Finishing Industry

-----

Correcting Excessive Hardcoat Anodize Coating

I have a product which requires Hard Coat Anodize.
Outside Dia. of part only has a .001 tolerance.
I have just received an order back from a subcontracted plater, These parts are .0002 to .0003 over size on the O.D. (This is not a deviateable dim.)
Anyone know of a method to remove such a small amount retaining a 32 micro-inch surface finish? While also maintaining appearance.

Thanks for any help.

Scott Jonas
Quality / job shop - Anderson, South Carolina
July 9, 2010

Scott,

Honing or lapping can be used to remove very small amounts of material and will actually improve the surface finish rather than be detrimental to it.

Brian Terry
Aerospace - Yeovil, Somerset, UK
July 16, 2010

August 16, 2010

Using your deoxidizer may be your best bet on removing little surface and cutting way back on your etching time. Make sure an etch rate is done before doing this so you know how long to leave your strip part in without removing to much material.

Jennifer Curry
- FWB, Florida, USA

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: