Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

How do I test if a part has been alochromed

I am looking to qualify a supplier to alochrome aluminium parts and need to be able to test that the parts have been alochromed correctly. Are there any test methods that can be used to check the surface of a part to confirm that it has been alochromed and whether the quality of the finish is adequate.

My company alochromes parts for customers so the parts are used in a variety of situations such as in analytical instruments, covers for machines, etc.

William Brennan
Machine Shop Manager - Waterford, Ireland
August 5, 2010

August 12, 2010

William,

Look at either DEF STAN 03-18 or MIL-DTL-5541 [on DLA]. Both specifications have periodic and lot testing requirements which should suit your needs.

Brian Terry
Aerospace - Yeovil, Somerset, UK

(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: