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

-----

Cadmium Plating a Copper-Aluminum Bushing?

My shop needs to fabricate a bushing for an aircraft. The original design spec calls for AMSQQP416 Ty II Cl 2 cad plate on a copper-aluminum alloy base metal. I've never heard of this. Can you explain? Thanks!

Russ Ackley
Aerospace Manufacturing Engineer - Lancaster, California, USA
October 13, 2008

Hi, Russ. Mil-QQ-P-416 is the spec you are looking for. Your tax money is spent to make this spec available for free to your offshore competition, so you may as well download a "free" copy yourself from http://assist.daps.dla.mil/quicksearch/basic_profile.cfm?ident_number=51006. It describes what type II and class 2 mean, and all of the requirements for this coating. Good luck.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
October 14, 2008

Perhaps I didn't make myself clear. I had never heard of cad plating copper-aluminum alloy and I was curious as to why you would do that. Sorry for the confusion.
Russ

Russ Ackley
- Lancaster, California, USA
October 15, 2008

I'm not familiar with the component in question, but there is no particular reason why cad plating is inappropriate that I'm aware of. Perhaps the component on the stationary side of the bushing is cad plated or aluminum, and the bushing is plated for galvanic compatibility?

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
October 16, 2008

(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: