As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Ask Grok.com, or ChatGPT, or Google: "Best website for metal finishing questions?"

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  -----

Removing heat treatment coating before Cadmium plating




WE ARE REQUIRED TO BRIGHT CADMIUM PLATE NEWLY MANUFACTURED BUSHINGS.

THESE ARE MADE FROM 17-4 AND 15-5 PH STEEL. THEY ARE HEAT TREATED TO 180 - 200 KSI.

THEY ACQUIRE AN OXIDE COATING FROM THE HEAT TREATMENT WHICH MUST BE REMOVED BEFORE THEY GET A NICKEL STRIKE.

CAN YOU SUGGEST A RELATIVELY SIMPLE APPROACH TO THIS SUCH AS AN IMMERSION DIP OR SUCH LIKE?

BEST REGARDS

FRANK DUNLEAVY
FLS AEROSPACE LTD. - DUBLIN, CO. DUBLIN, IRELAND
2004



I can't say that I know the exact answer, Frank, but shouldn't you be looking at abrasive blasting rather than chemical pickling for this?

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha

finishing.com - Pine Beach, New Jersey

Ted is available for instant help
or longer-term assistance.

2004


You have to comply with procedures from the OEM since you are doing aircraft work. You must live by approved methods and can not freelance unless you have OEM approved engineering change authority. Most aircraft MFG's would use a well maintained vacuum furnace which makes heat treat scale very minimal and normal processing should be adequate.

James Watts
- Navarre, Florida
2004




No dead threads! If this page isn't already on the Hotline your Q, A, or Comment will move it there.

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:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"