Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

Chime right in! (no registration req'd)

-----

Anodizing a Weldment of Different Aluminum Alloys



October 14, 2021

Q. I am a manufacturing engineer at a company that manufactures aluminum engine oil coolers. We vacuum braze cores. The components in the cores are made from 6061, 3003, and 4004 alloys. After building the cores we weld A356 cast components to the cores. The fin construction in the core is similar to what is seen on a radiator. We are considering sulfuric anodize for corrosion protection for this product. Is it possible to anodize a product that contains 4 different aluminum alloys?

Trista Schroeder
- Troy, Indiana
^


October 15, 2021

A. Trista

yes it is possible to anodize a part that is consisting of 4 different aluminum alloys, but the results may not be favorable. the 4 alloys you plan to use anodize differently meaning some will anodize more quickly while others will take more time. what this equates to is varying thickness from alloy to alloy and a good chance of color variation. you might be able to get away with hard coating the parts but you could end up with a collage of different colors because each alloy takes on a different color during the hard coat process.
the ranges of color may be more dramatic depending upon the thickness you are wanting to attain.

Philip J. Verzal
Saporito Finishing Co.
supporting advertiser
Cicero, Illinois
saporito
^

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start 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:

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


About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA