Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site
pub Where the world gathers for
plating, anodizing, & finishing Q&As since 1989





-----

Welds turn black when clear anodized





2005

We are fabricating handrail from 6063 T6 aluminum. The joints are TIG wleded and then the handrails are anodized with a clear finish. The problem is when we get the product back from the anodizer the welds have all turned black even the ones that are ground off. What type of filler wire will change this?

Brad Freund
welding service - Wisconsin Rapids, Wisconsin, USA



2005

That is the nature of the beast. Different alloys anodize to different colors. You may lesson the differenmce by avoiding a nickel seal.

robert probert
Robert H Probert
Robert H Probert Technical Services
supporting advertiser
Garner, North Carolina
probertbanner



2005

5356 welding rod should be used when welding aluminum that is to be anodized. The welds will still be an "off" color", but it shouldnt be as bad. It sounds as if your welder is using 4043 rod.

Marc Green
Marc Green
anodizer - Boise, Idaho


none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages



(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:

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


About/Contact    -    Privacy Policy    -    ©1995-2023 finishing.com, Pine Beach, New Jersey, USA