-- The Home Page of the Finishing Industry
Serious Education & the most FUN
you can have in metal finishing smiley

No popups, spam, registration or passwords
on this site
current topics
topic 10438

Tig welding


Can anyone tell me if I can Tig weld aluminum after it has been anodized in a gold color?

Kevin McGregor
- Hagersville, Ontario, Canada


Yes, it is possible to weld anodized aluminum. The most important thing to keep in mind is that the fumes will be VERY poisonous, even deadly so proper precautions need to be taken!

Sam Jimenez
- Phoenix, Arizona, USA


Deadly?! Do you have any MSDS or OSHA statement, or anything else supporting this? Considering how easy it is to burn aluminum foil on a barbeque grill, melt and burn aluminum cans in a campfire, and destroy an aluminum pot by accidentally boiling it dry, I would think that MOST people at one time or another have been exposed to aluminum fumes and am very surprised to hear a claim that it's deadly.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey


Welding anodized al may be poisonous but not the al. To weld the anodized al it would work best with TIG welding with a pulse feature. Pulsing is the adjustable rate the current switches back forth - to + . A experienced TIG welder with that feature on his machine will be able to float the anodization to the top of the weld and not let it contaminate the weld.

Joseph Kittok
- FT Stewart, Georgia, USA


A square wave will not float the anodizing. You can weld it but the finish will be the base metal.

Mark Brenner
- Tempe, Arizona, USA

If you have a question in mind which seems off topic, please Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.