INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Ftyw for 6063 T4

Ftyw for 6063 T4

(OP)
Have a job to sign and seal railing manufacturer shop drawings. They have been building these things the same way for years, but the county is becoming very involved in reviewing. Trying to prove that their design works.

Main structural elements (post, etc) are 6061-T6 but they like to use 6063-T4 for intermediate rails and pickets. My issue is that I can't seem to find the weld-affected yield stress from the Alum. Design Manual or from the internet. The unaffected Fy is published on the internet but is also not in the ADM.

6061-T6 = 35 ksi and 15 ksi respectfully (42% of unaffected). Would it be reasonably conservative to take 42% of the 6063-T4 --> .42*13 ksi = 5.5 ksi?

I am not an aluminium expert so take it easy on me...

-Mac

RE: Ftyw for 6063 T4

Use the base metal welded yield strength versus the actual weld metal. That would be the more conservative approach.

RE: Ftyw for 6063 T4

MacGruber22...

Are these welds primarily Butt [tensile] or Fillet [shear] or ???

NOTE.
Aluminum Association WATP23 Welding Aluminum Theory and Practice may give You insight into welding design [typ joint values] with 6061-T4 and 6063-T4.

Regards, Wil Taylor

o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]

RE: Ftyw for 6063 T4

(OP)
They are fillet welds. But, maybe I wasn't clear - I am concerned with the reduced member capacity due to incoming members welding near high stress areas.

I am definitely going to check the WATP23 - thanks for that reference, WK.

-Mac

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close