×
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!
  • Students Click Here

*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.

Students Click Here

Jobs

doubt on frame welding call out

doubt on frame welding call out

doubt on frame welding call out

(OP)
Hi, I got a doubt in between reviewing a square tube weldment. Th designer called the square weld in th drawing(PFA). I beleive the welding call out should be flare bevel based on cost & practical easiness. Please help me to confirm whether I am right or wrong?.

As well please suggest me any good professional welding design books.which includes practical project based approach.

RE: doubt on frame welding call out

That type of joint is usually has an all-around weld. Keeps the water out of the joint, is easier to paint, prevents racking motions that tears the ends of the two side welds out if they were not joined with the two end welds.

RE: doubt on frame welding call out

The weld passes on the 'long' sides can be tricky. The corners of these are quite rounded, so even if you cross piece is square cut you will have a fillet along there.
But the other two sides will need a bevel if you expect any penetration.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: doubt on frame welding call out

If all you want is a weld along the two outside edges of the joint then the flare bevel (2X) callout is correct, assuming the tubing is rolled/welded steel material. Rolled/welded square steel tube typically has the rounded corners shown in your sketch, but square aluminum tubing is usually extruded and has sharp corners. So a weld joint at the same location with aluminum tubing would require some beveling of the joint edges, and would use a different weld symbol.

As EdStainless noted, the outside corner radius of rolled/welded steel tubing can be fairly generous, especially with thicker tube walls. If the end of the perpendicular tube member is cut flat there can be a considerable gap at the inside edges of these two outer joints that must be bridged by the welder.

RE: doubt on frame welding call out

(OP)
Hi all, thanks for the reply.

here the Material is cold formed steel tube for structural applications.I have red lined such a way to call "2X FLARE BEVEL" for two sides and "2X FILLET" for other two sides.I think i shouldn't call all around fillet or all around flare bevel weld here.

I believe the welding will be as per the attached image after the finishing process.

In between i have found out a nice explanation of the welding of hollow structural tubing, http://steeltubeinstitute.org/hss/faq/welding-hss-...

Here in my organization designers wont care much about welding. They just put symbols that's it. The suppliers takes care based on their long term experience with our products. But still i want to know the details for my improvement.

Thanks , Vimal




RE: doubt on frame welding call out

Vimal,
As per your attachment, we also use flare-groove welds in this situation.

“Know the rules well, so you can break them effectively.”
-Dalai Lama XIV

RE: doubt on frame welding call out

"Here in my organization designers wont care much about welding. They just put symbols that's it".

May I quote this?


Thanks.

Bob

RE: doubt on frame welding call out

Why should they be different?

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