×
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

Barbell-shaped rolled steel - does it exist?

Barbell-shaped rolled steel - does it exist?

Barbell-shaped rolled steel - does it exist?

(OP)
Does anyone know if barbell-shaped rolled steel barstock is available?  I would swear I saw some 6 or 8 or 10 years ago, but sitting here thinking about it now, that might have been aluminum.

What I am looking for would be 3.50" to 4.00" dia rounds on 9" to 10" centers with the connecting web of 1.00" to 1.50" thickness.  O--O

RE: Barbell-shaped rolled steel - does it exist?

Doubt it.. Probably an aluminum extrusion or something.

RE: Barbell-shaped rolled steel - does it exist?

I would chek with forge shops, espeially the one that roll rongs.
If your quantity will allow it your part coould be cast.

RE: Barbell-shaped rolled steel - does it exist?

(OP)
Yeah, checking with forge shops is a good idea.  We'll need at most a couple hundred parts a year and the thought came to me that I had seen the barbell profile years ago and was surprised by it.  I'm thinking it was an architectural application, maybe at a sports arena or airport, or one of those retro-styled small bridges in some downtown rejuvenation project.

RE: Barbell-shaped rolled steel - does it exist?

If it is  for architectural utility then a cast piece should be adequate. else,you may consider casting it followed by forging .

RE: Barbell-shaped rolled steel - does it exist?

I don't mean to hijack this thread but I read something I had not considered in one of my applications - casting and then forging.  Does the forging tend to subtantially mitigate some of the casting inadequacies as far as fatigue properties go?

RE: Barbell-shaped rolled steel - does it exist?

It can, depending on the amount of workdone on the casting. any reduction in defect size and distribution will improve mechanical properties.

RE: Barbell-shaped rolled steel - does it exist?

Forging a cast preform can improve both static and fatigue strength.  It is essentially the same concept as powder forging, where a pressed and sintered powder preform is subsequently hot forged to consolidate the microstructure, reduce porosity, etc.  The latter process is very common for automotive components like engine connecting rods.  The former is not very common, but one process that had some commercial success was Cobapress, which used a cast aluminum preform and subsequent hot forging to increase fatigue strength, etc.  Automotive control arms were one area of application.

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