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

Force Requirements

Force Requirements

(OP)
Evening All,

I'm after some guidance on how I calculate the force required to bend a piece of aluminium.
Basically, I want do design a device that will bend a 1mm thick piece of aluminium, about 500mm wide in to a U channel shape. I plan to use tool which is a U channel shape die, and a form tool that will slide in to the side and shape the aluminium in to the channel.

Any help would be hugely appreciated

Thanks
Russ

RE: Force Requirements

The radius of the bend is an important factor. I doubt that the tooling you describe will work so the force calculation really is not important.
You must over bend the aluminum to get it to end up at the correct bend angle. The amount of over-bend required will depend on the thickness and hardness of the aluminum, which will vary enough to require trial and error adjustments from batch to batch, or even part to part. Bending machines are really common and any one of them will easily handle bending thin aluminum. You can get a hand-powered press-brake from Harbor Freight for less than $300, which will cost less that custom tooling that does not work. However, if the bend radius is to sharp or too great an angle, the aluminum will crack. That will depend on the the grade of aluminum you use.

RE: Force Requirements

RustyH,

What grade of aluminium is it?

--
JHG

RE: Force Requirements

remember spring back (you can't fold metal over a mould and expect it to retain the shape).

ok, you can if you do complicated things (like form in O condition and heat treat after forming.

another day in paradise, or is paradise one day closer ?

RE: Force Requirements

(OP)
Hi,

This is kind of what I want to do

Link

RE: Force Requirements

Well, get kind of one of those.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

RE: Force Requirements

Do you have a bench vise ?

RE: Force Requirements

RustyH,

The process and the finished part in that video looks pretty different from the description in your original post. You will probably get much more useful input if you post a drawing of the finished part you want, including dimensions and material specifications.

Is your goal specifically to design a device, or do you really just want a bunch of finished parts? What sort of quantity is planned?

pylfrm

RE: Force Requirements

Will there be any extrusion of the wall of the U channel from the die set?

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