×
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

please answer

please answer

please answer

(OP)
what is the radius of curvature of 3mm (aluminium) sheet. thanks.

RE: please answer

I have a handy chart that gives me "Minimum Bend Radii". I assume that's what you're after. The answer is: It depends on what type of aluminum you're dealing with:
For Alum 3003, H14, 5052, H22, H32, use .125" min radius;
for Alum 1100-H18, 5052-H36, 6061-T6, use .375" min radius;
for Alum 2024-T3, use .5" min radius.

RE: please answer

Some good sources of information include: FAA Advisory Circular AC43.13-1A. USAF Technical Order 1-1A-1

General rule of thumb. 1.5*thickness of metal (inches)

If you have to come close to the minimum, consider the direction of the grain and the heat treatment of the metal. It is always better to bend against the grain (perpendicular) than with the grain. And never bend tighter than in the -O (Original) condition.

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