×
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

Sheet Metal Bend K Factor

Sheet Metal Bend K Factor

Sheet Metal Bend K Factor

(OP)
I am trying to understand how IV uses the K Factor in sheet metal bending.  If I create a bent "angle iron" shape, the bend line does not show up where I'd expect it to, and there seems to be no setting I can change to move the bend line.  I am assuming the K Factor is used to affect this, but no matter what K Factor I use, the bend line is always in the same place.  I really would like to have no compensation in my flat patterns.

   

RE: Sheet Metal Bend K Factor

The kfactor is used to calculate the flat pattern dimensions based on the material and machinery you use to create that bend... When formed metal must contract (squish) on the inside radius and expand (stretch) on the outside radius. The kfactor accounts for the change in material size based on expansion/contraction of the metal during forming.  

RE: Sheet Metal Bend K Factor

(OP)
I was refering to the bend line in the .ipt flat pattern, which I would assume should be the same as the bend line in the .idw.

At any rate, I got the bend line location to change as expected.  There must be a bug of some sort in Inventor, as I was doing exactly what technical support was suggesting, but nothing was changing, then a day later upon restarting Inventor and trying a couple more times it all of a sudden worked (I didn't do anything differently).

Thanks for the help.

RE: Sheet Metal Bend K Factor

Quote:

(I didn't do anything differently).

The first step whenever getting unexpected results is to make sure you have the latest Service Packs installed.
2nd step (1st step if you already have SP) is to reboot and see if you can reproduce.  Did support have you reboot in your earlier test?

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