Unbend sheet metal

[T_F]

I've a part that I'm not able to unbend it.

The forming in the bend is giving some concerns. any idea?

Can you help me?

[tbraxton]

The part you posted in not a sheet metal part, so the unbend and flatten are not available for use for this part. The geometry is brought in from a copy geometry feature. Look at the parent model for the copy geom and if it was created as a sheet metal part you can try to flatten that model.

[T_F]

The part was an imported model from other software

[tbraxton]

Have you tried flatten quilt functionality? The geometry looks to be composed of ruled surfaces so it should work.

https://www.ptc.com/en/support/article/CS107749 

[KenFarley]

That part looks like it is initially bent in the "normal" manner, but then crimped or stamped to put the strengthening feature in. Does sheetmetal handle that kind of deformation? I don't know that it would...

[T_F]

Exactly... I tried to unbend it, I had to remove the geometry of the form in the bottom bend.

I tried also to recognise that geometry as form. But no way to unbend

[tbraxton]

Perhaps if you create the geometry using two basic forms it may work. One a corner gusset (#1). An example of such a gusset is shown in the second second picture. Such a gusset will flatten using the flatten form function, so crossing a bend with the form is not an issue.

[T_F]

I've followed your suggestion, but still no able to unbend it.

Can you share the part that you shown in the second image?

[tbraxton · Accepted solution]

An example part ( Creo 7) of flat of form across bend. Flat pattern is included in the part.

[T_F]

The unbend command doesn't work well with some types of stamping forms. In this particular case, it doesn't work also.

But as you suggest the flat pattern works!

Thanks