unfolding sheetmetal

We are messing around with unfolding sheet metal parts. One problem we are
encountering is that the unfolded parts are not workable. The stretch that
happen during bending is different from what wildfire calculates. we have
used different bend allowance table and k facters ... but still the bend
allowance/ stretch are off. Usually when we calculate stretch at the shop
for stainless steel we use 1.6 X thickness and that give us a very accurate
stretch. Where can we find info on how to get wildfire 2 to unfold with the
correct stretch/bend allowance?

 

I've had the same problem and have had to resort to assigning each wall
to look at a specified bend table. Even then, I've had to go back and
double check each developed length to make sure. Generally a few still
aren't right and reassigning the DL to "return to driven" will get it
right.
Personally I think that PTC has really screwed up the Sheet Metal
module.

Marty

 

There's still no ability to pattern a Flat Wall, Flange Wall and certain
other types of Wall features. I would like to have the ability to perform an
Unbend Sel on an Unattached Wall feature that is in its formed state when
there are other Unattached Wall features present in the model. Of all the
Pro/ENGINEER modules that we use regularly, Pro/SHEETMETAL needs the most
improvement for the types of parts that we design
and manufacture.

J. Perry

 

To clarify the Unbend Sel request, I am referring to models that contain
multiple Unattached Wall features that are not yet connected with Merge Wall
features.

J. Perry