Forming Flange Straightening

Forming flange straightening

This command allows you to straighten the fallen edges and create trunk corners.

Creation stages / Use:

Click the icon or select Sheet Metal > Forming flange straightening... from the drop-down menu.

Face Straightening:

Select the face that will not be straightened .
Select the border edges between the reference face and the fallen borders. (the edges have to be selected on both sides of the bend).
Select the straightening mode.

Deletion: Allows you to delete the fallen border.

Extension: Allows you to extend the reference face by entering an extension value.

Extension by measurement: Allows you to extend the reference face. The extension length is automatically calculated by taking into account the length of the rounding + the length of the flange. The selection point on the border is therefore important


Initial Sheet Metal	After Deletion


After Extension	After Extension by Measurement

The forming flange straightenings are always created by extending border edges.

Sheet metal to straighten

(perspective view)

Sheet metal to straighten with boundary edge (top view)

Straightened sheet metal

(top view)

Extension on unfolding:

This mode allows to define on the 3d part extension areas. They will be automatically reported on the unfolding document, without adding geometries on the 3d.

Edges to extend have to be identified as well as the extended value to apply.

Edges to extend can be on the boundary of the part to treat. In this case the extension will be added on the unfolding of the part to treat.

Example of Forming flange straightening only on the unfolding.

They can also be in the part. In this case, the extension will replace the area of the part identified by the operation.

Round corner:

This mode allows to create an unfolding shape of a «round corner».

Several configurations are supported:

3 connected edges (the design must be completed by a slot).


Initial Sheet Metal	3 connected edges

2 connected edges.


Initial Sheet Metal	Result


Initial Sheet Metal	Result


Initial Sheet Metal	Result

In order to not work on the basic part, you can create a derived part.

Available Options:

Keep Border Edges:

Allows you to mark the face at the location of the borders.