For example if you make a partial flange as above using all the defaults the software makes relief cuts at the end of the bends as shown to the right.
Bend relief in sheet metal.
Sheet metal bend relief modify a bend relief the small cut made where the bend end meets a free edge and by specifying a shape and either a depth and relief width scale or specific bend relief depth.
Geometry of tooling imposes a minimum bend dimension.
In low carbon steel sheet metal the minimum radius of a bend should be one half the material thickness or 0 80 mm.
In general a minimum bend relief is equal to the material thickness plus the inside bend radius.
You are also able to select to extend the bend relief in the opposite direction in the case of a flange for example illustrations below.
Enter relief size by bend radius ratio or force bend reliefs auto.
If it is ok for the metal to rip the minimum bend relief is zero.
Choose create relief in the sheet metal menu.
The diagram shows one such mechanism.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.
You should also incorporate the use of bend relief cuts with a thickness of at least the thickness of the material with strong preference for bend relief cuts of a thickness.
To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.
A bend relief creates space between the bent and unbent surfaces so that the edge of the sheet metal is perpendicular to the bend itself.
First utilize minimal bend radius of internal bend radius equal to material thickness.
Avoid large sheet metal parts with small bent flanges.
Design for manufacturability sheet metal guidelines bends for the ease of manufacturing multiple bends on the same plane should occur in the same direction.
Use the corner relief propertymanager to apply corner treatments to a folded sheet metal body that persist in the flattened state.
Bend relief and collars near pierced areas strengthen sheet metal parts.
Synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word.
Refer to the chart for values for folder as well as various press brake tooling combinations.
There are two things that can be done to reduce the risk of sheet metal tearing.
The gap between the bend and surrounding material allows us to shape the sheet in the press brake cleanly eliminating cracking and tearing.
Select an item see the note below.
Type smreliefcreate in the command bar.
Parent topic using sheet metal tools search corner reliefs and bend transitions in the solidworks knowledge base.
One benefit of a bend relief is that it makes the part easier to produce.
