Bend Relief In Sheet Metal

Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.

Bend relief in sheet metal.

Parent topic using sheet metal tools search corner reliefs and bend transitions in the solidworks knowledge base. Bend relief and collars near pierced areas strengthen sheet metal parts. Click the create relief tool button on the sheet metal ribbon tab. One benefit of a bend relief is that it makes the part easier to produce.

Avoid large sheet metal parts with small bent flanges. The diagram shows one such mechanism. The gap between the bend and surrounding material allows us to shape the sheet in the press brake cleanly eliminating cracking and tearing. Choose create relief in the sheet metal menu.

Select an item see the note below. If it is ok for the metal to rip the minimum bend relief is zero. 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. 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.

Use the corner relief propertymanager to apply corner treatments to a folded sheet metal body that persist in the flattened state. 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. In general a minimum bend relief is equal to the material thickness plus the inside bend radius. Geometry of tooling imposes a minimum bend dimension.

To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend. Design for manufacturability sheet metal guidelines bends for the ease of manufacturing multiple bends on the same plane should occur in the same direction. There are two things that can be done to reduce the risk of sheet metal tearing. First utilize minimal bend radius of internal bend radius equal to material thickness.

Type smreliefcreate in the command bar. Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on. 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. Select a hard edge bend face flange face or 3d solid entire model.

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.