Sheet Metal Bend Relief

To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.

Sheet metal bend relief. Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on. When designing parts for laser cutting one should not make holes smaller than the thickness of the material. We would like to show you a description here but the site won t allow us. Bend relief is provided at the end of bending edge in sheet metal design to avoid any crack tearing in the corner.

Enter relief size by bend radius ratio or force bend reliefs. 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. Bends in sheet metal are manufactured using sheet metal brakes. A 1 degree tolerance on all bend angles.

Bend relief and collars near pierced areas strengthen sheet metal parts. One benefit of a bend relief is that it makes the part easier to produce. Synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word. Do one of the following.

Select a hard edge bend face flange face or 3d solid entire model. If it is ok for the metal to rip the minimum bend relief is zero. 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. 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.

Choose create relief in the sheet metal menu. Design for manufacturability sheet metal guidelines bends for the ease of manufacturing multiple bends on the same plane should occur in the same direction. Relief height is generally kept greater than two times of sheet thickness plus bend radius. Avoid large sheet metal parts with small bent flanges.

Type smreliefcreate in the command bar. Select an item see the note below. The gap between the bend and surrounding material allows us to shape the sheet in the press brake cleanly eliminating cracking and tearing. 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.

Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured.