Sheet Metal Bending Corner Relief

At the time we only explained how these reliefs worked.

Sheet metal bending corner relief.

This is due to excessive localized stresses from the work hardening forces imposed on the metal. Click the create relief tool button on the sheet metal ribbon tab. Click corner relief sheet metal toolbar or insert sheet metal corner relief. This is to keep the material from fracturing while forming the metal.

Bend relief is provided at the end of bending edge in sheet metal design to avoid any crack tearing in the corner. Extrude hole size position guidelines creating an extruded hole using a punching process requires extreme pressure force. Select an item see the note below. In the corner relief propertymanager under scope select the sheet metal body to which to apply the corner relief.

Material bend radii and minimum bend size charts please note. Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend. One benefit of a bend relief is that it makes the part easier to produce. Bend relief synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word.

Under corners click collect all corners to list all corners in the sheet metal body. Similarly insufficient bend radius may lead to brittle fracture failure of the sheet metal. The bigger the bend relief the easier it is to align over the end of the tooling. 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.

Without a bend relief the part may slip unpredictably in the tooling as the bend is made. In december 2013 we showed the new types of corner reliefs that were added with solidworks 2014. 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. The bend radius you select may not be available if the geometry of the part will not allow us to bend with the specific tooling required to achieve that radius.

Normally that dimension is called out on the blueprint. In general a minimum bend relief is equal to the material thickness plus the inside bend radius. The bend relief eliminates some burrs and sharp points. Type smreliefcreate in the command bar.

You can add a corner relief to a single sheet metal body. In this article we are going to explore how the feature is applied to the part to create the appropriate relief. Another benefit of a bend. The gap between the bend and surrounding material allows us to shape the sheet in the press brake cleanly eliminating cracking and tearing.

Select a hard edge bend face flange face or 3d solid entire model. Sometimes this notch is used for parts with a large bend radius. Choose create relief in the sheet metal menu. See the picture on the side for an example.

If it is ok for the metal to rip the minimum bend relief is zero. Relief height is generally kept greater than two times of sheet thickness plus bend radius.