Sheet Metal Relief Cuts

Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on.

Sheet metal relief cuts.

Overhangs become more prominent for thicker parts with a smaller bend radius and may even be as large as. Options in basic sheet metal base flange tab. Sheet metal parts may have sharp corners but designing a fillet of the material s thickness will make parts more cost effective. You can add a corner relief to a single sheet metal body.

This same tool can be used to make a flat piece of sheet metal that one would use to add edge flanges and other useful sheet metal features. Sheet metal is frequently used in building both products and manufacturing machinery. Synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word. 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 relief cut need to lay a flat pattern of a sheet metal part with a flange with a cut because it is not full length of the original face. Not shown scroll down in property manager is an auto relief setting that controls how corners and relief cuts are handled. To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend. Improper bending of sheet metal can cause material flow problems in soft material and fracturing in hard materials.

To change the type and size of a relief cut for a feature bend. In the corner relief propertymanager under scope select the sheet metal body to which to apply the corner relief. Bend relief and collars near pierced areas strengthen sheet metal parts. For example when you have a sketched bend in the featuremanager design tree the sketched bend feature is the sheet metal feature and sketchbend is the individual bend that is absorbed in the sketched bend feature.

Under corners click collect all corners to list all corners in the sheet metal body. 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. When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to rip and tear. Click corner relief sheet metal toolbar or insert sheet metal corner relief.

In general a minimum bend relief is equal to the material thickness plus the inside bend radius. Relief cuts relief cuts help parts fall closer to design intent to avoid overhangs and tearing at bends. Sheet metal fabrication is the process of forming parts from a metal sheet by punching cutting stamping and bending.