Sheet Metal Relief Cuts

Bends in sheet metal are manufactured using sheet metal brakes.

Sheet metal relief cuts.

Relief cuts help parts avoid overhangs and tearing at bends. You can add a corner relief to a single sheet metal body. Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured. Not shown scroll down in property manager is an auto relief setting that controls how corners and relief cuts are handled.

When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to rip and tear. There are two things that can be done to reduce the risk of sheet metal tearing. Click corner relief sheet metal toolbar or insert sheet metal corner relief. In the corner relief propertymanager under scope select the sheet metal body to which to apply the corner relief.

Sheet metal parts may have sharp corners but designing a fillet of the material s thickness will make parts more cost effective. 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. When designing parts for laser cutting one should not make holes smaller than the thickness of the material. To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.

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. Options in basic sheet metal base flange tab. First utilize minimal bend radius of internal bend radius equal to material thickness. Under corners click collect all corners to list all corners in the sheet metal body.

The width of the relief should be a material thickness or greater preferably a material thickness 1 64. Bend relief cut into the part again the depth of the relief should be greater than the radius of the bend. A 1 degree tolerance on all bend angles.