Relief Cuts In Sheet Metal

To change the type of relief cut for all bends.

Relief cuts in sheet metal.

Not shown scroll down in property manager is an auto relief setting that controls how corners and relief cuts are handled. Right click the sheet metal feature in the featuremanager design tree and select edit feature. Relief cuts help parts avoid overhangs and tearing at bends. Bend relief synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word.

In the propertymanager under auto relief change the type of relief cut. Options in basic sheet metal base flange tab. One benefit of a bend relief is that it makes the part easier to produce. To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.

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. When designing parts for laser cutting one should not make holes smaller than the thickness of the material. Bends in sheet metal are manufactured using sheet metal brakes.

In general a minimum bend relief is equal to the material thickness plus the inside bend radius. Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured. If you select rectangular or obround specify the relief ratio.