Sheet Metal Relief Cuts

Overhangs become more prominent for thicker parts with a smaller bend radius and may even be as large as the material s thickness.

Sheet metal relief cuts.

Click corner relief sheet metal toolbar or insert sheet metal corner relief. Sheet metal parts may have sharp corners but designing a fillet of the material s thickness will make parts more cost effective. There are two things that can be done to reduce the risk of sheet metal tearing. In the propertymanager under auto relief change the type of relief cut.

In general a minimum bend relief is equal to the material thickness plus the inside bend radius. The split line command in the surfaces ribbon or inserting holes and cuts can be used to control profiles of each side prior to the convert to sheet metal function see figure 4. The width of the relief should be a material thickness or greater preferably a material thickness 1 64. Relief cuts relief cuts help parts fall closer to design intent to avoid overhangs and tearing at bends.

Right click the sheet metal feature in the featuremanager design tree and select edit feature. Convert to sheet metal with split line to control one flange. To change the type of relief cut for all bends. When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to rip and tear.

Bend relief synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word. Figure c shows a bend relief cut into the part again the depth of the relief should be greater than the radius of the bend. In the corner relief propertymanager under scope select the sheet metal body to which to apply the corner relief. Relief cuts help parts avoid overhangs and tearing at bends.

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. To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend. Under corners click collect all corners to list all corners in the sheet metal body. 4 forming near holes when a bend is made too close to a hole the hole may become deformed.