Relief Ratio Sheet Metal

D relief ratio part thickness the bend region is represented by the dark gray area of the diagram.

Relief ratio sheet metal.

6 shows when the ratio to thickness is used in a obround relief the width ratio has more influence on the shape of the relief than the length ratio. Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured. For a 3 width ratio when the part is 1 mm in thickness the width of the slot will be 3 mm. In general a minimum bend relief is equal to the material thickness plus the inside bend radius.

The higher the value the larger the size of the relief cut added during insertion of bends. The higher the value the larger the size of the relief cut added during insertion of bends. In the propertymanager under auto relief change the type of relief cut. When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to rip and tear.

163 solidworks sheet metal tutorial. Ratios are configured for the hard material condition. The value of the relief ratio must be between 0 05 and 2 0. Right click the sheet metal feature in the featuremanager design tree and select edit feature.

A 1 degree tolerance on all bend angles. 7 only affects the relief within a narrow margin. Sheet metal in solidworks sheet metal parts are generally used as enclosures for components or to provide support to other. When designing parts for laser cutting one should not make holes smaller than the thickness of the material.

User can configure the ratio based on the material. When starting a sheet metal part by creating a base flange feature one of the initial parameters along with sheet metal gauge and bend allowance are the auto relief settings. Examples of i tear ii obround and iii rectangle. This check computes inside bend radius and checks the ratio of bend radius to sheet thickness.

Auto relief types rectangular tear obround using understanding auto relief ratio cases when relief not working. The value of the relief ratio must be between 0 05 and 2 0. The value of the relief ratio must be between 0 05 and 2 0. The higher the value the larger the size of the relief cut added during insertion of bends.

To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend. When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to tear depending on the geometry.