Relief Ratio Sheet Metal

Select an item see the note below.

Relief ratio sheet metal.

Bend radii minimum bend sizes. 7 only affects the relief within a narrow margin. 3d cad files are converted into machine code which controls a machine to precisely cut and form the sheets into the final part. User can configure the ratio based on the material.

Once the base flange feature is created this setting will be. The higher the value the larger the size of the relief cut added during insertion of bends. Protocase tech tip video. The width of the relief cut and the depth it extends past the bend will be determined by relief ratio part thickness.

The value of the relief ratio must be between 0 05 and 2 0. Since commercial sheet metal bending can be done with less concern for stresses caused during forming operation the radius can be near zero for thin sheet metal. Ratios are configured for the hard material condition. The length ratio 3 2 fig.

The minimum bend radius data shown in these charts is measured to the inside of the bend. If you select rectangular or obround specify the relief ratio. Sheet metal fabrication is the process of forming parts from a metal sheet by punching cutting stamping and bending. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.

In general a minimum bend relief is equal to the material thickness plus the inside bend radius. Select a hard edge bend face flange face or 3d solid entire model. To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend. Enter relief size by bend radius ratio or force bend reliefs.

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. Type smreliefcreate in the command bar. The value of the relief ratio must be between 0 05 and 2 0. Click the create relief tool button on the sheet metal ribbon tab.

Examples of i tear. The higher the value the larger the size of the relief cut added during insertion of bends. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. Choose create relief in the sheet metal menu.

When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to rip and tear. Quick video about bend radius watch more tech tip videos bend radii minimum bend sizes. For a 3 width ratio when the part is 1 mm in thickness the width of the slot will be 3 mm. Sheet metal in solidworks sheet metal parts are generally used as enclosures for components or to provide support to other.

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. This check computes inside bend radius and checks the ratio of bend radius to sheet thickness.