Relief Ratio Sheet Metal

Do one of the following.

Relief ratio sheet metal. Type smreliefcreate in the command bar. Click the create relief tool button on the sheet metal ribbon tab. Sheet metal in solidworks sheet metal parts are generally used as enclosures for components or to provide support to other. Once the base flange feature is created this setting will be.

7 only affects the relief within a narrow margin. Choose create relief in the sheet metal menu. If you select rectangular or obround specify the relief ratio. Enter relief size by bend radius ratio or force bend reliefs.

The minimum bend radius data shown in these charts is measured to the inside of the bend. 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. This check computes inside bend radius and checks the ratio of bend radius to sheet thickness. Select a hard edge bend face flange face or 3d solid entire model.

Ratios are configured for the hard material condition. 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.

Protocase tech tip video. Sheet metal fabrication is the process of forming parts from a metal sheet by punching cutting stamping and bending. 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.

The value of the relief ratio must be between 0 05 and 2 0. Quick video about bend radius watch more tech tip videos bend radii minimum bend sizes. Examples of i tear. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

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. User can configure the ratio based on the material. 3d cad files are converted into machine code which controls a machine to precisely cut and form the sheets into the final part. The length ratio 3 2 fig.

The value of the relief ratio must be between 0 05 and 2 0. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. Right click the sheet metal feature in the featuremanager design tree and select edit feature. In general a minimum bend relief is equal to the material thickness plus the inside bend radius.

In the propertymanager under auto relief change the type of relief cut. The higher the value the larger the size of the relief cut added during insertion of bends.