Relief Ratio Sheet Metal

Quick video about bend radius watch more tech tip videos bend radii minimum bend sizes.

Relief ratio sheet metal.

In general a minimum bend relief is equal to the material thickness plus the inside bend radius. Examples of i tear. Select a hard edge bend face flange face or 3d solid entire model. User can configure the ratio based on the material.

Right click the sheet metal feature in the featuremanager design tree and select edit feature. 3d cad files are converted into machine code which controls a machine to precisely cut and form the sheets into the final part. The minimum bend radius data shown in these charts is measured to the inside of the bend. The value of the relief ratio must be between 0 05 and 2 0.

Once the base flange feature is created this setting will be. 7 only affects the relief within a narrow margin. Ratios are configured for the hard material condition. Type smreliefcreate in the command bar.

In the propertymanager under auto relief change the type of relief cut. Sheet metal fabrication is the process of forming parts from a metal sheet by punching cutting stamping and bending. Select an item see the note below. For a 3 width ratio when the part is 1 mm in thickness the width of the slot will be 3 mm.

Enter relief size by bend radius ratio or force bend reliefs. If you select rectangular or obround specify the relief ratio. The higher the value the larger the size of the relief cut added during insertion of bends. This check computes inside bend radius and checks the ratio of bend radius to sheet thickness.

Sheet metal in solidworks sheet metal parts are generally used as enclosures for components or to provide support to other. The value of the relief ratio must be between 0 05 and 2 0. The length ratio 3 2 fig. Bend radii minimum bend sizes.

When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to rip and tear. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. 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. Do one of the following.

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. Choose create relief in the sheet metal menu. The width of the relief cut and the depth it extends past the bend will be determined by relief ratio part thickness. To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. Click the create relief tool button on the sheet metal ribbon tab.