Bending Relief For Sheet Metal

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

Bending relief for sheet metal. See the picture on the side for an example. Protocase tech tip video. Each corner of the t is at risk of tearing if the relevant line segment is bent without proper bend relief. 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 rip and tear. Bending is a manufacturing process that produces a v shape u shape or channel shape along a straight axis in ductile materials most commonly sheet metal. Bending is one of the most common sheet metal fabrication operations. Do one of the following.

This shape can be visualized as bending one line segment in a t to the maximum depth permitted. Though bend relief lengths and widths vary between projects they all share a common goal. Bend radii minimum bend sizes. The flange which does not have relief will result in a greater amount of distortion or tearing of the adjacent material.

The force must exceed the material s yield strength to achieve a plastic deformation. 3d cad files are converted into machine code which controls a machine to precisely cut and form the sheets into the final part. Preventing tearing and part deformation during the bending process. In sheet metal a bend relief is an incision cut along the sides of a planned bend.

Choose create relief in the sheet metal menu. Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on. For better clarity see the picture below. Enter relief size by bend radius ratio or force bend reliefs.

In general a minimum bend relief is equal to the material thickness plus the inside bend radius. Bend relief is the notch that needs to be created for sheet metal bending. Click the create relief tool button on the sheet metal ribbon tab. Select an item see the note below.

This is done through the application of force on a workpiece. Quick video about bend radius watch more tech tip videos bend radii minimum bend sizes. Similarly insufficient bend radius may lead to brittle fracture failure of the sheet metal. Select a hard edge bend face flange face or 3d solid entire model.

Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. Bend relief and collars near pierced areas strengthen sheet metal parts. For better clarity see the picture below.