Choose create relief in the sheet metal menu.
Bend relief sheet metal.
Preventing tearing and part deformation during the bending process.
Improper bending of sheet metal can cause material flow problems in soft material and fracturing in hard materials.
In general a minimum bend relief is equal to the material thickness plus the inside bend radius.
Click the create relief tool button on the sheet metal ribbon tab.
As per sheet metal design thumb rules the depth of bend relief should be greater than or equal to the inside bend radius of the bend and the width of the bend relief should be the same as the sheet metal thickness or more.
Lack of proper bend reliefs may cause tearing of the material due to localized stresses.
The default shape view is replaced by the relief view and editing tools.
The flange which does not have relief will result in a greater amount of distortion or tearing of the adjacent material.
You can view how the corner treatment impacts the folded sheet metal body and how it carries over to the flat pattern.
Enter relief size by bend radius ratio or force bend reliefs auto auto.
You can apply corner treatments to a folded sheet metal body that will persist in the flattened state.
To display the bend relief of a bend sheet metal shape.
Bend relief synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word.
You can use the following corner treatment types.
Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on.
Normally that dimension is called out on the blueprint.
Select an item see the note below.
Sometimes this notch is used for parts with a large bend radius.
Another notch which we will call a relief notch is set back relieved a certain dimension from the edge.
The bigger the bend relief the easier it is to align over the end of the tooling.
If it is ok for the metal to rip the minimum bend relief is zero.
One benefit of a bend relief is that it makes the part easier to produce.
During the bending of sheet metal material around the bend tends to stretch and deform.
This article looks at two different tips associated with ensuring you have high quality sheet metal in finished products.
This is to keep the material from fracturing while forming the metal.
With the bend shape selected at the intellishape editing level click the handle toggle if necessary to switch to display of the bend relief tools.
Corner reliefs and bend transitions.
To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.
In sheet metal a bend relief is an incision cut along the sides of a planned bend.
For example if you make a partial flange as above using all the defaults the software makes relief cuts at the end of the bends as shown to the right.
Though bend relief lengths and widths vary between projects they all share a common goal.