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.
Sheet metal relief.
Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on.
Extrude hole size position guidelines creating an extruded hole using a punching process requires extreme pressure force.
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Bend relief is provided at the end of bending edge in sheet metal design to avoid any crack tearing in the corner.
Another notch which we will call a relief notch is set back relieved a certain dimension from the edge.
During the bending of sheet metal material around the bend tends to stretch and deform.
In sheet metal a bend relief is an incision cut along the sides of a planned bend.
The selected items can be a 3d solid with sheet metal features a face or a hard edge of the solid.
One benefit of a bend relief is that it makes the part easier to produce.
Under corners click collect all corners to list all corners in the sheet metal body.
Click corner relief sheet metal toolbar or insert sheet metal corner relief.
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The flange which does not have relief will result in a greater amount of distortion or tearing of the adjacent material.
To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.
This is to keep the material from fracturing while forming the metal.
If a 3d solid is selected the command recognizes the places where corner or bend reliefs are needed and creates them automatically.
Bend relief and collars near pierced areas strengthen sheet metal parts.
In the corner relief propertymanager under scope select the sheet metal body to which to apply the corner relief.
Relief height is generally kept greater than two times of sheet thickness plus bend radius.
You can add a corner relief to a single sheet metal body.
Normally that dimension is called out on the blueprint.
If it is ok for the metal to rip the minimum bend relief is zero.
Preventing tearing and part deformation during the bending process.
In general a minimum bend relief is equal to the material thickness plus the inside bend radius.
