Click a tool button on the sm relief toolbar.
Sheet metal bend relief cut.
In general a minimum bend relief is equal to the material thickness plus the inside bend radius.
D relief ratio part thickness the bend region is represented by the dark gray area of the diagram.
4 forming near holes when a bend is made too close to a hole the hole may become deformed.
In sheet metal a bend relief is an incision cut along the sides of a planned bend.
Choose the relief type in the sheet metal relief menu.
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The distance d is determined by the following equation.
Sheet metal bend relief modify a bend relief the small cut made where the bend end meets a free edge and by specifying a shape and either a depth and relief width scale or specific bend relief depth.
The bigger the bend relief the easier it is to align over the end of the tooling.
Figure c shows a bend relief cut into the part again the depth of the relief should be greater than the radius of the bend.
When designing parts for laser cutting one should not make holes smaller than the thickness of the material.
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Though bend relief lengths and widths vary between projects they all share a common goal.
One benefit of a bend relief is that it makes the part easier to produce.
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The value of the relief ratio must be between 0 05 and 2 0.
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.
A 1 degree tolerance on all bend angles.
Click the relief drop down button in sheet metal modify panel on the ribbon and select a relief type.
If it is ok for the metal to rip the minimum bend relief is zero.
Preventing tearing and part deformation during the bending process.
Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured.
To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.
The higher the value the larger the size of the relief cut added during insertion of bends.
You are also able to select to extend the bend relief in the opposite direction in the case of a flange for example illustrations below.
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