The distance d is determined by the following equation.
Sheet metal bend relief cut.
Though bend relief lengths and widths vary between projects they all share a common goal.
Click a tool button on the sm relief toolbar.
The bigger the bend relief the easier it is to align over the end of the tooling.
The higher the value the larger the size of the relief cut added during insertion of bends.
Preventing tearing and part deformation during the bending process.
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A 1 degree tolerance on all bend angles.
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Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured.
The value of the relief ratio must be between 0 05 and 2 0.
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The width of the relief should be a material thickness or greater preferably a material thickness 1 64.
Bends in sheet metal are manufactured using sheet metal brakes.
4 forming near holes when a bend is made too close to a hole the hole may become deformed.
When designing parts for laser cutting one should not make holes smaller than the thickness of the material.
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In sheet metal a bend relief is an incision cut along the sides of a planned bend.
One benefit of a bend relief is that it makes the part easier to produce.
D relief ratio part thickness the bend region is represented by the dark gray area of the diagram.
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.
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.
Choose the relief type in the sheet metal relief menu.
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.
To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.
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Click the relief drop down button in sheet metal modify panel on the ribbon and select a relief type.
To choose the desired relief type do one of the following.
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During the bending of sheet metal material around the bend tends to stretch and deform.
