To eliminate this a bend relief is added so the edge of the sheet metal is perpendicular to the bend.
Relief sheet metal.
When sheet metal makes a transition from a bend to a flat surface or to another bend it tends to rip and tear.
Each corner of the t is at risk of tearing if the relevant line segment is bent without proper bend relief.
Click the create relief tool button on the sheet metal ribbon tab.
Bends in sheet metal are manufactured using sheet metal brakes.
Synchronous sheet metal is pretty cool even cooler than just normal synchronous modeling if you ll excuse that word.
The model must have three bends where the bend lines meet.
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.
Bend relief and collars near pierced areas strengthen sheet metal parts.
Do one of the following.
Sheet metal parts with a minimum of 0 9mm to 20mm in thickness can be manufactured.
Similarly insufficient bend radius may lead to brittle fracture failure of the sheet metal.
When designing parts for laser cutting one should not make holes smaller than the thickness of the material.
Enter relief size by bend radius ratio or force bend reliefs.
Type smreliefcreate in the command bar.
In the corner relief propertymanager under scope select the sheet metal body to which to apply the corner relief.
In general a minimum bend relief is equal to the material thickness plus the inside bend radius.
Under corners click collect all corners to list all corners in the sheet metal body.
Preventing tearing and part deformation during the bending process.
Select an item see the note below.
Select a hard edge bend face flange face or 3d solid entire model.
Creates a corner relief where two bends meet.
Grain structure in the metal sheet is critical for avoiding cracks in sheet metal parts with lugs or tabs that are cut on.
This is due to excessive localized stresses from the work hardening forces imposed on the metal.
The corner relief is applied at the common intersection point of the bend lines.
Choose create relief in the sheet metal menu.
You can add a corner relief to a single sheet metal body.
A 1 degree tolerance on all bend angles.
See the picture on the side for an example.
Though bend relief lengths and widths vary between projects they all share a common goal.
