Wipe bending or edge bending is another way to bend sheet metal edges.
Bending cross sectional area in sheet metal.
As a result the wipe die also determines the bend s inner radius.
The slack between the wipe die and the punch plays an important role in getting a good result.
2d x 20 therefore.
In general as reduction of area increases the minimum allowable bend radius for a sheet ma terial decreases.
Total elongation and reduction of area both increase with increasing cross sectional area of the specimen.
It is important to make sure that the sheet is properly pushed onto the wipe die.
F stretch forming force lbs ys material yield strength psi uts ultimate tensile strength of the material psi a cross sectional area of the workpiece in2 forces needed to bend sheet metal.
Let d the debth of the gutter let x the width of the gutter.
If the cross sectional area is 48 square inches find the depth of the gutter.
For materials with poisson s ratios ν displaystyle nu close to 0 3 the shear correction factor for a rectangular cross section is approximately.
F ys uts 2 a.
Percent elongation at frac ture decreases with increasing gage length because of localized necking in the specimen.
Stress distribution through the thickness of the part.
Sort of like this the width is x d d.