Formability of a sheet metal in stretch bending operation when limited by localized necking is represented by forming limit diagram fld.
Bendability of sheet metal.
In the actual bending the thickness of the sheet metal is set and the width of the lower die slot is selected according to the thickness of the sheet metal.
If you want a sharp 90 bend tap along the crease with a mallet.
Mark a bend line and place the sheet metal on the edge of your bench.
Clamp the wood on top of the metal to the workbench.
In sheet metal forming localized necking and fracture are two primary modes of failure.
Finally bend the sheet up by hand to the angle desired.
Next place the wood parallel and slightly behind the bending line.
In this work bendability evaluation of three sheet metals a galvanized steel jac780y a stainless steel sus304 and a cold rolled steel spcc was precisely investigated using an acoustic.
Bendability of sheet metal is the characteristic degree to which a particular sheet metal part can be bent without failure.
The bendability of sheet metals often refers to the minimum die radius over which a sheet with a given thickness can be bent successfully without defects.
Experimental determination of the fld involves considerable testing and evaluation of test data.