In panel bending, the sheet is positioned beneath blank-holder tools, which depress and clamp the workpiece in place, with material protruding on the opposite side. The
Sheet Metal Cutting and Folding in Coimbatore blades of the machine then move from above and below to fold the metal. Corner formers, ironworkers, notchers, orbital formers, and roll benders are some of the further technologies addressed in this field. Applying force to a workpiece is how this is accomplished. To cause a plastic deformation, the force applied must be greater than the material's yield strength. Only after that can you expect a bent that will persist.