In bottom pressing, or bottoming, the punch presses the workpiece against the bottom surface area of the V or U-formed die, which defines the final bend angle. This technique generates specific bends and minimizes the inclination for springback inside the workpiece due to the appliance of bigger bending pressure. It https://elliot0ln89.wikicorrespondence.com/4200977/a_review_of_stamping_iron_pin_hs_code