In Bottom pressing, or bottoming, the punch presses the workpiece versus the bottom surface of a V or U-formed die, which defines the ultimate bend angle. This technique provides exact bends and lowers the tendency for springback inside the workpiece on account of the appliance of greater bending force. Metal https://stephen2sv12.mybuzzblog.com/11368826/a-secret-weapon-for-iron-bridge-hot-stamping-machine