Punch Motion Curve in the Extrusion–Drawing Process to Obtain Circular Cups

Servo press technology is gaining attention because its punch motion curve offers greater formability than that of a conventional stamping press. This study investigated the effect curves on circular cup extrusion–drawing process. Various were analyzed, and optimal for application was determined. Both process spring back U-shaped sheet metal investigated. In process, (Case A) three servo (Cases B–D, strokes which differed from Case A by 0.5, 1.5, 2.5 mm, respectively) compared, particularly regarding coefficient friction The simulation analysis performed using software program DEFORM. set simulated parameters compared with experimental results. formability, shape, height, thickness, extrusion force–displacement curve, stress distribution, strain distribution analyzed design die required. Additionally, results to determine reliability precision DEFORM simulations. indicated resulted in shorter cup, stress, strain, need force. By contrast, taller cups, less strain. findings can serve as reference development presses.