An Experimental and Simulation of Active Control of Springback Effects in Deep Drawing Processes

During deep drawing processes, the metal blank is radially drawn by mechanical action of the punch forcing the metal into a forming die. As a result, the workpiece goes through some work hardening where some residual energy is released in final stage which results in further deformation of the part (so called “springback”). This research paper is focused on development of a real-time control strategy to reduce springback effects in deep drawing. It reports on the results of the experimental study of springback in drawing and the parameters involved. In this regard, an experimental setup is designed and developed that is used for design of experiment study and simulation validation of the process. Design of experiment technique is utilized to systematically analyze the effects of the process parameters and their relative contribution in springback phenomenon. It is also used to validate process simulation model utilized to study performance of a control strategy developed to reduce springback.