Browse Publications Technical Papers 2020-01-0750
2020-04-14

Study of Spring-back Effects in Deep Drawing: Theory and Experiment 2020-01-0750

Deep drawing is a sheet metal forming process in which metal blank is radially drawn into a forming die by the mechanical action of the punch. Dimensional tolerances and their variations are an important aspects of quality control issues in this forming operation. In this regard, spring-back effect is an inherent phenomenon that directly affects the final dimensions of the part produced. This research work is focused on analysis and control of spring-back in deep drawing processes. It is mainly focused on design and implementation/simulation of control strategies to minimize that. In this regard, the impact of various process parameters such as lubrication, punch speed, punch and die nose radius, and blank holding force are studied through design of experiment methodology. In particular, this study is focused on design and development of various control strategies to minimize spring back in this process. An experimental set up is designed and developed to facilitate this research. This paper presents some of the experimental results obtained from this study.

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