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<p>During deep drawing processes, the metal blank is radially drawn by the 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 the final stage which causes some undesired deformation of the part (so-called “spring-back”). This paper is focused on the development of a real-time control strategy to reduce spring-back effects in deep drawing. It reports on the results of the design of an experimental study of spring-back in deep drawing used to validate a process simulation model. This model is used to study the performance of a control strategy developed to reduce spring-back and the results are reported.</p>

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Active control of spring-back effects in deep drawing processes: theory and experiment

  • 期刊论文

  • 发表日期：

    2025年4月4日

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  • Ramzi Wanis Said,
  • Mostafa Mehrabi

摘要

During deep drawing processes, the metal blank is radially drawn by the 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 the final stage which causes some undesired deformation of the part (so-called “spring-back”). This paper is focused on the development of a real-time control strategy to reduce spring-back effects in deep drawing. It reports on the results of the design of an experimental study of spring-back in deep drawing used to validate a process simulation model. This model is used to study the performance of a control strategy developed to reduce spring-back and the results are reported.