A Comprehensive Thinning Analysis for Hydrodynamic Deep Drawing Assisted by Radial Pressure

  • Vahid ModanlooEmail author
  • Abdolhamid Gorji
  • Mohammad Bakhshi-Jooybari
Research Paper


Aiming to achieve a perfect concept of thinning in hydrodynamic deep drawing assisted by radial pressure (HDDRP), the formability of pure copper thick sheet was investigated. Many process parameters affect the quality of the product during HDDRP. The purpose of the present study is to understand simultaneously the effect of process parameters including maximum fluid pressure, punch velocity, friction coefficient between punch and blank, friction coefficient between die and blank, punch nose radius, die entrance radius, the gap between die and blank holder and prebulging pressure on the sheet thinning. The process was initially simulated via explicit finite element (FE) code ABAQUS. To verify the simulation results, the copper sheet was formed by experiment. After experimental validation, the FE model was used for performing a set of experiments designed by Taguchi L27 orthogonal array. Signal-to-noise ratio and the ANOVA techniques were used to calculate the importance and contribution of each parameter. Results reveal that a higher corner radius of the punch and a higher die entrance radius lead to an increase in thickness reduction at the critical region of the final cup. Moreover, optimization results represent an improvement of 11% in thinning compared to conventional results.


Hydrodynamic deep drawing Radial pressure Thinning ratio Finite element simulation Taguchi method 


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Copyright information

© Shiraz University 2018

Authors and Affiliations

  • Vahid Modanloo
    • 1
    Email author
  • Abdolhamid Gorji
    • 2
  • Mohammad Bakhshi-Jooybari
    • 2
  1. 1.Mechanical Engineering DepartmentUrmia UniversityUrmiaIran
  2. 2.Mechanical Engineering DepartmentBabol University of TechnologyBabolIran

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