Abstract
Multi-Point Hydroforming (MPHF) is a recently developed hybrid process. An experimental set up has been designed and created by the authors in order to further investigate this new process’s potentialities for creating complex parts and different geometries using the same tools. Moreover, finite element simulations have been performed to determine the influence of the process parameters, namely the effect of shapes and the density of the reconfigurable die’s punches and the contribution of the insertion of an elastomeric membrane (commonly called interpolator) between the die and the blank sheet. The FE analysis and the experimental results have shown that MPHF is a very promising process: As a matter of fact, several parts with different shapes have been successfully obtained using the same tools. In addition, the use of the elastomeric interpolator has considerably improved the quality of the formed parts by eliminating the geometric defect called ‘dimples’ which is caused by the tips of the reconfigurable die’s punches and thus generating a better distribution of residual stresses in the manufactured parts.
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Acknowledgements
This work is partially supported by the ‘Ministère de la Recherche Scientifique’ (SERST), LAB-MA 05. The authors also gratefully acknowledge the helpful comments and suggestions of the reviewers, which have improved the presentation.
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Gahbiche, M.A., Boudhaouia, S., Ben Salem, W. (2019). Effect of the Interpolator Properties During the Multi-Point Hydroforming Process (MPHF). In: Benamara, A., Haddar, M., Tarek, B., Salah, M., Fakher, C. (eds) Advances in Mechanical Engineering and Mechanics. CoTuMe 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-19781-0_20
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DOI: https://doi.org/10.1007/978-3-030-19781-0_20
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