Summary
Flange wrinkling in axisymmetrical deep-drawing occurs as a result of compressive circumferential stresses and it is an undesirable mode of deformation. Flange does not the table plastially buckles into a number of waves, endangering the success of the process and the quality of the product. Wrinkling can be prevented by the use of blank-holders constraining the plastic flow of the material.
In the present work, experiments are conducted to study the mode of plastic deformation and to compare with theoretical results. An analysis is developed based on the plasticity theory using the energy approach. It is found that wrinkling takes place when the plastic work associated with radial-drawing is greater then that in wrinkling. Based on the number of waves, the blank-holder load can be computed to prevent wrinkling.
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References
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© 1981 The Department of Mechanical Engineering, University College of Swansea
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Kaftanoglu, B. (1981). Plastic Analysis of Flange Wrinkling in Axisymmetrical Deep-Drawing. In: Alexander, J.M. (eds) Proceedings of the Twenty-First International Machine Tool Design and Research Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-05861-7_4
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DOI: https://doi.org/10.1007/978-1-349-05861-7_4
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-05863-1
Online ISBN: 978-1-349-05861-7
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