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Round-to-channel section extrusion through linearly converging die: a three-dimensional analysis

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Abstract

Metal flow in the extrusion process is an important factor in controlling the mechanical properties of the extruded products. It is, however, difficult to predict the metal flow in three-dimensional extrusion of sections due to the involvement of re-entrant corners. The present work is an attempt to find an upper bound solution for the extrusion of channel section from round billet through the taper die. The rigid-perfectly plastic model of the material is assumed, and the spatial elementary rigid region (SERR) technique is presented for which the kinematically admissible velocity field is found out by minimizing the plastic dissipation of power. The presented analysis allows for specification of process control parameters and their relation to extrusion load, equivalent die angle, reduction ratios and friction factor.

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Authors and Affiliations

  1. Department of Mechanical Engineering, A.B.I.T., Cuttack, 753 012, Orissa, India

    R. K. Sahoo

  2. Department of Mechanical Engineering, BOSE, Cuttack, 753007, Orissa, India

    P. R. Samantaray

  3. Department of Mechanical Engineering, N.I.T., Rourkela, 769 008, Orissa, India

    S. K. Sahoo

  4. Department of Mechanical Engineering, I.G.I.T., Sarang, 759 146, Orissa, India

    B. Sahoo

  5. Department of Mechanical Engineering, K.I.I.T., Bhubaneswar, 751 024, Orissa, India

    P. K. Kar

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  1. R. K. Sahoo
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  2. P. R. Samantaray
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  3. S. K. Sahoo
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  4. B. Sahoo
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  5. P. K. Kar
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Correspondence to S. K. Sahoo.

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Sahoo, R.K., Samantaray, P.R., Sahoo, S.K. et al. Round-to-channel section extrusion through linearly converging die: a three-dimensional analysis. Int J Adv Manuf Technol 41, 677–683 (2009). https://doi.org/10.1007/s00170-008-1511-8

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  • DOI: https://doi.org/10.1007/s00170-008-1511-8

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