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  • 1.
    El-Amine, Karim
    et al.
    Örebro University, School of Science and Technology. Suzuki Garphyttan AB, Garphyttan, Sweden.
    Larsson, Joakim
    Örebro University, School of Science and Technology. Department of Mechanical Engineering.
    Pejryd, Lars
    Örebro University, School of Science and Technology. Department of Mechanical Engineering.
    Experimental comparison of roller die and conventional wire drawing2018In: Journal of Materials Processing Technology, ISSN 0924-0136, E-ISSN 1873-4774, Vol. 257, p. 7-14Article in journal (Refereed)
    Abstract [en]

    In this work, the application of roller dies as an alternative to conventional dies in the wire drawing process – claimed in earlier works to offer many advantageous improvements – is evaluated. To this end, experimental procedures using a single stage drawing machine were conducted, drawing low and medium carbon steel wires using both roller dies and conventional dies. The two reduction processes were compared with respect to drawing force and the resulting wire temperature. Also the mechanical properties of the drawn wires were investigated. The obtained results have not shown any large differences between the two processes, and the main improvement using the roller die method was a better wire surface. This advantage was counteracted with downsides including higher wire temperature and lower strain at fracture.

    Moreover, a formula to theoretically calculate drawing force for the conventional drawing process was modified and used to calculate drawing force for the two reduction steps in the roller die cassette. The results showed that the proportion of inhomogeneous deformation was much higher in the rolling process as compared to the conventional process.

    In view of the outcomes in this work, the alternative of drawing wire through roller dies was not considered to be offering more improvements with respect to the conventional drawing method.

  • 2.
    El-Amine, Karim
    et al.
    Örebro University, School of Science and Technology.
    Pejryd, Lars
    Örebro University, School of Science and Technology.
    Study and optimization of changeover procedures in wire drawing2016In: 7th Swedish Production Symposium (SPS 16), 2016Conference paper (Refereed)
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