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Theoretical and Experimental Analyses of<br>Diameter Variation in Cold Wire Drawing

Bibliographic Information

Other Title
  • 引抜き棒線材の線径変化に関する解析的・実験的検討
  • ヒキヌキ ボウ センザイ ノ センケイ ヘンカ ニ カンスル カイセキテキ ジッケンテキ ケントウ

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Abstract

We investigate the effect of drawing conditions on the drawn diameter in cold wire drawing by Finite Element Method. The mechanism of diameter variation was elucidated including the elastic deformation of the die, undershoot, diameter thickening during drawing and unloading springback. Undershoot was caused by the separation of the bar from the die at the beginning of the bearing zone during drawing, and it was the main reason for the variation in the drawn diameter. The undershoot was induced by the plastic deformation at the surface of the bar. We considered that it is caused by the tensile virtual residual stress and drawing stress at the surface of the bar in the axial direction. Thus, applying a low-approach semiangle to reduce the diameter of the second die is an effective method to reduce the diameter variation in tandem pass drawing.

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Details

  • CRID
    1390001206499121152
  • NII Article ID
    130004488268
    10027963426
  • NII Book ID
    AN00135062
  • DOI
    10.9773/sosei.52.375
  • COI
    1:CAS:528:DC%2BC3MXltVylur0%3D
  • ISSN
    18820166
    00381586
  • NDL BIB ID
    11051500
  • Text Lang
    ja
  • Data Source
    • JaLC
    • NDL
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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