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Ultrasmooth Bar and Wire Formed by Drawing with Protrusion Die

Bibliographic Information

Other Title
  • 微小段付きダイス伸線による棒線材の超平滑化
  • ビショウ ダンツキ ダイスシンセン ニ ヨル ボウ センザイ ノ チョウヘイカツカ

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Abstract

Recently, smooth bar and wire surfaces for office automation and automobile industry have been required to achieve high fatigue strength. In a conventional process, the drawn bar surfaces are smoothed by additional processes, such as grinding and polishing. However, these processes results in a higher production cost and a lower productivity. To produce ultrasmooth bars by only drawing, a new die was developed and evaluated. The new die had protrusions with hights of 20 - 60 μm in the bearing area. The protrusion die induced high contact pressure and shearing strain on the surface of the drawn bar. In this research, the carbon steel and aluminum bars were drawn using the new die. As a result, surface roughness under the maximum height of irregularities 1 μm was achieved using the new designed die.

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Details

  • CRID
    1390001206499122304
  • NII Article ID
    130004488267
    10027963419
  • NII Book ID
    AN00135062
  • DOI
    10.9773/sosei.52.370
  • COI
    1:CAS:528:DC%2BC3MXltVylurw%3D
  • ISSN
    18820166
    00381586
  • NDL BIB ID
    11051477
  • Text Lang
    ja
  • Data Source
    • JaLC
    • NDL
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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