微小段付きダイス伸線による棒線材の超平滑化

DOI Web Site 被引用文献2件 参考文献6件

書誌事項

タイトル別名
  • Ultrasmooth Bar and Wire Formed by Drawing with Protrusion Die
  • 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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抄録

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.

収録刊行物

  • 塑性と加工

    塑性と加工 52 (602), 370-374, 2011

    一般社団法人 日本塑性加工学会

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