Numerical Simulation on Interfacial Creep Generation for Shrink-fitted Bimetallic Work Roll

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  • Noda Nao-Aki
    Department of Mechanical and Control Engineering, Kyushu Institute of Technology
  • Sano Yoshikazu
    Department of Mechanical and Control Engineering, Kyushu Institute of Technology
  • Takase Yasushi
    Department of Mechanical and Control Engineering, Kyushu Institute of Technology
  • Zhang Guowei
    Department of Mechanical and Control Engineering, Kyushu Institute of Technology
  • Sakai Hiromasa
    Department of Mechanical and Control Engineering, Kyushu Institute of Technology

Bibliographic Information

Other Title
  • スリーブ組立式圧延ロールの焼嵌め面に生じる界面クリープの数値シミュレーション
  • スリーブ クミタテシキ アツエン ロール ノ ヤキバメ メン ニ ショウジル カイメン クリープ ノ スウチ シミュレーション
Published
2019
Resource Type
journal article
DOI
  • 10.2355/tetsutohagane.tetsu-2018-117
Publisher
The Iron and Steel Institute of Japan

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Description

<p>The bimetallic work rolls are widely used in the roughing stands of hot rolling stand mills. The rolls are classified into two types; one is a single-solid type, and the other is a shrink-fitted assembled type consisting of a sleeve and a shaft. Regarding the assembled rolls, the interfacial creep sometimes appears between the shaft and the shrink-fitted sleeve. This interfacial creep means the relative displacement on the interface between the sleeve and the shaft. This creep phenomenon often causes damage to the roll such as shaft breakage due to fretting cracks. Although to clarify this creep mechanism is an important issue, experimental simulation is very difficult to be conducted. Since few studies are available, in this paper, the interfacial creep phenomenon is simulated by using the elastic finite element method (FEM) analysis. Here, the roll rotation is replaced by the road shift on the fixed roll surface. It is found that the interface creep can be explained as the accumulation of the relative circumferential displacement along the interface.</p>

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 105 (4), 411-417, 2019

    The Iron and Steel Institute of Japan

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