冷間据込み加工時の延性き裂発生条件に関する基礎検討 Ductile Fracture Criterion in Cold Upsetting

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著者

    • 志賀 聡 SHIGA Akira
    • 住友金属工業(株)総合技術研究所 Corporate Research and Development Laboratories, Sumitomo Metal Industries, Ltd.
    • 松井 直樹 MATSUI Naoki
    • 住友金属工業(株)総合技術研究所 Corporate Research and Development Laboratories, Sumitomo Metal Industries, Ltd.
    • 根石 豊 NEISHI Yutaka
    • 住友金属工業(株)総合技術研究所 Corporate Research and Development Laboratories, Sumitomo Metal Industries, Ltd.

抄録

In this study, we aim to quantitatively evaluate ductile crack initiation with equivalent plastic strain and stress triaxiality on cold upsetting. An investigation into the behavior of cracking on the surface in the cold upsetting of typical cold-forged steels of S45C was carried out with a crank press. To apply various amounts of stress and strain histories, the shape of the test specimen was changed. The stress and strain histories were calculated by the finite element method (FEM). The result shows that ductile crack initiation was determined by equivalent plastic strain and stress triaxiality. The workability limit was predicted by comparing the criteria for ductile crack initiation to the history of the equivalent plastic strain and stress triaxiality to determine the final forging from the material by cold forging.

収録刊行物

  • 塑性と加工

    塑性と加工 53(613), 150-154, 2012-02-25

    一般社団法人 日本塑性加工学会

参考文献:  20件中 1-20件 を表示

被引用文献:  1件中 1-1件 を表示

  • 鍛造

    久保木 功 , 丸茂 康男 , 北村 憲彦 , 吉田 佳典 , 藤川 真一郎 , 大津 雅亮 , 清水 透

    塑性と加工 54(631), 685-689, 2013-08-25

    J-STAGE 参考文献131件

各種コード

  • NII論文ID(NAID)
    10030144402
  • NII書誌ID(NCID)
    AN00135062
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00381586
  • NDL 記事登録ID
    023541653
  • NDL 請求記号
    Z17-218
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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