揺動鍛造条件が製品形状および表面硬度に及ぼす影響

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タイトル別名
  • Effect of Rotary Forging Conditions on Geometry and Surface Hardness of Product
  • ヨウドウ タンゾウ ジョウケン ガ セイヒン ケイジョウ オヨビ ヒョウメン コウド ニ オヨボス エイキョウ

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抄録

<p>In this paper, a basic investigation of rotary forging was carried out by experiment and FEM analysis to clarify the mechanism of surface hardening by rotary forging. We used columnar low-carbon steel as a workpiece. As a result, we found rotary forging produces a hard surface because of surface expansion and submicron fine grains. Ratio of minimum principal stress to von Mises stress is less than-1. 2 was proposed as the new criterion for surface on the basis of the result of the minimum principal stress distribution in a hourglass-shaped workpiece. We applied this criterion to a rotor and confirmed that the results correspond with those of FEM analysis.</p>

収録刊行物

  • 塑性と加工

    塑性と加工 58 (672), 60-65, 2017

    一般社団法人 日本塑性加工学会

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