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冷間据込み鍛造におけるねじりモーション付加による軸圧縮荷重の低減

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タイトル別名
  • Reduction of Axial Forging Load in Cold Upsetting with Torsion Die Motion

抄録

<p>To reduce axial forming load in upsetting process, upsetting process with cyclic torsion die motion was proposed. In the proposed upsetting process, cyclic torsion of torsional moment was simultaneously superposed with axial forming load during upsetting process. In this study, a cylindrical workpiece was twisted around the z-axis with an alternating amplitude angle of π/8 rad (22.5°) and a maximum rate of 0.05 rad/s (0.5 rpm) during upsetting with an axial compression speed of 0.1 mm/s. The maximum torsion frequency was 0.03 Hz. It was found that the axial forming load of the workpiece was reduced by approximately 5-40% in the forming conditions where torsion angle/axial stroke were larger than approximately 0.26 rad/mm.</p>

収録刊行物

  • 年次大会

    年次大会 2016 (0), G0400103-, 2016

    一般社団法人 日本機械学会

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