ロール成形された正方形角形鋼管に生じる<br>切口変形の発生機構

DOI Web Site 被引用文献2件 参考文献8件

書誌事項

タイトル別名
  • Mechanism of Pipe End Deformation after Cutting of<br>Square Steel Pipe Formed by Roll Forming
  • ロール セイケイ サレタ セイホウケイ カクガタ コウカン ニ ショウジル キリクチ ヘンケイ ノ ハッセイ キコウ

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抄録

A square steel pipe is reshaped from a welded round pipe by roll forming. The pipe end deformation after cutting the square steel pipe was investigated by experiment and three-dimensional finite element simulation. Each direction of the residual stresses composed of longitudinal stress and in-plane shear stress becomes reverse with respect to the outer and inner surfaces, respectively. A large opening deformation arises at the back end of the product by the release of those residual stresses. The side part receives bending deformation in the surrounding area of the contact zone with a roll. The residual stresses composed of longitudinal stress and in-plane shear stress arise as a result of the reverse bending deformation downstream of the roll center position. The absolute value of residual stress decreases as the initial wall thickness decreases.

収録刊行物

  • 塑性と加工

    塑性と加工 52 (609), 1083-1087, 2011

    一般社団法人 日本塑性加工学会

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