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    大直徑ERW直縫焊管排輥成型的有限元模擬

    Study on FEM Simulation of Cage Forming of Large-sized ERW Straight-welded Pipe

    • 摘要: 采用大型非線性有限元軟件Marc對ERW直縫焊管的排輥成型過程進(jìn)行模擬,獲得了成型管坯形狀以及各機(jī)架截面處和沿板帶縱向的等效應(yīng)力與應(yīng)變場分布;分析了排輥成型面與管坯的接觸狀態(tài),為排輥成型焊管機(jī)組的孔型設(shè)計(jì)以及排輥調(diào)整提供了理論依據(jù)。

       

      Abstract: The cage forming process of ERW straight-welded pipe is simulated by means of the large-scale, nonlinear finite-element analysis software Marc. As a result, the shape of the formed pipe blank is obtained, and so are both the equivalent stress and the stress field distribution at the cross section of each individual roll stand and along the strip longitudinal direction. Moreover, the contact state between the cage roll shaping surface and the material is analyzed, which could provide theoretic reference for pass design and cage roll set up of the straight welded pipe mill.

       

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