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Research on cross-sectional deformation of double-ridged rectangular tube during H-typed rotary draw bending process

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Abstract

Based on the ABAQUS/Explicit, a three-dimensional elastic–plastic finite element model of the H96 brass double-ridged rectangular tube (DRRT) during H-typed rotary draw bending (RDB) was established and its reliability was validated by an experiment. With the model, distribution characteristic of cross-sectional deformation and effects of clearance and friction coefficient between tube and dies and core number on it were studied. The results show that the maximum cross-sectional height distortion ratio appears at the bending angle 60°. And the maximum cross-sectional width distortion ratio between side walls, as well as side walls of the ridge grooves, appears at the bending angle 80° and 60°, respectively. In addition, retracting mandrel has a great effect on the cross-sectional height distortion, but its influence on the cross-sectional width distortion can be ignored. And the maximum cross-sectional distortion ratio initially increases with increasing of clearance between tube and mandrel c m and friction coefficient μ b between tube and bending die, and then decreases with their increase, and initially decreases with the increase of core number N, and then increases with increasing of N. Moreover, the reasonable value of N is taken as 4.

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Authors and Affiliations

  1. State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, 710072, China

    Yuanhai Xiao, Yuli Liu & He Yang

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  1. Yuanhai Xiao
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  2. Yuli Liu
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  3. He Yang
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Correspondence to Yuli Liu.

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Xiao, Y., Liu, Y. & Yang, H. Research on cross-sectional deformation of double-ridged rectangular tube during H-typed rotary draw bending process. Int J Adv Manuf Technol 73, 1789–1798 (2014). https://doi.org/10.1007/s00170-014-5968-3

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  • DOI: https://doi.org/10.1007/s00170-014-5968-3

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