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Formability of thin-walled commercial pure titanium tube upon rotary draw bending
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Chengdu Aircraft Industry (Group) Corporation Ltd.,Northwestern Polytechnical University,,Northwestern Polytechnical University,Northwestern Polytechnical University

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TG386.3+1

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    Abstract:

    Under variations of bending radii and material properties, the multi-defect constrained formability of thin-walled commercial pure titanium (CP-Ti) tube is identified to explore the forming potential of this advanced lightweight material via explicit/implicit 3D-FE models and the experiments. The major results show that: 1) The variations of hardening exponents, thickness anisotropy exponent and Young’s modulus, have great effects on bending formability; 2) Compared with the wall thinning and cross-section deformation, the wrinkling instability is the dominant defect to restrain the bending formability of the large diameter thin-walled (LDTW) CP-Ti tube. The bending formability of CP-Ti tube, especially the anti-wrinkling capability, can be improved at elevated temperatures.

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[LI Guangjun, yangheng, Xu xudong, LI Heng, YANG He. Formability of thin-walled commercial pure titanium tube upon rotary draw bending[J]. Rare Metal Materials and Engineering,2018,47(1):26~32.]
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History
  • Received:February 02,2016
  • Revised:June 29,2016
  • Adopted:July 15,2016
  • Online: February 07,2018
  • Published: