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A novel lubrication method for hydroforming of thin-walled aluminum alloy T-shaped tube

  • Xuefeng XuEmail author
  • Kongwei Wu
  • Yiwang Wu
  • Xiao Jie
  • Chunlin Fu
ORIGINAL ARTICLE
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Abstract

In this work, a novel lubrication approach for T-shaped tube hydroforming is developed to reduce the forming defects referred to the wrinkles that called intermediate semiring differential lubrication (ISDL), which reduced the dependence of the internal pressure and axial-feeding loading paths to make forming process easily. The T-shaped tube was divided into four zones: bulging zone, guiding zone, back zone, and middle back zone, and the ISDL method was to coat the bulging zone and whole or part of guiding zone with PTFE film and others with MoS2. Experimental results show that the ISDL method greatly reduced wrinkles in middle back zone of the T-shaped tube without wasting time to adjust the loading path again and again. Also, formulas related to the length and width for lubrication area of ISDL method was derived to guide the tube hydroforming process. The modified tribological performance by employing regional lubrication method improved the T-shaped tube hydroforming ability.

Keywords

T-shaped tube Tube hydroforming Lubrication method Lubrication area Intermediate semiring differential lubrication 

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Notes

Funding information

The study receives financial supports from the National Natural Science Foundation of China with Grant (No. 51405219) and the Key R&D Project in Jiangxi Province of China (No. 20165ABC28002).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Xuefeng Xu
    • 1
    Email author
  • Kongwei Wu
    • 1
  • Yiwang Wu
    • 1
  • Xiao Jie
    • 1
  • Chunlin Fu
    • 1
  1. 1.School of Aviation Manufacturing EngineeringNanchang Hangkong UniversityNanchangPeople’s Republic of China

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