Experimental and numerical analysis of titanium microtube elliptical flaring

Weichao Wu*, Ying Huang, Rajiv Malhotra, Yongjun Wang, Jian Cao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Traditional tube flaring processes focuses on expanding one end of the tube without changing its cross-sectional shape. This paper presents a new two-step tube flaring process for expanding one end of a titanium alloy microtube while simultaneously changing its cross-sectional shape from circular to elliptical. Experiments were performed to investigate and verify this process. Furthermore, an analytical model was developed to analyze the forming process and investigate the relationship between punch feed and maximum plastic strain during the flaring process. The analysis shows that the two-step flaring process used is effective in expanding the circular cross section to an elliptical cross section without failure. It is also shown that the developed analytical model can predict the fracture of the tube end during the flaring process approximately. Finally, a FEM simulation was performed to further investigate the two-step flaring process.

Original languageEnglish (US)
Title of host publicationASME 2010 International Manufacturing Science and Engineering Conference, MSEC 2010
Pages669-676
Number of pages8
Volume1
DOIs
StatePublished - Dec 1 2010
EventASME 2010 International Manufacturing Science and Engineering Conference, MSEC 2010 - Erie, PA, United States
Duration: Oct 12 2010Oct 15 2010

Other

OtherASME 2010 International Manufacturing Science and Engineering Conference, MSEC 2010
CountryUnited States
CityErie, PA
Period10/12/1010/15/10

Keywords

  • Elliptical cross-section
  • Titanium alloy
  • Tube flaring

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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