Title page for etd-0725114-203659


[Back to Results | New Search]

URN etd-0725114-203659
Author Ren-kai Wu
Author's Email Address No Public.
Statistics This thesis had been viewed 5353 times. Download 19 times.
Department Mechanical and Electro-Mechanical Engineering
Year 2013
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Study on Hydraulic Compound Forming of Rectangular Tubes
Date of Defense 2014-07-22
Page Count 110
Keyword
  • Preforming
  • Rectangular tube
  • Compound process
  • Tube hydroforming
  • Abstract Lightweight and high-strength tubes have been widely used in automobile industry and other various fields recently, especially rectangular tubes. Compound processes involved hydroforming and crushing are used in manufacturing a rectangular cross-section tube of aluminum alloys AA6061-O. It is known that the internal pressure and the clamping forces of the die needed in compound process are much less than those in the expansion process.
      In this study, a self-designed hydroforming test machine with a 30MPa of internal pressure and a capacity of 40 tons of axial feeding is used. Both of expansion and compound process tests will be conducted. The compound process is divided into directly crushing and crushing after preforming. A finite element simulation software DEFORM 2D is used to establish compound process analytical models with consideration of material setting, internal pressure, moving die feeding rate, and die shape. From the simulation results, thickness distribution, clamping force and forming pressure are discussed. Finally, experimental results will be compared with simulation results to verify the applicability of the finite element models.
    Advisory Committee
  • Rong-Shean Lee - chair
  • J.N. Aoh - co-chair
  • Quang-Cherng Hsu - co-chair
  • Jinn-Jong Sheu - co-chair
  • Yeong-Maw Hwang - advisor
  • Files
  • etd-0725114-203659.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2014-09-01

    [Back to Results | New Search]


    Browse | Search All Available ETDs

    If you have more questions or technical problems, please contact eThesys