Title page for etd-0716118-094020


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URN etd-0716118-094020
Author Nien-Ying Chiang
Author's Email Address No Public.
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Department Mechanical and Electro-Mechanical Engineering
Year 2017
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Feasibility Analysis of Hole Flange Forming and Nut Inlaying on Flat Sheets
Date of Defense 2018-07-12
Page Count 131
Keyword
  • Sheet metal forming
  • Nut inlaying
  • Finite element analysis
  • Hole flanging
  • Abstract This study is to investigate the formability of round hole flanging on a flat sheet and nut inlaying in the formed product after hole flanging. The materials used are stainless steel SUS304 and aluminum alloy 6061 sheets. The hole flanging simulations are conducted using a finite element analysis software "DEFORM 3D". With three different punch shapes , different bottom die hole diameters and different bottom die corner radius , the punch load and the dimension of flanged products are discussed. The results show that the punch shape, the bottom die hole diameter and bottom die corner radius effect on the forming load, the curved contour of the round hole flange, and the parallel side length. In addition, the simulation of the nut inlaying after the hole flanging simulation result.
    Finally, experiments of flat hole flange forming and nut inlaying are carried out to verify the applicability of the simulation model. The results show that the punch shapes, bottom die hole diameter and bottom die corner radius have significant effects on the round hole flange. The different of the maximum load of the punch between simulation and experimental are less than 7%. Experiments of the nut inlaying after the hole flange show that for stainless steel material 304, a load of 13kN is needed to insert the nut into the round hole flange. But the load is large enough to make the nut deform. For aluminum alloy A6061-T6 sheets only 4kN is needed to inlay the nut into the round hole flange. For aluminum alloy A6061-O sheets 3kN is needed to inlay the nut into the hole flange. No plastic deformation occurred on the nut.
    Advisory Committee
  • Woei-Shyan Lee - chair
  • Aoh, Jong-Ning - co-chair
  • Yeh, Wei-Ching - co-chair
  • Fuh-Kuo,Chen - co-chair
  • Hwang, Yeong-Maw - advisor
  • Files
  • etd-0716118-094020.pdf
  • Indicate in-campus at 2 year and off-campus access at 3 year.
    Date of Submission 2018-08-16

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