Prior sheet buckling leading to wrinkling formation in a gas forming a V-trough with wavy bottom

Shyong Lee, Jung Sung Tang, Chun Lin Chu

研究成果: 雜誌貢獻期刊論文同行評審

4 引文 斯高帕斯(Scopus)

摘要

When the amount of stretching strain exceeds material's intrinsic capability in gas forming a complex shape metallic sheet, gas pressurization operation can fail due to sheet material's perforation. A hot-bent assisted gas forming method for shaping a long V-trough with deep bottom of longitudinal wavy shape is proposed for obtaining the product with harmless wrinkle and relatively uniform thickness. This method consists of three sequential actions - an instant hot V-shape bending together with die closing followed by controlled pressurized gas blowing for a period of time. For this method, the depth of hot bending is varied as a parameter to generate pre-forms bearing various contours which consequently determine wrinkling situation in the subsequent gas forming product. Two groups of specimens differing in sheet size are adopted. Regular AA5052 (coarsely grained) and superplastic grade AA5083 (fine grained) alloys are used for experimental works.

原文???core.languages.en_GB???
頁(從 - 到)101-106
頁數6
期刊Journal of Manufacturing Processes
21
DOIs
出版狀態已出版 - 2016

指紋

深入研究「Prior sheet buckling leading to wrinkling formation in a gas forming a V-trough with wavy bottom」主題。共同形成了獨特的指紋。

引用此