Study on Thickness Distribution and Spring Back Phenomena of Sheet-Bulk Forming for Aluminum Alloy

• Main Authors: YE, CHAN-HONG, 葉展宏
• Other Authors: HSU, QUANG-CHERNG
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/70220663549864595342

碩士 === 國立高雄應用科技大學 === 機械工程系 === 105 === 　　With the improvement of process technology, Aluminum alloy is widely used in many industries. The function of aluminum alloy product gradually change to functional integration of product from a single function. It is important to study the formability and spring back phenomena of thick aluminum alloy sheet. 　　In this study, we used Deform 3D and Simufact.forming to simulate the sheet-bulk forming for thick aluminum alloy sheet. Mesh convergence analysis was conducted to find the optimal element size. Thickness distribution and spring back phenomena of the rectangular blank with round corners feature at process one was also investigated. Simulation results were compared to scanning file based on spring back phenomena. 　　The results are as follows: the optimal element size is 2 mm in the mesh convergence analysis. Compared to tetrahedral elements, solid-shell elements are suitable for analyzing sheet bulk metal forming process. Cross section near binder area of the x-axis and near quarter of keyboard of the y-axis area it has minimum spring back phenomena.