Transactions of Materials and Heat Treatment

Title：Spinning process for thin-walled spherical part

Authors： Hou Linghua Li Xinhe Yu Dahui Yang Jian

Unit： Central South University

KeyWords： spherical part spinning wrinkle defect critical condition of wrinkling strengthening structure of flange finite element simulation

ClassificationCode：TG156

year,vol(issue):pagenumber：2018,43(11):59-65

Abstract：

Urinkle defect tends to occur in the flange region during the spinning process, because the flange for thin-walled spherical part with large diameter-thickness ratio has a lower rigidity. Therefore, the critical condition of flange wrinkling was deduced based on the law of energy conservation, and a new strengthening spinning process of flange structure was put forward. Then, a finite element simulation model of strengthening spinning for flange structure was established by finite element analysis software MSC.Marc. Through the comparison of simulation data, the circumferential stress and the radial stress with or without strengthening spinning for flange structure were analyzed, and the effectiveness of the critical condition of flange wrinkling was verified. The results show that the maximum circumferential stress value decreases obviously by the new strengthening spinning process of flange structure, and the maximum radial stress value has no obvious change. The spinning test shows the flange wrinkling can be effectively suppressed by the new strengthening spinning process of flange structure for spherical part.

Funds：

国家重点基础研究发展计划（973）资助项目（2014CB046600）

侯令华（1993-），男，硕士研究生,E-mail：1321551005@qq.com;通讯作者：李新和（1957-），男，博士，教授,E-mail：1378239904@qq.com

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