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Abstract：
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For the problems of cracking and wrinkling occurring in the T-shape tube hydroforming process, in order to improve the forming quality of T-shape tube, the key parameters such as the minimum wall thickness and bulging height were selected as the evaluation indexes of forming quality of tube. First of all, with the help of hydroforming equipment, the experiment of T-shape tube was carried out, and the key parameters of T-shape tube forming were obtained. Then, the hydroforming process of T-shape tube was simulated and analyzed by non-linear software DYNAFORM. By comparing with the experimental results, the correctness of the establishment and simulation analysis for finite element model was verified, and the loading path of T-shape tube was optimized by the orthogonal experiment. Furthermore, the optimal loading path within the selected process parameters was proposed, and the feasibility and correctness of obtaining the loading path based on numerical simulation and orthogonal experiment were verified by experiment, which provided reference for the research of hydroforming of related tube fittings.
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Funds：
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广西自然科学基金资助项目（2016GXNSFAA380211）；柳州市科学研究与技术开发计划课题(2016C050203)；广西科技大学研究生教育创新计划项目（GKYC201702）
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AuthorIntro：
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作者简介：朱书建(1990-)，男，硕士研究生
E-mail：1627985001@qq.com
通讯作者：李健 （1980-），男，博士，教授
E-mail:lijian0772@126.com
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Reference：
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