Transactions of Materials and Heat Treatment

Title：New process of T-pipe forming by moving block and punch axial feed

Authors： He Jianchun Xiao Xiaoting Chen Mingtao Liu Zhifeng

Unit： Guangdong University of Technology

KeyWords： T-pipe moving block numerical simulation branch feeding hydroforming technology

ClassificationCode：TG394

year,vol(issue):pagenumber：2017,42(3):109-113

Abstract：

The influences of axial displacement variables and internal pressure variables on the branch height, the maximum and minimum wall thickness of T-pipe were numerically simulated by ABAQUS explicit algorithm. Then, the wall thickness distribution was analyzed, and the branch feeding principle was explored. The simulation results show that the contribution rate of long displacement and high internal pressure to the increase of branch height is 330% and 84.2% respectively, the influence on the maximum wall thickness is 39.4% and 13.5% respectively, and the influence on the minimum wall thickness is 5.1% and 33.8% respectively. Furthermore, the branch wall thickness shows that both sides are symmetrical with four peaks and three valleys. The material feeding principle of moving block and axial extrusion punch is that twoend material is pushed into the branch root area to realize the material feeding process.

Funds：

国家自然科学基金资助项目（U0934006）

何建春 (1990-)，男，硕士研究生肖小亭（1957-），男，博士，教授，博士生导师

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