Transactions of Materials and Heat Treatment

Title：Study on temperature field before hot power spinning for magnesium alloy cylindrical part with inner ribs based on induction heating

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ClassificationCode：TG306;TH161.2

year,vol(issue):pagenumber：2021,46(3):111-117

Abstract：

For the hot power spinning of magnesium alloy cylindrical part with inner ribs, the temperature field distribution of cylindrical blank before spinning has an important influence on the material flow and forming quality of spinning part in the forming process. Therefore, the electromagnetic induction heating model of cylindrical blank before hot power spinning of ZK61 magnesium alloy cylindrical part with inner ribs was established by the multi-physics coupling software COMSOL, the temperature field distribution conditions of cylindrical blank under different induction heating parameters were simulated and analyzed, and the reliability of model was verified by experiment. The results show that compared with the current intensity, the current frequency has a more significant influence on the temperature difference between the surface and core of cylindrical blank, and with the increasing of current frequency and current intensity, the temperature difference between the surface and core of cylindrical blank gradually increases. Furthermore, the induction coil turns and the distance between coil and cylindrical blank both have significant influences on the temperature difference between the surface and core of cylindrical blank. As the number of coil turns increases, the temperature difference between the surface and core of cylindrical blank increases exponentially, and the larger the distance between coil and cylindrical blank is, the smaller the temperature difference between the surface and core of cylindrical blank is.

Funds：

国家自然科学基金资助项目（51775194）

江鹏（1995-），男，硕士研究生 E-mail： 1115818376@qq.com 通讯作者：夏琴香（1964-），女，博士，教授 E-mail:meqxxia@scut.edu.cn

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