Transactions of Materials and Heat Treatment

Title：Finite element simulation and analysis of ball spinning defects of TP2 inner-grooved copper tubes

Authors： LIU Jin-song YE Neng-yong ZHANG Shi-hong TANG Wei-dong

Unit： Shenyang Ligong University Chinese Academy of Science

KeyWords： TP2 inner\|grooved copper tube ball spinning folding notch

ClassificationCode：TG37

year,vol(issue):pagenumber：2011,36(5):46-50

Abstract：

According to the defects of folding and notch, finite element models of ball spinning of TP2 inner-grooved copper tubes were established separately on the basis of actual field processing parameters using finite element software MSC.Marc. The forming process and cause were analyzed through the simulation and mechanical analysis. The results show that notches can be avoided by increasing the addendum arc's curvatures which can be increased through decreasing the tubes wall thickness after reducing diameter drawing process and increasing the core-head addendum fillet. In addition, the formed teeth neutral can be also enhanced by increasing the addendum fillet of the floating mandrel in order to avoid forming the folding defects.

Funds：

国家自然科学基金资助项目（50474059）

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