Transactions of Materials and Heat Treatment

Title：Influence of forming track on CNC progressive forming quality

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ClassificationCode：TG335.5

year,vol(issue):pagenumber：2021,46(3):64-69

Abstract：

In order to study the influences of different forming tracks on the forming quality in CNC progressive forming, on the basis of four forming track generation methods such as the underdraught points concentrated contour track, underdraught points dispersed contour track, equal pitch spiral track and unequal pitch spiral track, the CNC progressive forming processes with the above four forming tracks were simulated numerically by software ANSYS/LS-DYNA respectively, and their forming thickness, equivalent strain, element position deviation and contour dimension accuracy were analyzed comparatively according to the numerical simulation results. The results show that the numerical simulation model of the underdraught points concentrated contour track has the smallest average deviation from the theoretical model in the Z direction, the numerical simulation model of the underdraught points dispersed contour track has the smallest element position deviation at XOZ section, and the numerical simulation model of the unequal pitch spiral track has the best surface quality and the smallest overall thinning range.

Funds：

辽宁省自然科学基金资助项目(2014024011)

朱虎(1964-)，男，博士，教授 E-mail：zhuhu10@163.com

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