%0 Journal Article
%T STUDY ON THE NUMERICAL SIMULATION OF MULTI-STAGE ROTARY FORGING OF A NON-AXISYMMETRIC PART AND THE CAE ANALYSIS OF THE DIE STRENGTH
%A H Tian
%A J Wang
%A WP Dong
%A J Chen
%A Z Zhao
%A GM Wu
%A <br>H.
%A Tian
%A J.
%A Wang
%A W.P.
%A Dong
%A J.
%A Chen
%A Z.
%A Zhao
%A G.M.
%A Wu
%J 金属学报(英文版)
%D 2005
%I 
%X Traditionally a rotary forging process is a kind of metal forming method where a conic upper die, whose axis is deviated an angle from the axis of machine, forges a billet continuously and partially to finish the whole deformation. For the rotary forging process simulation, more re- searches were focused on simulating the simple stage forming process with axisymmetric part geometry. Whereas in this paper, the upper die is not cone-shaped, and the billet is non-ax- isymmetric. So the movement of the punch is much more complicated than ever. The 3D FEM simulation models for the preforming & final forming processes are set up after carefully study- ing the complicated movement pattern. Deform-3D is used to simulate the material flow, and the boundary nodal resisting forces calculated by the final stage process simulation is used to ana- lyze the final forming die strength. The CAE analysis of the die shows that the design of the fi- nal forming die is not reasonable with lower pre-stress which is easy to crack at the critical comers. An optimum die design is also provided with higher pre-stress, and verified by CAE analysis.
%K numerical simulation
%K non-axisymmetric
%K rotary forging
%K die strength<br>冷轧工艺
%K FEM
%K 数值模拟
%K 冲模设计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=F964CC51DB34A25ED13D6415C4F0CC4B&yid=2DD7160C83D0ACED&vid=13553B2D12F347E8&iid=94C357A881DFC066&sid=821800203AD09E7B&eid=20ED669EB429E15C&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=8