Transactions of Materials and Heat Treatment

Title：Numerical simulation and experimental research of drawing process of EPR water chamber head

Authors： Chen Zhiying Liu Zhenglei Ren Yunlai

Unit： Shanghai Dianji University Yanshan University

KeyWords： nuclear power water chamber head drawing finite element method physical simulation

ClassificationCode：TG386

year,vol(issue):pagenumber：2014,39(6):128-131

Abstract：

The water chamber head is the key part of nuclear power steam generator. Due to its complex shape with two nozzles and four supports, the integral forging process is more difficult to be realized. A deep drawing process was proposed for the nuclear power EPR large water chamber head with nozzles and supports. The corresponding dies and related billet were designed. Using a combination method of numerical simulation and physical simulation experiment, the plastic deformation law of drawing process and the wall thickness reduction distribution of deformed forging for water chamber head were analyzed. The results show that the maximum wall thickness thinning of deformed water head is located at the transition zone of the spherical area with a straight wall segment. The wall thickness of outer end of straight wall section is slightly thickened.

Funds：

上海市育委员会科研创新项目(12YZ183)(12AZ02)；上海市教育委员会上海高校知识服务平台建设项目(ZF1225)

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