Transactions of Materials and Heat Treatment

Title：Optimization on process parameters of leaf spring based on response surface method

Authors： Li Bing Liu Kuiwu Gao Peng Shi Yichao

Unit： Jiangsu Food ＆ Pharmaceutical Science College Occupational Skill Testing Authority Ministry of Huai′an

KeyWords： leaf spring response surface method numerical simulation stamping forming height

ClassificationCode：TG386

year,vol(issue):pagenumber：2017,42(2):189-192

Abstract：

For elastic component leaf spring, the forming process parameters were optimized based on response surface method and DYNAFORM. Then, the process parameters of numerical simulation were chosen by the method of central composite design, the response value of forming height for leaf spring was obtained by numerical simulation, and the second-order response surface model was established to reflect the relationship between process parameters and forming height by the least square method. Furthermore, the second-order response surface model with design variables of process parameters, such as bending angle, die clearance and stamping speed and optimization objective of forming height was optimized by the Design Expert v8.0.5, and the best combination of process parameters was acquired with bending angle 150°, die clearance 1.02t, stamping speed 3004 mm·s-1 and the response value of forming height 5.69 mm. At last, the response value was verified by the experimental value 5.61 mm of progressive die, and the relative error between experimental value and response value is 1.43%. Therefore, the accuracy of the response surface method applied in the optimization of forming process parameters of leaf spring was verified.

Funds：

淮安市重点研发计划(工业及信息化)(HAG2015018)

李兵（1983-），男，硕士，讲师

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