Transactions of Materials and Heat Treatment

Title：Technological parameters optimization of springback for DP800 high strength steel based on response surface method

Authors： Nguyen Quang Minh

Unit： University of Science and Technology Beijing

KeyWords： DP800 steel springback numerical simulation response surface method optimization

ClassificationCode：

year,vol(issue):pagenumber：2015,40(4):40-44

Abstract：

Taking the U-shaped part as object and according to central composite experimental design method, U-shaped part stamping process was simulated, and its springback data under different stamping technological parameters were studied. Based on the response surface method, the springback response models of DP800 U-shaped part under different parameters were established, the influences of friction coefficient, blank holder force and sheet thickness on springback of DP800 during stamping were researched，and the response models of the springback parameters were optimized. The multi-objective optimization results show that the minimum springback can be obtained by the U-shaped model of NUMISHEET93 standard examination questions for DP800 with the friction coefficient 0.2, the blank holder force 100 kN, sheet thickness 2 mm, or friction coefficient 0.1, blank holder force 20 kN, sheet thickness 2 mm.

Funds：

阮光明（1979-），男，博士研究生

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