Transactions of Materials and Heat Treatment

Title：Study on influencing rule of critical blank holder force of rectangular box flange wrinkling

Authors： ZANG Shun-lai1 2 DONG Wei1 QI Wen-yi1 GUO Cheng1 (1.School of Mechanical Engineering Xi'an Jiaotong University Xi'an 710049 China 2.State Key Laboratory of Plastic Forming Simulation and Die and Mould Technology Huanzhong University of Science and Technol

Unit：

KeyWords： rectangular box flange wrinkling critical blank holder force drawing

ClassificationCode：TG386.32

year,vol(issue):pagenumber：2008,33(2):42-46

Abstract：

Wrinkling is the major defect in the rectangular box deep drawing,and blank holder force is the main method to control wrinkling.Using C-B criterion-based theoretical analysis and numerical simulation,the influences of material properties and technical parameters on the critical blank holder force of flange wrinkling were investigated.The analytic and simulation results show that material parameters,K and n,have significant influences on the critical blank holder force of flange wrinkling in the rectangular box deep drawing,but γ-value has a little influence on it.The critical blank holder force increases with the punch stroke and decreases with the round corner radius,but it is not related to the clearance between punch and die.

Funds：

塑性成形模拟及模具技术国家重点实验室开放基金资助项目(批准号:06-13)

Reference：

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