Transactions of Materials and Heat Treatment

Title：Instantaneous plastic flow control of main ridge of auto fender based on die surface engineering

Authors： Zhang Xinyi Wang Chengyong Wang Siyan Cheng Yongzhang Dai Cheng

Unit： Hefei University of Technology Hefei Jin Haikang

KeyWords： stamping process die surface engineering sheet metal forming slip line control

ClassificationCode：TG386

year,vol(issue):pagenumber：2015,40(12):21-25

Abstract：

For the problem of surface quality of automotive fender appeared in deep drawing, it was analyzed the reason about the ridge slip. Three different projects of die profile design were proposed based on die surface engineering. The problem of uneven instantaneous material flow on both sides of the main ridge area was solved by optimizing parting line shape and controlling the local plastic flow. The influence of optimum surface on improving the plastic structure of the sheet was analyzed by comparing the thickness reduction of the fenders key area, and the plastic value of the sheet was improved by optimizing the position of process groove. Combining the simulation analysis with the experimental verification, the quality of the outer surface of the fender could be improved efficiently by profile design plan C using gentle transition parting die line and local process structure. As a result, the ridge sliding distance was controlled in reasonable range of 5 mm, and plastic deformation of the product was full.

Funds：

国家自然科学基金资助项目（51275146）

作者简介：张心怡（1990-），男，硕士研究生通讯作者：王成勇（1972-），男，博士，副教授

Reference：

［1］周天瑞. 汽车覆盖件冲压成形技术[M]. 北京：机械工业出版社，2000.Zhou T R. Automotive Covering Parts Forming Technology [M]. Beijing: China Machine Press, 2000.
［2］林忠钦. 车身覆盖件冲压成形仿真[M]. 北京：机械工业出版社，2004.Lin Z Q. Automobile Body Covering Parts Stamping Simulation[M]. Beijing: China Machine Press, 2004.
［3］Hong Seok Park, Trung Thanh Nguyen. Optimization of injection molding process for car fender in consideration of energy efficiency and product quality[J]. Journal of Computational Design and Engineering,2014, 1 (4):256-265.
［4］田野,吕明达,黄余平. 汽车前门加强板冲压工艺参数优化[J]. 锻压技术,2014,39(12):35-38.Tian Y, Lv M D, Huang Y P. Parameter optimization of stamping process on auto front floor reinforcing plate [J]. Forging & Stamping Technology,2014,39(12): 35-38.
［5］崔令江. 汽车覆盖件冲压成形技术[M]. 北京：机械工业出版社，2003. Cui L J. Automotive Covering Parts Forming Technology[M]. Beijing: China Machine Press, 2003.
［6］Fu Q Q, Zhu W, Zhang Z L, et al. Effect of variable holder force on rectangular box drawing process of hot-galvanized sheet steel[J]. Mater. Sci. Technol., 2005,6(6):909-913.
［7］陈蕴弛，李芳，王秋成. 基于响应面法的渐进成形参数优化[J]. 锻压技术，2014，39 (11)：11-15.Chen Y C，Li F，Wang Q C. Parameter optimization of incremental sheet forming by response surface method[J]. Forging & Stamping Technology，2014，39(11)：11-15.
［8］Noakes C J, Gaskell P H,Thompson H M, et al. Streak-line defect minimization in multi-layer slide coating systems[J]. Institution of Chemical Engineers,2002,(80): 450-463.
［9］李玉强，张冬娟，崔振山,等. 板料成形优化技术进展与质量工程研究[J]. 塑性工程学报，2005.12(2):11-15.Li Y Q, Zhang D J, Cui Z S,et al. Recent advances of sheet metal forming optimization and quality engineering research[J]. Journal of Plasticity Engineering, 2005, 12(2): 11-15.
［10］袁宏亮,杨忠炯,周立强,等. 复杂空间曲面薄板成形模面快速设计方法[J]. 锻压技术,2014, 40(5): 28-32.Yuan H L, Yang Z J, Zhou L Q,et al. A rapid design method for the tool surface of sheet metal with complex space and curved surface [J]. Forging & Stamping Technology,2014,40(5): 28-32.

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