Transactions of Materials and Heat Treatment

Title：nfluence factor analysis and forming process optimization on bending springback for window lift plate

Authors： Wang Liyuan Mei Yi Liu Chuang Yang Xingyu

Unit： Guizhou University

KeyWords： window lift plate bending springback orthogonal test repeated orthogonal test

ClassificationCode：TG386.41

year,vol(issue):pagenumber：2017,42(5):38-42

Abstract：

For the problem of springback affecting size and assembly performance in the bending process of window lift plate for automobile caused by the existence of elasticity and residual stress of sheet metal, the forming process and the springback prediction were carried out by the Dynaform software. Then, nine sets of different process parameters were designed with four influence factors as the sheet thickness A, the stamping speed B, the friction coefficient C and the mold gap D, and the springback results were obtained by the orthogonal test and repeated orthogonal test (the number of repetitions S=3 ). Furthermore, the primary and secondary sorting of influence factors and the process optimization were carried out by the range analysis (Option 1) and variance analysis (Option 2). The results of Option 1 and Option 2 were as follows: A>B>D>C, A2B2D3C2 and B>D>C>A, B2D3C2A1 respectively. After comparing and verifying the two groups of process parameters, the optimum process parameters were determined as follows: sheet thickness A is 0.9 mm, punching speed B is 5000 mm·s-1, friction coefficient C is 0.125, and die gap D is 1.15. The trial production was manufactured, and the thickness of dangerous rounded corner for parts is 0.70 mm and the thinning rate is less than 25%. Finally, the trial assembly shows that the part produced by the optimized process parameters can meet size and assembly requirements under their working conditions.

Funds：

贵州大学研究生创新基金（研理工2016031）；数字化精密成形技术及装备研究生创新实践基地（贵大研CXJD［2014］001）

王莉媛（1992-），女，硕士研究生梅益（1974-），男，博士，教授

Reference：

［1］朱东波，孙棍，李涤尘，等.板料成形回弹问题研究新进展[J].塑性工程学报，2000，7(1)：11-16.Zhu D B，Sun G，Li D C，et al. The new research progress of sheet metal stamping springback [J].Journal of Plasticity Engineering，2000，7(1)：11-16.
［2］刘佳杰.基于的板料弯曲回弹的数值模拟研究[D].株洲：中南林业科技大学，2012.Liu J J. Research on the Numerical Simulation of Sheet-Metal Bending Springback Based on Dynaform [D]. Zhuzhou：Central South University of Forestry and Technology，2012.
［3］胡蕾.铝合金车门外板冲压成形工艺设计与工艺参数稳健优化[D].长沙：湖南大学，2014.Hu L. Aluminum Alloy Auto Body Enclosure Panel Stamping Process Design and Process Parameters Robust Optimization [D].Changsha：Hunan University，2014.
［4］黄荣学,曹建国,范洪远.有限元法在冲压模具分析中的应用及展望[J].锻压技术，2005，30（2）：69-72.Huang R X，Cao J G，Fan H Y. Application and its trend of finite element method in analyzing cold forging die[J].Forging & Stamping Technology，2005，30（2）：69-72.
［5］Chu C C. The effect of restraining force on springback[J].International Journal of Solids and Structures，1991，27（8）：1035-1046.
［6］Wang C T，Kinzel G L，Altan T. Process Simulation and Springback Control in Plane Strain Sheet Bending [R]. Ohio State：SAE Technical Paper 930280，1993.
［7］Huang Y M，Leo Draw-Kwei. An elastic-plastic finite element analysis of sheet metal U-bending process[J].Journal of Material Processing Technology,1995，48：151-157.
［8］穆瑞，朱晓红，王晓莉.基于正交试验的波形片冲裁工艺参数优化[J].锻压技术，2016，41（8）：159-162.Mu R，Zhu X H，Wang X L. Optimization on blanking process parameters for cushion segment based on orthogonal experiment [J].Forging & Stamping Technology，2016，41（8）：159-162.
［9］陈岚涛.某微型客车侧围板拉延成形仿真分析[D].成都:西南交通大学，2012.Chen L T. Analysis of the Microbus Body-Side Sheet Drawing Forming Simulation [D].Chengdu: Southwest Jiaotong University，2012.
［10］龚红英，刘克苏，董万鹏，等，金属塑性成形CAE应用——DYNAFORM[M].北京：化学工业出版社，2014.Gong H Y，Liu K S，Dong W P，et al. Metallic Plastic Forming CAE Application-DYNAFORM[M].Beijing：Chemical Industry Press，2014.
［11］何为，薛卫东，唐斌.优化试验设计方法及数据分析[M].北京：化学工业出版社，2012.He W，Xue W D，Tang B. Optimization Design Method and Data Analysis[M].Beijing：Chemical Industry Press，2012.
［12］王岩，隋思莲.试验设计与MATLAB数据分析[M].北京：清华大学出版社，2012.Wang Y，Sui S L. Experimental Design and MATLAB Data Analysis [M]. Beijing：Tsinghua University Press，2012.

Service：

【This site has not yet opened Download Service】【Add Favorite】