An Analysis of Forming Limit in Micro Deep Drawing of the Square Cup for Anisotropic Foil
This paper presents an explicit dynamic finite element method (FEM) in conjunction with the forming limit diagram (FLD) to analyze the forming limit for the SPCC foil in micro deep drawing of square cup. In the present study, the tensile, anisotropic and friction test are performed to obtain the material parameters of the alloy foil according to the ASTM standards. Importing these properties, the numerical analysis is conducted by the explicit dynamic FEM. The FLD in numerical simulation is used as the criterion of the forming limit in micro deep drawing of the square cup. The forming limit, punch loadstroke relationship, deformed shape and thickness distribution of square cup, are discussed and compared with the experimental results. It shows that a good agreement is achieved from comparison between simulated and experimental results. The limit drawing ratio in micro deep drawing of square cup is 2.08 in this paper. From this investigation, the results of this paper can be used as reference in the relative researches and applications of micro forming.
Forming limit Micro deep drawing Square cup Anisotropic foil Explicit dynamic finite element method Forming limit diagram Limit drawing ratio
Fung-Huei Yeh Ching-Lun Li Kun-Nan Tsay
Department of Mechanical and Electro-Mechanical Engineering, Tamkang University, No.151,Yingzhuan Rd. Danshui Dist., New Taipei City 25137 Taiwan (R.O.C.)
国际会议
上海
英文
344-347
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）