OPTIMIZATION OF FORMING HEIGHT OF SPCC CYLINDRICAL CUP  IN THERMAL-ASSISTED DEEP DRAWING

The-Thanh Luyen; Thi- Bich Mac

The-Thanh Luyen Hung Yen University of Technology and Education
Thi- Bich Mac Hung Yen University of Technology and Education

Keywords: Deep drawing proces, forming height, SPCC sheet steel, temperature, Finite Elenment Method (FEM), Taguchi

Abstract

In this paper, a numerical study investigated the effect of process parameters like blank holder force (FBH), punch corner radius (RP), and workpiece temperature (T) on forming height. The optimization problem for forming height was also solved. The appropriate parameters were then verified by experimentally the cylindrical cup stamping process, the deviation between simulation and experiment was 1.99 %. A highly accurate mathematical equation was built to estimate the forming height at different machining conditions, the maximum deviation between mathematical model and simulation was 4.9 %. These results can be used in predicting defects in simulating the deep stamping process of cylindrical cups with different materials.

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