Original scientific paper

Optimization of deep drawing process parameters of 304 stainless steel

Sh. Xu ; Department of Mechanical Engineering, Zhejiang Business and Technology Institute, Ningbo, China
S. H. Zheng ; College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China
Sh. Z. Yang ; Department of Mechanical Engineering, Zhejiang Business and Technology Institute, Ningbo, China
Q. H. Yang ; College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China

Abstract

The one-step drawing process of double-box flume was simulated by finite element method(FEM). It was found that major defects in the forming process were vertical surface fractures in the box and material accumulation near rounded corners. The optimal forming parameters were obtained by optimizing and improving workpiece, single factor analysis and orthogonal experiment optimization. Guiding grooves with an included angle of 140° and a depth of 1 mm was designed in the blank holder to guide materials from accumulation area to insufficient area, thus reducing material fractures and improving deep drawing. The ultimate depth of one-step drawing without defects was increased to 190 mm by optimizing process parameters and improving structure.

Keywords

stainless steel; deep drawing; simulation analysis; process optimization; guiding groove

Hrčak ID:

256001

URI

https://hrcak.srce.hr/256001

Publication date:

1.7.2021.

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