Optimum Blank Shape for Cylindrical Cup from SUS304 in Deep Drawing Process by Finite Element Method

Deep drawing process, one of sheet metal forming methods, is very useful in industrial field because of its efficiency. The deep drawing process is affected by many material and process parameters, such as the strain-hardening exponent, plastic strain ratio, anisotropic property of blank, friction and lubrication, blank holder force, presence of drawbeads, the profile radius of die and punch, etc. In this paper, a finite element method is used to investigate the cylindrical deep drawing process. The thickness of product and the forming force predicted by current simulation are compared with the experimental data. A finite element method is also used to investigate the maximum forming load and the minimum thickness of products under various process parameter conditions, including the profile radius of die, the clearance between die cavity and punch and the blank holding force. Furthermore, the material anisotropy and process parameters effect on the earing are also investigated.

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The effect of blank holder on the deep drawing process on plates using software based with a Finite Element Method (FEM)

Journal of Physics Conference Series ◽

10.1088/1742-6596/1469/1/012038 ◽

2020 ◽

Vol 1469 ◽

pp. 012038

Author(s):

D Sugiyanto ◽

H Asbanu ◽

F S Siahaan

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Deep Drawing ◽

Drawing Process ◽

Blank Holder ◽

Deep Drawing Process ◽

Element Method

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A Finite Element Method for A Numerical Analysis of the Deep-Drawing Process

Numerical Techniques for Engineering Analysis and Design ◽

10.1007/978-94-009-3653-9_12 ◽

1987 ◽

pp. 103-110

Author(s):

M. Brunet

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Numerical Analysis ◽

Deep Drawing ◽

Drawing Process ◽

Deep Drawing Process ◽

Element Method

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Prediction and optimization of thinning in automotive sealing cover using Genetic Algorithm

Journal of Computational Design and Engineering ◽

10.1016/j.jcde.2015.08.001 ◽

2015 ◽

Vol 3 (1) ◽

pp. 63-70 ◽

Cited By ~ 3

Author(s):

Ganesh M. Kakandikar ◽

Vilas M. Nandedkar

Keyword(s):

Genetic Algorithm ◽

Finite Element Method ◽

Finite Element ◽

Process Parameters ◽

Deep Drawing ◽

Drawing Process ◽

The Finite Element Method ◽

Deep Drawing Process ◽

Compressive Stresses ◽

Element Method

Abstract Deep drawing is a forming process in which a blank of sheet metal is radially drawn into a forming die by the mechanical action of a punch and converted to required shape. Deep drawing involves complex material flow conditions and force distributions. Radial drawing stresses and tangential compressive stresses are induced in flange region due to the material retention property. These compressive stresses result in wrinkling phenomenon in flange region. Normally blank holder is applied for restricting wrinkles. Tensile stresses in radial direction initiate thinning in the wall region of cup. The thinning results into cracking or fracture. The finite element method is widely applied worldwide to simulate the deep drawing process. For real-life simulations of deep drawing process an accurate numerical model, as well as an accurate description of material behavior and contact conditions, is necessary. The finite element method is a powerful tool to predict material thinning deformations before prototypes are made. The proposed innovative methodology combines two techniques for prediction and optimization of thinning in automotive sealing cover. Taguchi design of experiments and analysis of variance has been applied to analyze the influencing process parameters on Thinning. Mathematical relations have been developed to correlate input process parameters and Thinning. Optimization problem has been formulated for thinning and Genetic Algorithm has been applied for optimization. Experimental validation of results proves the applicability of newly proposed approach. The optimized component when manufactured is observed to be safe, no thinning or fracture is observed.

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