Optimization of initial blank shape to minimize earing in deep drawing using finite element method

2002 ◽  
Vol 130-131 ◽  
pp. 20-30 ◽  
Author(s):  
Naval Kishor ◽  
D Ravi Kumar
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Deep Drawing ◽  
Initial Blank ◽  
Blank Shape ◽  
Element Method

Study on Deep Drawing Law of the Cylindrical Part with Prefabricate-Holes Based on Inverse Finite Element Method and Forward Finite Element Method

2012 ◽  
Vol 170-173 ◽  
pp. 3086-3090
Author(s):  
Li Guang Tan ◽  
Xiao Ting Xiao ◽  
Hua Dian Wen ◽  
Qiao Yu Chen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Deep Drawing ◽  
Production Cost ◽  
Cylindrical Part ◽  
Forward Simulation ◽  
Theory Analysis ◽  
Inverse Finite Element Method ◽  
Blank Shape ◽  
Element Method

According to processing characteristics of getting rectangular holes after forming of the cylindrical part with prefabricate-holes, the optimum blank shape of the cylindrical part is necessary to improve product quality and reduce production cost. Theory analysis and numerical simulations combined with inverse finite element method and forward finite element method by using ETA/ DYANFORM were employed to investigate the influence on blank shape by the holes, modify the reverse blank shape and optimize the deep drawing by forward simulation,and finally obtain the forming law of the cylindrical part with prefabricate-holes.

Multi-Step Forward Finite Element Method for the Numerical Simulation of Sheet Metal Forming

2011 ◽  
Vol 474-476 ◽  
pp. 251-254
Author(s):  
Jian Jun Wu ◽  
Wei Liu ◽  
Yu Jing Zhao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Deep Drawing ◽  
Metal Forming ◽  
Mapping Method ◽  
Constitutive Relationship ◽  
Element Method

The multi-step forward finite element method is presented for the numerical simulation of multi-step sheet metal forming. The traditional constitutive relationship is modified according to the multi-step forming processes, and double spreading plane based mapping method is used to obtain the initial solutions of the intermediate configurations. To verify the multi-step forward FEM, the two-step simulation of a stepped box deep-drawing part is carried out as it is in the experiment. The comparison with the results of the incremental FEM and test shows that the multi-step forward FEM is efficient for the numerical simulation of multi-step sheet metal forming processes.

The improvement in deep drawing process for producing air filter by using finite element method

2013 ◽  
Vol 40 (1) ◽  
pp. 125-130
Author(s):  
Trinet Yingsamphancharoen ◽  
Nakarin Srisuwan ◽  
Chira Densangarun
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Deep Drawing ◽  
Drawing Process ◽  
Air Filter ◽  
Deep Drawing Process ◽  
Element Method

A FINITE ELEMENT ANALYSIS FOR THE EFFECTS OF PROCESS PARAMETERS AND MATERIAL ANISOTROPY IN THE CYLINDRICAL DEEP DRAWING

2008 ◽  
Vol 07 (01) ◽  
pp. 21-32
Author(s):  
T. S. YANG ◽  
N. C. HWANG ◽  
R. F. SHYU
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Process Parameters ◽  
Deep Drawing ◽  
Strain Hardening Exponent ◽  
Drawing Process ◽  
Material Anisotropy ◽  
Plastic Strain Ratio ◽  
Deep Drawing Process ◽  
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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