Optimum blank design for sheet metal forming based on the interaction of high- and low-fidelity FE models

2006 ◽  
Vol 75 (10-12) ◽  
pp. 679-691 ◽  
Author(s):  
Ryutaro Hino ◽  
Fusahito Yoshida ◽  
Vassili V. Toropov
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Blank Design

Research on applying one-step simulation to blank design in sheet metal forming

2002 ◽  
Vol 120 (1-3) ◽  
pp. 111-114 ◽  
Author(s):  
Ye Wang ◽  
Qiyu Shen ◽  
Yuguo Wang ◽  
Yongqing Zhang
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Blank Design ◽  
One Step

Implementation of backward tracing scheme of the FEM to blank design in sheet metal forming

2001 ◽  
Vol 111 (1-3) ◽  
pp. 90-97 ◽  
Author(s):  
Tae Wan Ku ◽  
Hak Jin Lim ◽  
Han Ho Choi ◽  
Sang Moon Hwang ◽  
Beom Soo Kang
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Blank Design

NUMERICAL OPTIMIZATION OF SHEET METAL FORMING PROCESS USING NEW FRACTURE CRITERION

2008 ◽  
Vol 22 (31n32) ◽  
pp. 5692-5698 ◽  
Author(s):  
A. HIRAHARA ◽  
R. HINO ◽  
F. YOSHIDA ◽  
V. V. TOROPOV
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Numerical Optimization ◽  
Fracture Criterion ◽  
Optimization Strategy ◽  
Forming Process ◽  
Optimization System ◽  
Blank Design ◽  
Metal Forming Process

A numerical optimization system for sheet metal forming process has been developed based on a combination of response-surface-based optimization strategy with finite element simulation. The most important feature of the optimization system is introduction of a new fracture criterion to predict fracture limit under non-proportional deformation. In addition, a sheet-edge fracture criterion is also introduced to predict fracture limit under stretch-flanging deformation. The numerical optimization system is developed using the fracture criteria as accurate fracture constraints to avoid sheet breakage. The developed optimization system is applied to the optimum blank design for a square-cup deep drawing process of perforated blank. The optimum blank design, which minimizes the amount of material and avoids the sheet fracture, is obtained successfully. The effect of definition of fracture constraints on optimization calculation is also discussed.

ИССЛЕДОВАНИЕ ТОЧНОСТИ ДЕТАЛЕЙ, ПОЛУЧАЕМЫХ ПРИ РАЗДЕЛИТЕЛЬНЫХ ОПЕРАЦИЯХ В ПЕРЕНАЛАЖИВАЕМЫХ ШТАМПАХ

2018 ◽  
pp. 52-63
Author(s):  
Е. А. Фролов ◽  
В. В. Агарков ◽  
С. И. Кравченко ◽  
С. Г. Ясько
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Balance Method ◽  
Experiment Planning ◽  
Practical Recommendations

To determine the accuracy of the readjustable punches for separating operations (perforation + punching out) of sheet-metal forming, the accuracy parameters were analyzed using the random balance method using the method of experiment planning. Analytical dependencies are obtained to determine the values of deviation of the outer and inner contour dimensions of perforated and punched out sheet parts. From the dependencies obtained, it is possible to estimate and predict the value of deviation in the dimensions of the resulting part at any time during the operation of the punch. Practical recommendations on the calculation of the actuating dimensions of the working elements (stamping punch, matrix) of readjustable punches are offered.

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