Effect of pre-forming and pressure path on deformation behavior in multi-pass hydrodynamic deep drawing process

2017 ◽  
Vol 121 ◽  
pp. 171-180 ◽  
Author(s):  
W.D. Li ◽  
B. Meng ◽  
C. Wang ◽  
M. Wan ◽  
L. Xu
Keyword(s):  
Deep Drawing ◽  
Deformation Behavior ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Hydrodynamic Deep Drawing

Investigation on Friction Coefficient Considering Al-Si Coating Layer Fracture of Boron Sheets in Hot and Cold Deep Drawing

2020 ◽  
Vol 846 ◽  
pp. 117-121
Author(s):  
Min Sik Lee ◽  
Jun Park ◽  
J.S.Suresh Babu ◽  
Chung Gil Kang
Keyword(s):  
Friction Coefficient ◽  
Deep Drawing ◽  
Deformation Behavior ◽  
Coating Layer ◽  
Surface Condition ◽  
Forming Limit ◽  
Boron Steel ◽  
Drawing Process ◽  
Forming Process ◽  
Deep Drawing Process

In this paper, hot and cold deep drawing processes are determined with direct deep drawing process and indirect deep drawing process. To predict the friction coefficient, the finite-element method, which can predict deformation behavior until the fracture of a blank sheet, was proposed using the forming limit diagram (FLD) curve. The effect of fracturing of the coating layer on the friction coefficient during the hot and cold deep drawing processes was investigated. The deformation behavior of the coating layer of the boron steel sheet that affects the friction coefficient in the hot and cold deep drawing processes was also proposed. A forming method that can control the surface condition of the formed product is further proposed by explaining the fracture of the coating due to the forming process.

scholarly journals Deformation behavior of metal foil in micro pneumatic deep drawing process

2018 ◽  
Vol 15 ◽  
pp. 1422-1428 ◽  
Author(s):  
Zicheng Zhang ◽  
Ning Chen ◽  
Tsuyoshi Furushima ◽  
Bin Li
Keyword(s):  
Deep Drawing ◽  
Deformation Behavior ◽  
Metal Foil ◽  
Drawing Process ◽  
Deep Drawing Process

Investigation of consecutive two-stage hydrodynamic deep drawing of aluminum cylindrical cups

2021 ◽  
pp. 095440542110622
Author(s):  
Seyed Hassan Alavi Hashemi ◽  
Seyed Mohammad Hossein Seyedkashi
Keyword(s):  
Deep Drawing ◽  
Diameter Ratio ◽  
Drawing Ratio ◽  
Drawing Process ◽  
Effective Parameters ◽  
Limit Drawing Ratio ◽  
Deep Drawing Process ◽  
Hydrodynamic Deep Drawing ◽  
Element Simulation ◽  
Simulation Results

In the deep drawing process, achieving a higher drawing ratio has always been considered by researchers. In this study, a new concept of hydrodynamic deep drawing with two consecutive stages without additional operations such as annealing is proposed to increase the limit drawing ratio of the cups. The effective parameters were investigated numerically and experimentally in the forming of Al1200 cylindrical cups. At first, the desired value of punch diameter ratio was determined based on finite element simulation results and was utilized to increase the cup formability. Next, the effects of pressure paths on the cup thickness, separation, and rupture were studied in each forming stage. The cup formability was investigated based on a new proposed framework to obtain the maximum possible limiting drawing ratio, and the desired conditions were determined. Finally, a cup was formed with a high drawing ratio of 3.4 which was a good achievement in comparison with the literature.

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