Flexible-die forming process with solid granule medium on sheet metal

2013 ◽  
Vol 23 (9) ◽  
pp. 2666-2677 ◽  
Author(s):  
Guo-jiang DONG ◽  
Chang-cai ZHAO ◽  
Miao-yan CAO
Keyword(s):  
Sheet Metal ◽  
Forming Process ◽  
Flexible Die Forming ◽  
Granule Medium ◽  
Flexible Die ◽  
Die Forming ◽  
Solid Granule

Numerical Analysis of Coupled Finite Element with Meshfree in Bulging Process of Sheet Elastic Flexible-Die Forming

2011 ◽  
Vol 189-193 ◽  
pp. 2054-2057
Author(s):  
Zhong Jin Wang ◽  
Bin Xian Yuan ◽  
Jian Guang Liu
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Sheet Metal ◽  
Analysis Method ◽  
Element Free Galerkin Method ◽  
Element Free Galerkin ◽  
Flexible Die Forming ◽  
Element Free ◽  
Flexible Die ◽  
Die Forming

Sheet flexible-die forming processes have been playing a good application on sheet metal forming in the industry field. Because of the coupled deformation between sheet metal and flexible-die, it is necessary to utilize numerical simulation technology to analyze it. In this paper, a numerical analysis method for coupling the deformation of sheet metal and flexible-die is developed. The deformation of sheet metal is analyzed with finite element method (FEM) and the bulk deformation of flexible-die is analyzed with the Element free Galerkin method (EFGM). The sheet flexible-die bulging process is analyzed with the developed FEM-EFGM method. This paper proposes a suitable numerical method to analyze sheet flexible-die forming.

Forming micro channels on aluminum foils by using flexible die forming process

2015 ◽  
Vol 19 ◽  
pp. 102-111 ◽  
Author(s):  
Jenn-Terng Gau ◽  
Hao Gu ◽  
Xinhui Liu ◽  
Kun-Min Huang ◽  
Bor-Tsuen Lin
Keyword(s):  
Forming Process ◽  
Flexible Die Forming ◽  
Micro Channels ◽  
Flexible Die ◽  
Die Forming

Microscopic Study of Pressure-Transfer Characteristics in the Solid Granule Medium Forming

2011 ◽  
Vol 183-185 ◽  
pp. 1752-1756 ◽  
Author(s):  
Miao Yan Cao ◽  
Chang Cai Zhao ◽  
Hong Xiao
Keyword(s):  
Pressure Coefficient ◽  
Internal Force ◽  
Force Chains ◽  
Forming Process ◽  
Compression Process ◽  
Transfer Characteristics ◽  
Steel Balls ◽  
Granule Medium ◽  
Axial Compression Experiment ◽  
Solid Granule

To reveal the pressure-transfer characteristics of the granular materials in the Solid Granule Medium Forming process, the stainless steel balls with diameter of 1 mm were selected as medium to conduct the axial compression experiment. The particle compression process was simulated by discrete element method, and then the variation law of the microstructure was analyzed from the perspective of force chain. The results showed that: In the gradual compression process of granule medium, its force chains distribution changes from the initial circular shape to the elliptical shape. As the stress increases, the force chains get denser and denser. In addition, the lateral pressure coefficient changes in power law with the compressive stress and it tends to be constant when the internal force chains structure gets stable.

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