Application of the finite-element deformation method in the fine blanking process

1997 ◽  
Vol 63 (1-3) ◽  
pp. 744-749 ◽  
Author(s):  
T.C. Lee ◽  
L.C. Chan ◽  
P.F. Zheng
Author(s):  
Juan Pablo Arreguin-Rodriguez ◽  
Sergio Antonio Campos Montiel ◽  
Juvenal Rodriguez-Resendiz ◽  
Gonzalo Macias Bobadilla ◽  
Jose Eli Eduardo Gonzalez-Duran

2009 ◽  
Vol 16-19 ◽  
pp. 495-499 ◽  
Author(s):  
Si Ji Qin ◽  
Li Yang ◽  
Jia Geng Peng

The fine blanking process with a stepped-edge punch was researched by finite element method (FEM) and experiment investigation. Finite element analysis showed that the hydrostatic stress of the blank around the edges changes a little during fine blanking process using a stepped-edge punch with negative clearance. The burnish zone of sheared surface increases with the increase of the relative negative clearance. The reasonable forming parameters were presented by a lot of experiment investigations. Parts of three kinds of materials, Q235 steel, copper and industrial aluminum, were formed using fine blanking process with a stepped-edge punch. Full burnish zone were obsearved for all the parts.


2004 ◽  
Vol 274-276 ◽  
pp. 727-732
Author(s):  
P.F. Zheng ◽  
Tai Chiu Lee ◽  
Luen Chow Chan

2014 ◽  
Vol 1025-1026 ◽  
pp. 391-394
Author(s):  
Jong Deok Kim ◽  
Young Moo Heo

In this paper, the finite element analysis (FEA) of the fine blanking process was conducted for the seat recliner plate holder of recreation vehicle. Because the plate holder was a complex part with the various dimple shapes, it was formed and blanked with a three-station progressive fine blanking tool. The fine blanking tool was optimally designed, manufactured and performed the fine blanking experiments. The shear surface of the outer contour, the stress and strain of the part, and the loads of the tool elements were estimated by the results of the fine blanking simulation. Because the plate holder samples from fine blanking experiments had the good accuracy of the dimples’ position and dimension, it would be noticed the fine blanking simulation was conducted without error.


2009 ◽  
Vol 83-86 ◽  
pp. 1099-1106 ◽  
Author(s):  
Sutasn Thipprakmas ◽  
C. Chanchay ◽  
N. Hanwach ◽  
W. Wongjan ◽  
K. Vichitjarusgul

In cold working metal forming process, severe plastic deformation results in changes in the material properties. Earlier researches mainly investigated the rolling and equal channel angular extrusion (ECAE) processes. This study focuses on the fine-blanking process, specially the increasing material hardness on the fineblanked sprocket part. The microstructure around the cut surface is observed and the finite element analysis is done to clarify the mechanism of the increasing hardness as well. The microstructure revealed increasingly compressed and elongated grain structure of the contributed grain flow and orientation, as the blankholder and counterpunch forces increased. This resulted in the increased material hardness around the cut surface. Thus, these results theoretically clarified the mechanism of the increasing material hardness in the fine-blanking process regarding microstructural evolution, with the associated finite element analysis. Therefore, the special characteristic features in the fine-blanking process, result in the pronounced hardening around the fineblanked surface.


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