scholarly journals Research on reliability of punch bonding technology with steel-aluminum sheet metals

2016 ◽  
Vol 52 (01) ◽  
pp. 65-70
Author(s):  
F. LI ◽  
G. N. CHU ◽  
M. D. XU ◽  
X. C. SUI ◽  
W. SHI
Keyword(s):  
Aluminum Sheet ◽  
Sheet Metals ◽  
Bonding Technology

Constitutive Equations of Stress-Strain Responses of Aluminum Sheet under Stress Path Changes

2013 ◽  
Vol 535-536 ◽  
pp. 101-104
Author(s):  
Takeshi Uemori ◽  
Satoshi Sumikawa ◽  
Shohei Tamura ◽  
Fusahito Yoshida
Keyword(s):  
Experimental Data ◽  
Constitutive Model ◽  
Present Author ◽  
Plastic Anisotropy ◽  
Stress Path ◽  
Aluminum Sheet ◽  
Light Weight ◽  
Sheet Metals ◽  
Proportional Loading ◽  
Strain Responses

Aluminum sheet metals have been widely utilized for a light weight construction of automobile. However, these metals still remain one of the difficult materials to predict the accurate final shapes after press forming processes, because of several mechanical weak features such as strong plastic anisotropy of yield stress, large Lankford value, and so on. In order to solve the problems, the present author has developed a new constitutive model. The model can describe accurate non-proportional hardening behaviors of an aluminum sheet metal. In the present research, several experimental procedures were carried out to reveal the mechanical properties of an aluminum sheet under proportional and non-proportional loading. From the comparisons between experimental data and the corresponding calculated results by the proposed constitutive model, the performance of our model was evaluated. The evaluation of some springback analyses were also carried out. The calculated results show good agreements with the corresponding experimental data.

Crystallography of the Low Angle Lamellar Band Boundaries in ARB- Processed Aluminum Sheet

2011 ◽  
Vol 702-703 ◽  
pp. 161-164
Author(s):  
M. Zakaria Quadir ◽  
Michael Ferry ◽  
P. R. Munroe
Keyword(s):  
Accumulative Roll Bonding ◽  
Structural Features ◽  
Aluminum Sheet ◽  
Extensive Investigation ◽  
Sheet Metals ◽  
High Angle ◽  
Structural Refinement ◽  
Roll Bonding ◽  
Dense Distribution ◽  
Crystallographic Orientations

Lamellar bands are the primary structural features in accumulative roll bonding (ARB) of sheet metals. The structural refinement in ARB sheets occur by forming a dense distribution of lamellar band boundaries. The lamellar band boundaries initiate as low angle interfaces, parallel to the existing lamellar band boundaries, irrespective of the crystallographic orientations of the parent lamellar bands. From an extensive investigation it was found that the transverse directions across the lamellar band boundaries are rotated by an angle equal to their misorientations. Such a phenomenon is not sustained when the boundaries turn to high angle.

Effect of Thickness on the Pure Stretchability of Aluminum Sheets

1990 ◽  
Vol 112 (4) ◽  
pp. 340-345 ◽  
Author(s):  
M. Kobayashi ◽  
Y. Kurosaki ◽  
N. Kawai
Keyword(s):  
Frictional Coefficient ◽  
Thickness Dependence ◽  
Aluminum Sheet ◽  
Sheet Metals ◽  
Aluminum Sheets ◽  
K Theory ◽  
Good Agreement ◽  
Diffuse Neck

The effects of the thickness, lubricant, and temper of metals on pure stretchability of aluminum sheets have been studied. The pure stretchability of the sheet metals was markedly deteriorated by decreasing both the thickness in every lubricant and the temper of metal used in this experiment. The optimum frictional coefficient, which gives a maximum of the critical forming depth, was found in this experiment, and it was confirmed to change with the thickness and temper of metal. The thickness dependence of the critical forming depth was analytically calculated by means of Hill’s diffuse neck criterion, Yamaguchi’s method based on M-K theory and the criterion proposed by Gotoh. The result calculated by Yamaguchi’s method was comparatively in good agreement with the experiment in soft aluminum sheet and the result by Gotoh’s method did so in the half-hard one.

scholarly journals Effects of Increased Tool Velocity on Mechanical Joining of Steel and Aluminum Sheet Metals

Procedia CIRP ◽  
2014 ◽  
Vol 23 ◽  
pp. 24-28 ◽  
Author(s):  
Mathias Jäckel ◽  
Christian Kraus ◽  
Thomas Kropp
Keyword(s):  
Aluminum Sheet ◽  
Sheet Metals ◽  
Mechanical Joining

Anisotropy in thin Canning sheet metals

2003 ◽  
Vol 105 ◽  
pp. 19-29 ◽  
Author(s):  
D. W.A. Rees
Keyword(s):  
Sheet Metals

Laser assisted forming of sheet metals

2001 ◽  
Author(s):  
Dieter Schuöcker ◽  
Friedrich Kilian ◽  
Christian Zeinar ◽  
Alexander Kratky
Keyword(s):  
Sheet Metals
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