Development of Aluminum Alloy AA5754 Production with a Different Magnesium Content by a Twin-Roll Casting Process

Metallurgist ◽  
2015 ◽  
Vol 59 (7-8) ◽  
pp. 705-711
Author(s):  
K. Turbalioglu ◽  
Y. Sun ◽  
Y. Türen
Keyword(s):  
Aluminum Alloy ◽  
Casting Process ◽  
Magnesium Content ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

Twin Roll Casting of Aluminium Alloy ADC12, A3003, A7075

2017 ◽  
Vol 735 ◽  
pp. 18-23
Author(s):  
Yuta Kashitani ◽  
Shinichi Nishida ◽  
Junshi Ichikawa ◽  
Hiroto Ohashi ◽  
Naoshi Ozawa ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloy ◽  
Casting Process ◽  
Rolling Process ◽  
Alloy Strip ◽  
High Tensile Strength ◽  
Experimental Conditions ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

This paper describes a vertical type twin roll strip casting process for producing aluminum alloy strip of ADC12, A3003 and A7075. Twin roll casting process is able to produce a strip from molten metal directly. Thus this process has a possibility to reduce total cost of sheet making comparing to conventional rolling process. Aluminum alloy ADC12 is a casting material that is used for die casting. A3003 is known as a wrought aluminum alloy for aluminum can body sheet. The A3003 sheet is generally produced by rolling, so it is effective for reducing a process cost to produce the strip by twin roll casting process. Aluminum alloy A7075 has high tensile strength, and it is known as a material for aerospace application. The sheet is manufactured in small quantities comparing to the other sheet aluminum alloy. It is supposed that the demand of high tensile strength aluminum sheet such as A7075 is going to increase for weight saving of structural material. In this study, twin roll casting experiment was performed to produce these three aluminum alloy strip in same experimental conditions. Castability, surface conditions and strip thickness were estimated. It was possible to cast these aluminum alloy strip.

Effect of Secondary Cooling on Non-Oriented Electrical Steel Strips Produced by Twin-Roll Casting Process

2013 ◽  
Vol 690-693 ◽  
pp. 218-221
Author(s):  
Ting Zhang ◽  
Xiao Ming Zhang ◽  
Zhi Yuan Guo ◽  
Yu Qian Wang ◽  
Cheng Gang Li
Keyword(s):  
Electrical Steel ◽  
Casting Process ◽  
Air Cooling ◽  
Secondary Cooling ◽  
Twin Roll Casting ◽  
Steel Strips ◽  
Roll Casting ◽  
Average Size ◽  
Equiaxed Grains ◽  
Twin Roll

Effect of secondary cooling on non-oriented electrical steel strips was investigated. The 2.0 mm thick cast strips contain two compositions were produced by twin-roll casting process, cooled in the air or cooled by spraying water. The microstructure was observed by optical microscopy, and EBSD was used to characterize the texture of the cast strips. The results showed that air-cooling cast strips have uniform and equiaxed grains with average size of 250 μm. The microstructure of the water-spraying cast strips compose of most equiaxed grains and a small number of abnormal big grains. At the same time, the secondary cooling rate mildly affects the cast texture strength but has no influence on the texture type.

Effect of Magnetostatic Field on Microstructure of 7075 Aluminum Alloy Strip Manufactured by Twin-Roll Casting

2013 ◽  
Vol 652-654 ◽  
pp. 2427-2431 ◽  
Author(s):  
Xin Su ◽  
G M Xu ◽  
Y H Feng
Keyword(s):  
Electromagnetic Field ◽  
Aluminum Alloy ◽  
Central Zone ◽  
Alloy Strip ◽  
7075 Aluminum Alloy ◽  
Magnetostatic Field ◽  
Dendritic Crystal ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

In this paper, the effect of magnetostatic field on the microstructure and microsegregation of 7075 aluminum alloy strip by twin-roll casting is researched , and the result shows that when no electromagnetic field is applied during the process of roll-casting , the microstructure of 7075 strip is most composed of coarse columnar and dendritic crystal , the direction of grains is equal to roll-casting direction. When the magnetostatic field with 0.13T intensity is applied during the twin-roll casting, the microstructural of strip becomes uniform ,refined and equiaxed at the central zone of strip, and the dendritic crystal at the surficial is disordered and refined significantly.

Thin Gauge Twin-Roll Casting, Process Capabilities and Product Quality

2013 ◽  
pp. 989-996 ◽  
Author(s):  
O. Daaland ◽  
A. B. Espedal ◽  
M. L. Nedreberg ◽  
I. Alvestad
Keyword(s):  
Product Quality ◽  
Casting Process ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

scholarly journals A Novel Approach to Improve the Microstructure and Mechanical Properties of Al–Mg–Si Aluminum Alloys during Twin-Roll Casting

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1713 ◽  
Author(s):  
Yong Li ◽  
Chen He ◽  
Jiadong Li ◽  
Zhaodong Wang ◽  
Di Wu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Crystallization Front ◽  
Alloying Elements ◽  
Cast Slab ◽  
Energy Dispersion Spectroscopy ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll Cast ◽  
Twin Roll

The main purpose of this present study was to investigate the different processing conditions on the microstructure, segregation behavior of alloying elements, and mechanical properties of Al−Mg−Si alloy twin-roll cast slab prepared using a novel twin-roll casting technology. The simulation of temperature field, distribution of alloying elements, tensile properties, hardness, and conductivity were examined by a Leica optical microscope, scanning electron microscopy, energy dispersion spectroscopy, electron probe microanalysis, and tensile tests. The results indicated that when the traditional twin-roll casting method was used to produce aluminum alloy strip, there are obvious centerline segregation defects due to the deep crystallization front depth and symmetrical solidification characteristics. When the forced-cooling technology was applied in the twin-roll casting process, by virtue of the changing of crystallization front depth and crystallization front shape, the segregation defects are obviously suppressed. Suggesting that this method can significantly improve the uniformity of alloying elements in the thickness direction of the twin-roll cast slab, ultimately improve the mechanical properties of AA6022 aluminum alloy.

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