scholarly journals Examination of Mechanical and Electrical Properties and Structure of Selected Aluminum Alloy Sheets Produced from TRC Semi-Products

2017 ◽  
Vol 62 (4) ◽  
pp. 2237-2245
Author(s):  
W. Ścięźor ◽  
G. Kiesiewicz ◽  
R. Kowal ◽  
K. Franczak ◽  
J. Grzebinoga ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Casting Technology ◽  
Post Process ◽  
Mechanical And Electrical Properties ◽  
Ferrous Metals ◽  
Roll Casting ◽  
Single Process ◽  
Modern Manufacturing ◽  
Cold Rolled ◽  
Twin Roll

AbstractModern manufacturing methods of non-ferrous metals, especially aluminum and its alloys, are more and more often based on integrated technologies combining multiple operations in a single process. One of the most popular methods for producing flat components by cold working is twin roll casting technology (TRC). It allows to eliminate from manufacturing the extremely expensive hot rolling operation, as the TRC semi-product (strip) can be directly cold rolled. The results of mechanical and electrical properties and structure examination of strips after casting were presented in the paper. The effect of cold rolling parameters on post-process mechanical properties and structure of sheets was investigated too.

Roll Casting and Die Casting of Si-Added Al-Mg Alloy

2020 ◽  
Vol 1007 ◽  
pp. 12-17
Author(s):  
Toshio Haga ◽  
Shinichiro Imamura ◽  
Hiroshi Fuse ◽  
Hisaki Watari ◽  
Shinichi Nishida
Keyword(s):  
High Speed ◽  
Die Casting ◽  
Sheet Forming ◽  
Mg Alloy ◽  
Tension Tests ◽  
Roll Casting ◽  
Cold Rolled ◽  
Twin Roll Caster ◽  
Si Content ◽  
Twin Roll

Si ranging from 0.2 mass% to 2.0 mass% was added to Al-5%Mg alloy (5182) and strip was cast by a vertical type high-speed twin-roll caster at a speed of 80 m/min. The as-cast strip was cold-rolled down to 1 mm thickness and annealed. The mechanical properties were investigated using cup tests and tension tests. The limiting draw ratio (LDR) of the 5182 alloy was 2.0 and the LDR became smaller as the Si content increased. When the Si content was 2.0 mass%, the LDR was 1.8, which shows that Si-added 5182 can be used for sheet forming, if the Si content is less than 2.0 mass%. The tensile strength and elongation were almost constant when the Si content was less than 1 mass%, but decreased at 2.0 mass% Si. However, the elongation was greater than 20% at 2.0 mass% Si. For die casting, 2.0 mass% Si was determined as the appropriate content from the results of the tension tests. When the Si content is in the range from 1.0 mass% to 2.0 mass%, then the Si added Al-5%Mg has the ability to be used for both die casting and sheet forming.

Roll Casting of Al-SiCp Strip

2011 ◽  
Vol 675-677 ◽  
pp. 811-814 ◽  
Author(s):  
Toshio Haga ◽  
Teppei Nakamura ◽  
S. Kumai ◽  
H. Watari
Keyword(s):  
Hot Rolling ◽  
High Speed ◽  
Strip Casting ◽  
Cast Strip ◽  
Fine Grain ◽  
Roll Casting ◽  
Speed Up ◽  
Cold Rolled ◽  
Twin Roll Caster ◽  
Twin Roll

The strip casting of Al-SiCp alloy was operated by a high speed twin roll caster. The content of SiCp was 20Vol% and 30Vol%. Both of Al-20Vol%SiCp and Al-30Vol%SiCp strips could be cast continuously at the speed up to 90m/min. The SiCp particle distributed uniformly. This was the effect of fine grain of the strip. The as-cast strip of Al-20Vol%SiCp could be cold rolled after homogenization. The as-cast strip of Al-30Vol%SiCp could be cold rolled after once hot rolling and annealing. The as-cast strip of Al-20Vol%SiCp could be coiled at the diameter of 460mm.

scholarly journals Texture analysis of cold rolled and annealed aluminum alloy produced by twin-roll casting

2011 ◽  
Vol 15 (1) ◽  
pp. 97-102 ◽  
Author(s):  
Juliana de Paula Martins ◽  
André Luis Moreira de Carvalho ◽  
Angelo Fernando Padilha
Keyword(s):  
Aluminum Alloy ◽  
Texture Analysis ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Cold Rolled ◽  
Twin Roll

Semisolid Roll Casting of Aluminum Alloy Strip and Its Properties

2006 ◽  
Vol 116-117 ◽  
pp. 379-382 ◽  
Author(s):  
Ryoji Nakamura ◽  
Hideki Inui ◽  
Hisaki Watari ◽  
Shinji Kumai
Keyword(s):  
Tension Test ◽  
Semisolid Slurry ◽  
Alloy Strip ◽  
Proof Stress ◽  
Cooling Slope ◽  
Roll Casting ◽  
Heat Treated ◽  
Cold Rolled ◽  
Twin Roll Caster ◽  
Twin Roll

A356 was cast into the strip by the semisolid strip casting using an unequal diameter twin roll caster. This process was one of the rheocasting. The semisolid slurry was made by a cooling slope. Solid fraction was about 5%. The casting speed was 20 m/min, and the thickness was 4.4 mm. The as-cast strip could be cold rolled down to 1 mm. The result of tension test of 1mm-thickness-T4 heat-treated strip was as below. Tensile stress was 223 MPa, 0.2 proof stress was 123 MPa and elongation was 21.8%. Deep drawing could be operated to 1 mm-thickness T4 sheet, and L.D.R was attained to 2.0. In some condition, 180 degrees bending could be operated without crack at outer surface. These results mean that semisolid roll cast A356 strip may be able to use for press forming.

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