High speed twin roll casting of 6016 strip

• Autorzy: Haga T. , Ikawa M. , Watari H. , Kumai S.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this paper is to clear the possibility of high speed roll casting of thin aluminum alloy strip. 6016 aluminum alloy is used for sheet metal of the automobile. Therefore, casting of 6016 was tried in this study. Castability and characteristics of roll cast 6016 strip were investigated. Design/methodology/approach: was a high speed twin roll caster. The high speed twin roll caster was designed to overcome the low castability of the twin roll caster. Findings: are as below. The 6016 could be cast at speed of 60 m/min. The thickness of the 6016 was 3 mm. The microstructure at as-cast and after T6 heat treatment was shown. The microstructure was very fine by the effect of the rapid solidification. The mechanical properties were investigated by the tension test and 180 degrees bending test. The as-cast strip could be cold rolled down to 1 mm without homogenization. The result of tension test (gage length 50mm) of T4 strip was as below, tensile stress was 242 MPa, proof stress was 123 MPa and elongation was 26%. There was no crack at the outer surface of 180-degree-bent strip until contact. This shows the strip endure the hem forming. Research limitations/implications: is the width of the strip was 100 mm. The test using a large scale twin roll caster must be operated. Practical implications: are as below. The mechanical properties of the roll-cast 6016 were enough for the sheet metal for the automobile. The low productivity of the twin roll caster could be improved, and economy 6016 strip was able to produce. Originality/value: is that 6016 strip could be cast at speed 60 m/min and this strip had good mechanical properties.

Słowa kluczowe

EN

casting; high speed twin roll casting; strip casting; sheet metal

PL

odlewanie; prędkość odlewania; odlewanie taśmy; cienka blacha

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 371--374
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Haga T.

• Osaka Institute of Technology, 5-16-1 Omiya Asahiku Osakacity, 535-8585, Japan

autor

Ikawa M.

• Osaka Institute of Technology, 5-16-1 Omiya Asahiku Osakacity, 535-8585, Japan

autor

Watari H.

• Oyama National Technical College of Technology, 771, Nakakuki, Oyama city, Tochigi, 323-0806, Japan

autor

Kumai S.

• Tokyo Institute of Technology, 4259, Nagatsuda, Midoriku, Yokohama city, Kanagawa, 226-8502, Japan

Bibliografia

• [1] T. Haga, S. Suzuki, Roll casting of aluminum alloy strip by melt drag twin roll caster, J.Mater.Process. Technol., 118 (2001)165-168.
• [2] T. Haga, S. Suzuki, Melt ejection twin roll caster for the strip casting of aluminum alloy, ibid., 137 (2003)92-95.
• [3] T. Haga, S. Suzuki, Strip casting of A5182 alloy using a melt drag twin roll caster, ibid.,133(2003)103-107.
• [4] T. Haga, S. Suzuki, Study on high-speed twin-roll caster for aluminum alloys, ibid.,143(2003)895-900.
• [5] T. Haga, K. Takahashi, Twin roll casting of aluminum alloy strips, ibid.,153(2004)42-47.
• [6] S. Kumai, K. Suzuki, Y. Saito, T. Haga, Significance of rapidly solidified aluminum alloy strips for high quality recycling, Trans. MRSJ, 29(2004)1817-1822.
• [7] T. Haga, M. Ikawa, S. Kumai, A high speed twin roll caster for aluminum alloy thin strip, ibid., 29(2004)1823-1828.
• [8] T. Haga, M. Ikawa, S. Kumai, High-speed twin roll casting of thin aluminum alloy strips containing Fe impurities, materials Transactions, 46(2005) 2596-2601.
• [9] K. Suzuki, S. Kumai, Y. Saito, T. Haga, High-speed twin roll casting of Al-Mg-Si alloys with high Iron content, ibid., 46 (2005)2602-2608.
• [10] T. Haga, M. Ikawa, S. Kumai, 6111 aluminum alloy strip casting using an unequal diameter twin roll caster, J .Mate. Process, Technol., 172 (2006) 271-276.
• [11] Aluminum International Today, Nov./Dec.(2002),36.
• [12] T. Motegi, N. Ogawa, Continuous casting of semisolid Al-Si-Mg alloy, Proc. of the International Conference on Aluminum Alloys”ICAA-6” Toyohashi Japan, 1998, 297-326.
• [13] T. Haga, Semisolid strip casting using a twin roll caster equipped with a cooling slope, J.Mater.Process.Technol., 130 (2002)558-561.
• [14] T. Haga, P.Kapranos, Billetless simple thixoforming process, ibid.,130(2002)581-586.
• [15] T. Haga, P. Kapranos, Simple rheocasting process, ibid., 130(2002)594-598.