Effects of production parameters on characteristics of magnesium alloy sheets manufactured by twin-roll casting

• Autorzy: Watari H. , Haga T. , Davey K. , Koga N. , Yamazaki T.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of the work is to establish a manufacturing process and technology to facilitate the economical manufacture of high-quality magnesium sheet alloys. Design/methodology/approach: Magnesium alloy AZ31B was used to investigate the appropriate manufacturing conditions for use in twin-roll strip casting. Temperatures of the molten materials and roll speeds were varied to find the appropriate manufacturing conditions. The effects of manufacturing conditions on possible forming were clarified in terms of roll speeds and roll gaps between upper and lower rolls. Findings: In the hot-rolling process, a temperature exceeding 200°C was chosen to keep cast products from cracking. An appropriate annealing temperature was effective for homogenizing the microstructure of the rolled cast sheets after the strip casting process. The grain size of the manufactured wrought magnesium alloys sheet was less than 10 micrometers. The obtained magnesium alloy sheet exhibited an equivalent limiting drawing ratio in a warm-drawing test. Research limitations/implications: AZ31 were used to investigate the appropriate manufacturing conditions for use in twin-roll strip casting. Casting temperatures were varied from 630°C to 670°C to find the best casting conditions. Roll casting speeds were varied from 5m/min to 30 m/min in order to examine which roll speed was appropriate for solidifying the molten magnesium. Practical implications: It was found that the cast magnesium sheet manufactured by roll strip casting could be used for plastic forming if the appropriate magnesium sheets were produced after the roll casting process. Originality/value: This paper showed the effectiveness of twin roll casting for magnesium alloys by a horizontal roll caster.

Słowa kluczowe

EN

manufacturing; processing; casting; plastic forming; magnesium alloy; twin roll caster

PL

produkcja; przetwarzanie; odlew; obróbka plastyczna; stop magnezu

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 16, nr 1-2
• Strony: 171--176
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Watari H.

• Department of Mechanical Engineering, Oyama National College of Technology, 771 Nakakuki, Oyama 323-0806, Japan

autor

Haga T.

• Department of Mechanical Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan

autor

Davey K.

• School of Mechanical, Aerospace & Civil Engineering, The University of ManchesterPO BOX 88 Sacville Street, Manchester, M60 1QD, United Kingdom

autor

Koga N.

• Department of Mechanical Engineering, Nippon Institute of Technology,4-1 Gakuen-dai, Miyashiro-machi, Minami-saitama-gun, Saitama-ken 345-8501 Japan

autor

Yamazaki T.

• Department of Mechanical Engineering, Oyama National College of Technology, 771 Nakakuki, Oyama 323-0806, Japan

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