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Licensed Unlicensed Requires Authentication Published by De Gruyter May 26, 2013

Production of Open Cell Aluminium Metal Foam with Lost Foam Technique

Produktion von offenporigem Aluminium-Metallschaum mittels Schaumausschmelztechnik
  • Kerem Altug Güler , Zeynep Taslicukur and Gökhan Özer
From the journal Materials Testing

Abstract

Metallic foams represent materials with low densities as well as good physical, mechanical, thermal, and electrical properties. Since they have pores, metal foams have a set of unusual properties compared with bulk structural materials, i. e. the can offer a unique combination of several properties that can not be obtained in one conventional material at the same time. Metal foams can be produced by different processing technologies and many of them are still under development. The lost foam technique is an alternative foundry process as compared to other conventional techniques. This paper reports about a new approach for the production of open-cell aluminium foam metal by such casting procedure. During the process, an expanded polystyrene cell has been used for pattern making and all critical steps for manufacturing open-cell metal foam by the new technique are described in detail.

Kurzfassung

Metallische Schäume stellen Materialien mit einer niedrigen Dichte und guten physikalischen, mechanischen, thermischen und elektrischen Eigenschaften dar. Da sie Poren haben, weisen Metallschäume gegenüber Massenstrukturwerkstoffen eine Reihe ungewöhnlicher Eigenschaften auf, d. h. sie offerieren eine einzigartige Kombination verschiedener Eigenschaften, die in einem konventionellen Werkstoff nicht gleichzeitig erhalten werden können. Metallschäume können mit verschiedenen Herstellungsverfahren produziert werden, von denen viele noch im Entwicklungsstadium sind. Die Schaumausschmelztechnik ist gegenüber den konventionellen Techniken ein alternativer Gießprozess zur Produktion von offenporigen Aluminiumschäumen, über den im vorliegenden Beitrag berichtet wird. Für den Prozess wurde eine erweiterte Polystyrolzelle verwendet, um das Gussmodell herzustellen und alle kritischen Schritte zur Herstellung offenporigen Metallschaumes mittels dieser neuen Technologie werden detailliert beschrieben.


Kerem Altug Güler, born in 1981, is research assistant at the Yildiz Technical University since 2004. He is also co-researcher in the Balkan Centre of Advanced Casting Technologies (BCACT). Presently, he is PhD student in the field of investment casting.

Zeynep Taslicukur, born in 1981, is research assistant at Yildiz Technical University since 2002 and finished her PhD in 2010. She is also co-researcher in the Balkan Centre of Advanced Casting Technologies (BCACT). Presently, she is studying advanced technology ceramics.

Gökhan Özer, born in 1978, is research assistant at the Yildiz Technical University since 2002. He is also co-researcher in the Balkan Centre of Advanced Casting Technologies (BCACT). Presently, he is PhD student in the field of casting of non-ferrrous metals.


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Published Online: 2013-05-26
Published in Print: 2011-05-01

© 2011, Carl Hanser Verlag, München

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