Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1988
Title: Plunger Technique: A New Approach to Stir Casting AMMC Preparation
Authors: Samal, B P
Misra, A K
Panigrahi, S C
Mishra, S C
Keywords: AMMC-Aluminum metal matrix composites
stir casting
hollow shaft
composite
plunger rod
Issue Date: 2013
Publisher: STM Journals
Citation: Journal of Materials and Metallurgical Engineering,Volume 3, Issue 2, ISSN: 2231 - 3818
Abstract: Metal matrix composites (MMCs) are materials that are highly attractive for large range of hi-tech engineering applications. Keeping this in mind, materials for the present investigation were prepared by a drastically modified stir-casting technique where the usual solid shaft stirrer was replaced by a hollow/tubular spindle-stirring mechanism through which silicon carbide particulates in small cylindrical capsule were introduced to the aluminum-magnesium alloy matrix with the help of a plunger rod to obtain uniform distribution and low porosity in the product that are extremely important to this class of material. This plunger technique is a clear alternative to the established vortex route which is known to be the low-cost method amongst the lot. Interestingly, aluminum-magnesium alloy matrix material in this modified technique was also prepared similarly by directly introducing magnesium turning contained in mild-steel capsule plunger rod into Al-melt, which gives high Mg recovery (95%) in the alloy. It was found that modified stir-casting technique is simple to operate, smooth, trouble free, highly efficient and above all an inexpensive process in comparison to other methods.
Description: Copyright for this paper belongs to STM Journals
URI: http://hdl.handle.net/2080/1988
Appears in Collections:Journal Articles

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