Plunger Technique: A New Approach to Stir Casting AMMC Preparation

Autor/innen

  • B. P. Samal Maharaja Institute of Technology, Bhubaneswar, Odisha, India
  • A. K. Misra
  • S. C. Panigrahi
  • S. C. Mishra

Schlagwörter:

AMMC-Aluminum metal matrix composites, stir casting, hollow shaft, composite, plunger rod

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.  

Autor/innen-Biografie

  • B. P. Samal, Maharaja Institute of Technology, Bhubaneswar, Odisha, India
    Professor, Dept. of Mech. Engineering

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Veröffentlicht

2013-08-02

Ausgabe

Bd. 3 Nr. 2 (2013)

Rubrik

Research Articles

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