Plunger Technique: A New Approach to Stir Casting AMMC Preparation

Authors

  • B. P. Samal Maharaja Institute of Technology, Taraboi, Khurda, Odisha, India
  • A. K. Misra Krutika Institute of Technical Education, Bhubaneswar, Odisha, India
  • S. C. Panigrahi Rajadhani Engineering College, P. O. Mancheswar, Railway Colony, Bhubaneswar, Odisha, India
  • S. C. Mishra NIT Rourkela, Odisha-769008, India

Keywords:

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.

Author Biographies

  • B. P. Samal, Maharaja Institute of Technology, Taraboi, Khurda, Odisha, India
    Department of Mechanical Engineering
  • S. C. Mishra, NIT Rourkela, Odisha-769008, India
    Department of Metallurgical and Materials Engineering

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Published

2019-04-16

Issue

Vol. 3 No. 2 (2013)

Section

Articles

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