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Vol. 2. Issue 1.
Pages 36-42 (January - March 2013)
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Vol. 2. Issue 1.
Pages 36-42 (January - March 2013)
Original Article
DOI: 10.1016/j.jmrt.2013.03.008
Open Access
Quantification of volume deficit of rectangle shaped cast aluminium alloys
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Samavedam Santhia,
Corresponding author
santhi_samave@yahoo.com

Corresponding author.
, Dharwada Hanumantha Raob, Srinivasan Sundarrajanc
a MGIT, Hyderabad, India
b MVSR Engineering College, Hyderabad, India
c National Institute of Technology, Trichy, India
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Abstract

Volume deficit of rectangular shape US 413 and US A356 cast aluminium alloy has been estimated in the present study. The decrease in specific volume directs to a volume deficit in castings and it has been shown as a defect. The volume deficit can be classified as macro cavities, internal porosity, surface sinking and volumetric contraction and measured using mathematical formulae; the actual volume deficit of the given casting was obtained by adding all the defects. Quantification of internal closed porosity has been addressed through X-ray computer tomography. The information regarding the volume deficit and its distribution is critical in minimizing casting defects.

Keywords:
Aluminium alloys
Casting
Volume deficit
Solid model
X-ray Computer Tomography
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Copyright © 2013. Brazilian Metallurgical, Materials and Mining Association
Journal of Materials Research and Technology

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