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A study on the squeeze casting of Al-7.0Si-0.4Mg alloy for fuel system parts  

Kim Soon-Ho (Department of Automotive mechanical Engineering, Silla University)
Kim Seong-Soo (Department of Automotive mechanical Engineering, Silla University)
Publication Information
International Journal of Precision Engineering and Manufacturing / v.6, no.3, 2005 , pp. 56-59 More about this Journal
Abstract
Aluminum alloy casting is gaining increased acceptance in automotive and electronic industries and especially, squeeze casting is the most efficient method of mass manufacturing of such parts. In this study, the microstructures and mechanical properties of Al-7.0Si-0.4Mg(AC4C) alloy fabricated by squeeze casting process for development of fuel system parts (fuel rail) are investigated. The microstructure of squeeze cast specimen was composed of eutectic structure aluminum solid solution and $Mg_2Si$ precipitates. The tensile strength of as-solid solution treatment Al-7.0Si-0.4Mg alloy was 298.5MPa. It was found that Al-7.0Si-0.4Mg alloy had good corrosion resistance in electrochemical polarization test.
Keywords
Squeeze casting; Al-7.0Si-0.4Mg alloy fuel rail; Electrochemical polarization test;
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