Semi-solid gravity sand casting using gas induced semi-solid process

The semi-solid metal forming using high pressures has been applied for several years. In contrast, low pressure casting, such as gravity sand casting, has not been widely studied even though it may help reduce porosity defects and offer a better casting yield. A semi-solid gravity sand casting proce...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2010-09, Vol.20, p.s981-s987
Main Authors: CHUCHEEP, T., BURAPA, R., JANUDOM, S., WISUTMETHANGOON, S., WANNASIN, J.
Format: Article
Language:English
Subjects:
Al7Si0.3MgFe
Defects
Elongation
gas induced semi-solid
Gravitation
gravity sand casting
Liquids
Low pressure
Pressure casting
Sand casting
Semi-solid processing
semi-solid sand cast
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Summary:The semi-solid metal forming using high pressures has been applied for several years. In contrast, low pressure casting, such as gravity sand casting, has not been widely studied even though it may help reduce porosity defects and offer a better casting yield. A semi-solid gravity sand casting process using the Gas Induced Semi-Solid process was investigated. The results show that the process can produce complete parts with no observable defects. The ultimate tensile strength and elongation data of semi-solid cast samples are higher than those of the liquid cast samples. In addition, the semi-solid sand casting process gives a better casting yield. It can be concluded that the semi-solid sand casting of an aluminum alloy using the GISS process is a feasible process.
ISSN:1003-6326
DOI:10.1016/S1003-6326(10)60617-6