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http://dx.doi.org/10.7735/ksmte.2012.21.4.593

Improvement in Mechanical Properties of AZ91D Mg-Alloy through Thixomolding Process  

Shin, Dong-Soo (한양대학교 산업과학연구소)
Chung, Sung-Chong (한양대학교 기계공학부)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.21, no.4, 2012 , pp. 593-600 More about this Journal
Abstract
Thixomolding of Mg-alloy is a semi-solid injection molding process utilizing thixotropic phenomenon. Using this process, higher strength, thinner wall section and tighter tolerance without porosity are obtained. It has been applied for production of near-net-shape magnesium component. To design optimal thixomolding process of Mg-alloy part, molding conditions such as slurry temperature, mold temperature and injection time should be determined properly. Selection of these parameters has been dependent upon engineers' experience and intuitiveness. In this paper, to improve mechanical properties of the thixomolded product, optimal selection of process variables such as injection velocity, barrel temperature and die temperature in the process has been studied through microstructural analysis and Taguchi method. Performance of the process is verified through experiments.
Keywords
AZ91D; Mechanical property; Mg-alloy; Microstructure; Semi-solid Injection; Thixotropy;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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