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Characteristics of Hot Forming of Magnesium Alloys for Light-weight Valves  

Park, Joon-Hong (Department of Mechanical Engineering, Dong-A University)
Lee, Joon-Ho (Technical Center for High-Performance Valves, Dong-A University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.11, no.4, 2012 , pp. 173-179 More about this Journal
Abstract
In recent years, Magnesium(Mg) and its alloys have become a center of special interest in the automotive industry. Due to their high specific mechanical properties, they offer a significant weight saving potential in modern vehicle constructions. Most Mg alloys show very good machinability and processability, and even the most complicated die casting parts can be easily produced. In this study, Microstructure, Vickers hardness and tensile tests were examined and performed for each specimen to verify effects of forming conditions. Also to verify upsettability and forming limit of the specimen at room temperature and elevated temperature, upsetting experiments were performed. For comparison, experiments at elevated temperature were performed for various Mg alloy, such as AZ31, AZ91, and AM50. The experimental results were compared with those of CAE analysis to propose forming limit of Magnesium alloys.
Keywords
Magnesium Alloy; Forming Analysis; CAE Analysis; Mechanical Property; Diecasting;
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