Comparison of Mechanical Properties of 357-T6 Aluminum Alloy Aast under Gravity Permanent Casting and Low Pressure Die Casting

Abstract:

357-T6 is an alloy that has been widely used due to excellent casting properties and mechanical performances. The aluminum wheels can be cast with both permanent and low pressure die castings. In this study, the mechanical properties of 357-T6 were compared between the gravity permanent casting (GPC) and low pressure die casting (LPDC). The specimens were cast through permanent and LPDC processes, respectively and were heat treated under T6, with different aging temperatures 155°C, 165°C, 175°C and 185°C after the solution treatment of 545°C for 9 hours. The ultimate tensile strength and elongation were tested for both processes. The results show that both tensile and elongation of low pressure die casting specimens are higher remarkably than those in gravity permanent casting. The optimized aging parameter is heating at 175°C for 4.5 hours after solution treatment.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 77-80
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.77
• Online since: June 2014
• Authors: Ping Chen, Jian Min Zeng*, Wu Kui Gan, Jin Bo Liu
• Keywords: 357 Aluminum Cast Alloy, Aging, GPC, LPDC

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