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Development of High-strength Piston Material with High Pressure Die Casting
Technical Paper
2006-01-0986
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The technology for a new, high-strength piston material has been developed by using high pressure die casting (HPDC) method, which had a rapid rate of solidification. This method allowed the amount of Ni added to be increased to 5.5 mass%, raising the fatigue strength of the new material at temperatures of 523 K or higher by a factor of 1.5 over that of a conventional material made by gravity die casting (GDC). In addition, application of vacuum to the die cavity and using additional pressure enabled quality exceeding that of conventional GDC pistons. Pistons made from the newly developed material decreased engine friction by 4.4% and increased fuel efficiency by 2.2% in engine bench testing.
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Citation
Tanihata, A., Sato, N., Katsumata, K., and Shiraishi, T., "Development of High-strength Piston Material with High Pressure Die Casting," SAE Technical Paper 2006-01-0986, 2006, https://doi.org/10.4271/2006-01-0986.Also In
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