Investigation of Mechanical Vibration Parameters on AL-A380 using Taguchi Method for the Construction of vehicle’s Shell pinion and gearbox
Subject Areas : Composite Structures
Ehsan Safarpour
1
,
Amin Kolahdooz
2
1 - Department of Mechanical Engineering, Khominishahr Branch, Islamic Azad University, Khominishahr
2 - Assistant Prof., Department of Mechanical Engineering/Young Researchers and Elite Club, Islamic Azad University, Khomeinishahr Branch
Keywords: Microstructure, mechanical properties, Semi-solid casting, mechanical vibration, Taguchi test,
Abstract :
The main aim of this study is the investigation of the mechanical vibration parameters using Taguchi method in the semi-solid casting of AL-A380. This research has been done to improve the mechanical properties and the development of this alloy for the construction of the powertrains vehicle’s Shell pinion and gearbox. Grain diameter, hardness and porosity of samples were examined as important features of this research outputs. The results showed that the vibration of melt with suitable intensity and enough the period of time caused to decrease of the particle diameter and increase of the hardness. But with increasing of vibration intensity the porosity was increased especially at the high temperatures of vibration. In this research, the primary hardness that was measured around 80 BHN had increased to 100 BHN in condition of 595°C the melt temperature, vibration intensity of 90 Hz at the 30 seconds of the period of time. It was also observed in microstructure study that using this method, the microstructure was broken from the dendritic form to the spherical ones with the grain diameter of 32 micrometers.
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