Evaluation of Friction Coefficient by Ring Compression of Magnesium Alloys

Abstract:

Magnesium alloy is known for its light weight and high strength. Due to the desirable properties, Magnesium alloy is required in the fields such as transportation from the energy-saving point of view. The development of forming methods is especially highly expected. In order to manufacture productions of high dimensional accuracy with good surface finish without defects, it is important to evaluate tribological characteristics of forging of Magnesium alloys. In this paper, the friction coefficients were measured by the ring compression test. It compresses a ring specimen between parallel tools and is the method for the friction coefficient by the rate of change of the inside diameter. The friction coefficients of several kinds of Magnesium alloys have been evaluated depending on temperature, compression speed, and the kind of the lubricant here.

• Periodical: Advanced Materials Research (Volume 1064)
• Pages: 9-14
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1064.9
• Online since: December 2014
• Authors: Li Qun Ruan, Akihide Maeda, Shunsuke Ezaki, Shirley Shen
• Keywords: Calibration Curve, Forging, Friction, Inside Diameter, Lubricant, Magnesium Alloy, Ring Compression

References

[1] L. Chaing, H. Hosokawa, J. Wang, T. Uesugi, Y. Takigawa and K. Higashi, Investigation of Dynamic Friction Properties of Extruded AZ31 Magnesium Alloy by Ring – Typed Compressive Testing, Journal of the JSTP, vol. 49 no. 572(2008-9), pp.901-905.

DOI: 10.9773/sosei.49.901

[2] R. Matsumoto, Fundamental researches about no lubrication, a very small amount of lubrication of the plasticity processing, Osaka University, 15-17 (2003).

[3] K. Fukuda, Study on Tribological characteristics of magnesium alloy in the local drawing, Master's thesis, Kumamoto University (2012).

[4] S. Ezaki, Evaluation of tribological properties in the molding of magnesium alloy, Graduation thesis, Kumamoto University (2013).