Tribological studies on discontinuously reinforced aluminum composites based on the orthogonal arrays

Shetty, Raviraj and Pai, Raghuvir B and Rao, Srikanth S (2008) Tribological studies on discontinuously reinforced aluminum composites based on the orthogonal arrays. ARPN Journal of Engineering and Applied Sciences, 3 (1). pp. 84-92. ISSN 1819-6608

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The development of metal matrix composites with reinforced Aluminum composites (DRACs) represents a well-established method for improving the strength and stiffness of a material. When DRACs are being chosen for high volume and machine-intensive components, it is crucial that the tribological conditions during machining of the DRACs be understood since it is greatly different from aluminum alloys. The machinability of DRACs has been investigated actively worldwide since the 1980s, and most researchers have found that polycrystalline diamond (PCD) or cubic boron nitride tools can be used to machine DRACs effectively. Driven by the high cost of these tools, it is still desirable to optimize the cutting conditions, such as the effect of cutting fluid, since there has been no comprehensive study undertaken in this area. This paper reports on the experimental investigations carried out under dry, oil water emulsion and steam lubricated conditions in turning of DRACs. The experiments were planned on orthogonal arrays, made with prefixed cutting parameters and different lubricated conditions. An analysis of variance (ANOVA) was carried out to check the validity of the proposed parameters and also their percentage contributions. The results of the tests show that with proper selection of the range of cutting parameters, it is possible to obtain better performance under steam lubricated condition.

Item Type: Article
Uncontrolled Keywords: metal, aluminum, composites, arrays, DRACs, machinability.
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 11 Oct 2014 08:58
Last Modified: 11 Oct 2014 08:58

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