Machining characteristics of Nanocomposites

Umashankar, K S and Gangadharan, K V and Desai, Vijay and Shivamurthy, B (2011) Machining characteristics of Nanocomposites. Advanced Materials Letters, 2 (3). pp. 222-226. ISSN 0976-3961

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Abstract

Nanocomposites were prepared with Al/Al-Si alloys (LM 6 and LM 25) as matrix and multi wall carbon nanotube (MWNT) of 0.25, 0.5, 0.75, 1.0 and 1.5 wt. % as reinforcement through powder metallurgy (PM) followed by sintering and hot extrusion techniques. Fabricated nanocomposites were machined on a Panther 1530/1650 lathe by using tungsten carbide tool. Recurrence quantification analysis (RQA) was used to study the machining characteristics by using cutting force signal stability. Highest value of determinism (DET-one of the RQA parameter) was observed for 0.5 wt.% MWNT reinforced Al and Al-Si nanocomposites. This attributes better machining characteristic due uniformity of the signals. Also it is observed better mechanical properties at 0.5 wt.% reinforced nanocomposite and further reinforcement deteriorate the machinability and mechanical properties.

Item Type: Article
Additional Information: Copyright © 2011 VBRI press
Uncontrolled Keywords: Aluminum; Carbon nanotube; Machining; Recurrence plot; RQA.
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 04 Mar 2013 05:04
Last Modified: 04 Mar 2013 05:04
URI: http://eprints.manipal.edu/id/eprint/78826

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