Investigating the Machinability of Al-Si-Cu cast alloy containing bismuth and antimony using coated carbide insert

Barzani, M.M. and Sarhan, A.A.D. and Farahany, S. and Ramesh, S. and Maher, I. (2015) Investigating the Machinability of Al-Si-Cu cast alloy containing bismuth and antimony using coated carbide insert. Measurement, 62. pp. 170-178. ISSN 0263-2241, DOI https://doi.org/10.1016/j.measurement.2014.10.030.

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Abstract

Surface roughness and cutting force are two key measures that describe machined surface integrity and power requirement evaluation, respectively. This investigation presents the effect of melt treatment with addition of bismuth and antimony on machinability when turning Al-11 Si-2 Cu alloy. The experiments are carried out under oblique dry cutting conditions using a PVD TIN-coated insert at three cutting speeds of 70, 130 and 250 m/min, feed rates of 0.05, 0.1, 0.15 mm/rev, and 0.05 mm constant depth of cut. It was found that the Bi-containing workpiece possess the best surface roughness value and lowest cutting force due to formation of pure Bi which plays an important role as a lubricant in turning process, while Sb-containing workpiece produced the highest cutting force and highest surface roughness value. Additionally, change of silicon morphology from flake-like to lamellar structure changed value of cutting force and surface roughness during turning. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type:	Article
Funders:	This research was funded by the high impact research (HIR) Grant number: HIR-MOHE-D000023-16001 from the Ministry of Higher Education, Malaysia, University of Malaya Research Grant (UMRG) Program No. RP001B- 13AET and the University of Malaya Postgraduate
Additional Information:	Ay5ox Times Cited:0 Cited References Count:29
Uncontrolled Keywords:	Turning, aluminum alloy, melt treatment, surface roughness, chip morphology, metal-matrix composites, surface-roughness, aluminum-alloys, part i, microstructure, steel, tools, wear, sr,
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	23 Jul 2015 00:47
Last Modified:	23 Jul 2015 00:47
URI:	http://eprints.um.edu.my/id/eprint/13766

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