Research Article | OPEN ACCESS
Chip Formation in the Machining of Al-Si/10% AlN Metal Matrix Composite by using a TiN-coated Carbide Tool
1M.S. Said, 2J.A. Ghani, 2C.H. Che Hassan, 1J.A. Shukor, 3M.A. Selamat and 4R. Othman
1Manufacturing Section, Universiti Kuala Lumpur Malaysian Spanish Institute, 09000 Kulim Hi-Tech Park, Kulim Kedah
2Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor
3Structural Materials Programme, Advance Materials Research Centre (AMREC), SIRIM, Berhad, Lot 34, Jalan Hi-Tech 2/3, Kulim Hi-Tech Park, 09000 Kulim, Kedah
4 Mechanical Section, Universiti Kuala Lumpur Malaysian Spanish Institute, 09000 Kulim Hi-Tech Park, Kulim Kedah, Malaysia
Research Journal of Applied Sciences, Engineering and Technology 2016 6:422-426
Received: October 15, 2014 | Accepted: November 13, 2014 | Published: September 15, 2016
Abstract
This paper presents a study on chip formation in the milling process of Al-Si/10% AlN Metal Matrix Composite (MMC). It focuses on the effect of cutting parameters on the formation of the chip. Al-Si/10% AlN MMC reinforced with 10% AlN particle is a new-generation material that is suitable for manufacturing automotive and aerospace components. Several advantageous characteristics of this material include low density, light weight, high strength, high hardness and high stiffness. The milling process was carried out at dry cutting conditions by using TiN-coated carbide tool insert, which was developed by Standards and Industrial Research Institute of Malaysia (SIRIM). The machining parameters were as follows: a constant cutting speed of 230 m/min, feed rates of 0.4, 0.6 and 0.8 mm/tooth and cutting depths of 0.3, 0.4 and 0.5 mm. The analysis of the chip formation was performed using a video microscope (Sometech, SV-35). The chips were formed because of the shear between the work pieces and the cutting chips during dry milling of Al-Si/10% AlN MMC. These chips were small, short and discontinuous with outer face cracks.
Keywords:
Al-Si/10% AlN Metal Matrix Composite (MMC), chip formation, milling process, TiN,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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The authors have no competing interests.
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