Synthesis and machining characterization of ultrasonication assisted stir cast SiCp reinforced aluminum nanocomposites
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- 作者：L. Poovazhagan ; K. Jayakumar ; kjayakumar@ssn.edu.in" class="auth_mail" title="E-mail the corresponding author ; R. Bharat ; Kailash Viswanathan ; M. Akshay ; Adithya Jaikumar
- 关键词：Aluminum-SiC nanocomposites ; Turning ; Surface roughness ; Cutting force ; T6 heat treatment
- 刊名：Materials Today: Proceedings
- 出版年：2016
- 出版时间：2016
- 年：2016
- 卷：3
- 期：6
- 页码：2339-2346
- 全文大小：574 K
文摘
Nano ceramic particulates reinforced metal nanocomposite materials have shown tremendous potential in different fields of engineering due to their high wear resistance, thermal stability and strength to weight ratio. In the present study, AA6061 aluminium alloy reinforced with 0, 0.5 and 1 weight percentage of nano silicon carbide (average size 50 nm) particulate composites were fabricated using the ultrasonication assisted casting method. Besides the outstanding properties and applications of nano metal matrix composites, turning is one of the major machining processes used to make real product from the composite with near net shape and tolerance. Turning studies were conducted based on the Taguchi L9 orthogonal array with four factors and three level combinations. The parameters considered were weight percentage of SiC, cutting speed, feed and depth of cut. The effect of addition of reinforcement and cutting parameters on cutting force and surface roughness were measured and analysed. The results showed that, apart from machining parameters, increase in reinforcement on the matrix, increased the force from 20.2 to 122.7 N and average surface roughness from 3.06 to 7.69 μm. When the SiC particulate content and machining parameters are the same, turning at T6 heat treatment improved the surface finish but increased the cutting force due to increase in hardness and strength.