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Comparison of cutting mechanism when machining micro and nano-particles reinforced SiC/Al metal matrix composites

Lookup NU author(s): Xiangyu Teng, Dr Wanqun Chen, Dr Dehong Huo, Dr Islam Shyha

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Abstract

© 2018 Elsevier Ltd Recently, metal matrix composites (MMCs) reinforced with nano-particles receive increasing attention from academia and industries. The cutting mechanism of nano MMCs is believed to be different when compared to composites reinforced with micro particles. This paper presents cutting mechanism comparison between SiC/Al metal matrix composites (MMCs) reinforced with micro and nano-particles using finite element method. The cutting mechanisms are investigated in terms of the von Mises stress distribution, tool-particles interaction, chip formation mechanism and surface morphology. It is found that the particles in nano size remained intact without fracture during the cutting process and are more likely to produce continuous chips, while the particles in micro size are easy to break and tend to form discontinues chips. Better machined surface quality with less defects can be obtained from nano size reinforced MMCs compared with their micro size counterparts. The model validation was carried out by conducting machining experiments on two types of MMCs and good agreements are found with the simulation results.


Publication metadata

Author(s): Teng X, Chen W, Huo D, Shyha I, Lin C

Publication type: Article

Publication status: Published

Journal: Composite Structures

Year: 2018

Volume: 203

Pages: 636-647

Print publication date: 01/11/2018

Online publication date: 18/07/2018

Acceptance date: 17/07/2018

Date deposited: 24/09/2018

ISSN (print): 0263-8223

ISSN (electronic): 1879-1085

Publisher: Elsevier Ltd

URL: https://doi.org/10.1016/j.compstruct.2018.07.076

DOI: 10.1016/j.compstruct.2018.07.076


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