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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Luo, Xichun
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Challenges and issues in continuum modelling of tribology, wear, cutting and other processes involving high-strain rate plastic deformation of metalscitations
- 2022Challenges and issues in continuum modelling of tribology, wear, cutting and other processes involving high-strain rate plastic deformation of metalscitations
- 2017A full factorial numerical investigation and validation of precision end milling process for hardened tool steel
- 2014A theoretical assessment of surface defect machining and hot machining of nanocrystalline silicon carbidecitations
- 2014Enabling ultra high precision on hard steels using surface defect machining
- 2012Replacing diamond cutting tools with CBN for efficient nanometric cutting of siliconcitations
- 2012Molecular dynamics simulation model for the quantitative assessment of tool wear during single point diamond turning of cubic silicon carbidecitations
- 2012Molecular dynamics simulation model for the quantitative assessment of tool wear during single point diamond turning of cubic silicon carbidecitations
- 2011Atomistic aspects of ductile responses of cubic silicon carbide during nanometric cutting
- 2011Atomistic aspects of ductile responses of cubic silicon carbide during nanometric cuttingcitations
Places of action
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article
Molecular dynamics simulation model for the quantitative assessment of tool wear during single point diamond turning of cubic silicon carbide
Abstract
<p>Silicon carbide (SiC) is a material of great technological interest for engineering applications concerning hostile environments where silicon-based components cannot work (beyond 623 K). Single point diamond turning (SPDT) has remained a superior and viable method to harness process efficiency and freeform shapes on this harder material. However, it is extremely difficult to machine this ceramic consistently in the ductile regime due to sudden and rapid tool wear. It thus becomes non trivial to develop an accurate understanding of tool wear mechanism during SPDT of SiC in order to identify measures to suppress wear to minimize operational cost.</p><p>In this paper, molecular dynamics (MD) simulation has been deployed with a realistic analytical bond order potential (ABOP) formalism based potential energy function to understand tool wear mechanism during single point diamond turning of SiC. The most significant result was obtained using the radial distribution function which suggests graphitization of diamond tool during the machining process. This phenomenon occurs due to the abrasive processes between these two ultra hard materials. The abrasive action results in locally high temperature which compounds with the massive cutting forces leading to sp(3)-sp(2) order-disorder transition of diamond tool. This represents the root cause of tool wear during SPDT operation of cubic SiC. Further testing led to the development of a novel method for quantitative assessment of the progression of diamond tool wear from MD simulations. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.</p>