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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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Reuben, Bob
Heriot-Watt University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (32/32 displayed)
- 2023Laser-Induced Forward Transfer of Ni-rich NiTi Alloys for Shape Memory Applicationscitations
- 2022Laser induced forward transfer of NiTi deposits for functionally graded SMA components
- 2021Experimental investigation using acoustic emission technique for quasi-static cracks in steel pipes assessmentcitations
- 2018Flow noise identification using acoustic emission (AE) energy decomposition for sand monitoring in flow pipelinecitations
- 2017Dynamic instrumented palpation (DIP) - a new method for soft tissue quality assessment: application to prostate disease diagnosiscitations
- 2017Quantitative mechanical assessment of the whole prostate gland ex vivo using dynamic instrumented palpationcitations
- 2016Monitoring acoustic emission (AE) energy of abrasive particle impacts in a slurry flow loop using a statistical distribution modelcitations
- 2015Development of a novel actuator for the dynamic palpation of soft tissue for use in the assessment of prostate tissue qualitycitations
- 2015Monitoring acoustic emission (AE) energy in slurry impingement using a new model for particle impactcitations
- 2013Transmission of acoustic emission in bones, implants and dental materialscitations
- 2012Predicting acoustic emission attenuation in small steel blocks using a ray tracing techniquecitations
- 2012Statistical distribution models for monitoring acoustic emission (AE) energy of abrasive particle impacts on carbon steelcitations
- 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
- 2012Acoustic emission monitoring of abrasive particle impacts on carbon steelcitations
- 2012The effect of coping/veneer thickness on the fracture toughness and residual stress of implant supported, cement retained zirconia and metal-ceramic crownscitations
- 2011Atomistic aspects of ductile responses of cubic silicon carbide during nanometric cuttingcitations
- 2011Indentation testing and its acoustic emission response: applications and emerging trendscitations
- 2011An improved measurement of Vickers indentation behaviour through enhanced instrumentationcitations
- 2011AE Monitoring and Analysis of HVOF Thermal Spraying Processcitations
- 2008Assessment of Surface Residual Stresses Generated during Machining of Metastable Austenitic Stainless Steel using Acoustic Emission
- 2006Compressive stress-strain behaviour of cast dental restorations in relation to luting cement distribution
- 2006Interferometric sensors for application in the bladder and the lower urinary tractcitations
- 2006Biomechanical properties of articular cartilage as a standard for biologically integrated interfaces
- 2006Application of acoustic emission for monitoring the HVOF thermal spraying processcitations
- 2005The effects of progressive wear on the frequency characteristic of acoustic emission acquired during face millingcitations
- 2005AE mapping of engines for spatially located time seriescitations
- 2004Design, manufacture and testing of a low-cost micro-channel cooling device
- 2004Acoustic emission from the tension fatigue of glass fibre reinforced plasticscitations
- 2004A new method for waveform analysis for estimating AE wave arrival times using wavelet decompositioncitations
- 2002Toward a better understanding of morphology changes in solders using phase field theories: Quantitative modeling and experimental verification
- 2000Adaptability of a tool wear monitoring system under changing cutting conditionscitations
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>