Investigation on the thermal effects during nanometric cutting process while using nanoscale diamond tools

Zhen Tong, Yingchun Liang, Xuechun Yang, Xichun Luo

Research output: Contribution to journalLetter

23 Citations (Scopus)

Abstract

In this paper, large scale molecular dynamics simulations are carried out to investigate the thermal effect on nanometric cutting of copper while using a single tip and a multi-tip nanoscale diamond tool. A new concept of atomistic equivalent temperature is proposed and used to characterize the temperature distribution in the cutting zone. The results show that the cutting heat generated while using a multi-tip tool is larger than that of using a single tip tool. The local temperature is found to be higher at the inner sides of the multi-tip tool cutting edges than the outer sides. Applying centro-symmetry parameters and radius distribution function, the local annealing process and its effect on the integrity of the machined nanostructures are analyzed. It is observed that the local annealing at the machined surface can improve the surface integrity of the machined nanostructures, especially in the multi-tip diamond tool cutting process. There exists a great potential to control the thickness of residual atomic defect layer through an optimal selection of the cutting speed with designed depth of cut.
LanguageEnglish
Pages1709-1718
Number of pages10
JournalInternational Journal of Advanced Manufacturing Technology
Volume74
Issue number9-12
Early online date9 Jul 2014
DOIs
Publication statusPublished - 31 Oct 2014

Fingerprint

Thermal effects
Diamonds
Nanostructures
Annealing
Diamond cutting tools
Cutting tools
Distribution functions
Molecular dynamics
Temperature distribution
Copper
Temperature
Defects
Computer simulation

Keywords

  • molecular dynamics
  • thermal effects
  • nanometric cutting
  • multi-tip tool
  • nanostructure
  • atomistic equivalent temperature
  • cutting heat
  • local annealing

Cite this

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title = "Investigation on the thermal effects during nanometric cutting process while using nanoscale diamond tools",
abstract = "In this paper, large scale molecular dynamics simulations are carried out to investigate the thermal effect on nanometric cutting of copper while using a single tip and a multi-tip nanoscale diamond tool. A new concept of atomistic equivalent temperature is proposed and used to characterize the temperature distribution in the cutting zone. The results show that the cutting heat generated while using a multi-tip tool is larger than that of using a single tip tool. The local temperature is found to be higher at the inner sides of the multi-tip tool cutting edges than the outer sides. Applying centro-symmetry parameters and radius distribution function, the local annealing process and its effect on the integrity of the machined nanostructures are analyzed. It is observed that the local annealing at the machined surface can improve the surface integrity of the machined nanostructures, especially in the multi-tip diamond tool cutting process. There exists a great potential to control the thickness of residual atomic defect layer through an optimal selection of the cutting speed with designed depth of cut.",
keywords = "molecular dynamics, thermal effects, nanometric cutting, multi-tip tool, nanostructure, atomistic equivalent temperature , cutting heat , local annealing",
author = "Zhen Tong and Yingchun Liang and Xuechun Yang and Xichun Luo",
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Investigation on the thermal effects during nanometric cutting process while using nanoscale diamond tools. / Tong, Zhen; Liang, Yingchun ; Yang, Xuechun; Luo, Xichun.

In: International Journal of Advanced Manufacturing Technology , Vol. 74, No. 9-12, 31.10.2014, p. 1709-1718.

Research output: Contribution to journalLetter

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T1 - Investigation on the thermal effects during nanometric cutting process while using nanoscale diamond tools

AU - Tong, Zhen

AU - Liang, Yingchun

AU - Yang, Xuechun

AU - Luo, Xichun

N1 - The final publication is available at Springer via http://dx.doi.org/10.1007/s00170-014-6087-x

PY - 2014/10/31

Y1 - 2014/10/31

N2 - In this paper, large scale molecular dynamics simulations are carried out to investigate the thermal effect on nanometric cutting of copper while using a single tip and a multi-tip nanoscale diamond tool. A new concept of atomistic equivalent temperature is proposed and used to characterize the temperature distribution in the cutting zone. The results show that the cutting heat generated while using a multi-tip tool is larger than that of using a single tip tool. The local temperature is found to be higher at the inner sides of the multi-tip tool cutting edges than the outer sides. Applying centro-symmetry parameters and radius distribution function, the local annealing process and its effect on the integrity of the machined nanostructures are analyzed. It is observed that the local annealing at the machined surface can improve the surface integrity of the machined nanostructures, especially in the multi-tip diamond tool cutting process. There exists a great potential to control the thickness of residual atomic defect layer through an optimal selection of the cutting speed with designed depth of cut.

AB - In this paper, large scale molecular dynamics simulations are carried out to investigate the thermal effect on nanometric cutting of copper while using a single tip and a multi-tip nanoscale diamond tool. A new concept of atomistic equivalent temperature is proposed and used to characterize the temperature distribution in the cutting zone. The results show that the cutting heat generated while using a multi-tip tool is larger than that of using a single tip tool. The local temperature is found to be higher at the inner sides of the multi-tip tool cutting edges than the outer sides. Applying centro-symmetry parameters and radius distribution function, the local annealing process and its effect on the integrity of the machined nanostructures are analyzed. It is observed that the local annealing at the machined surface can improve the surface integrity of the machined nanostructures, especially in the multi-tip diamond tool cutting process. There exists a great potential to control the thickness of residual atomic defect layer through an optimal selection of the cutting speed with designed depth of cut.

KW - molecular dynamics

KW - thermal effects

KW - nanometric cutting

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KW - nanostructure

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