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Molecular dynamics simulations of nanometric cutting of single crystal copper sheets using a diamond tool

Blixt, Kevin LU ; Christierson, Lea LU ; Ahadi, Aylin LU ; Hansson, Per LU and Melin, Solveig LU (2023) Tenth International Conference on Materials Structure & Micromecanics of fracture, MSMF10 In Procedia Structural Integrity 43. p.9-14
Abstract
Nanometric cutting of a single crystal copper workpiece of different crystallographic orientations by a stiff cylindrical cubic diamond tool has been investigated by MD simulations using the freeware LAMMPS. The chip evolves during the cutting process and forms depending on crystal orientation, cutting velocity and tool geometry. It was found that no significant difference in the cutting force magnitude was observed for different crystallographic orientations despite significant differences in deformation patterns. After tool passage the surface is smooth and no elastic recovery was detected. Instead, a grain structure with areas surrounded by dislocation clusters form in the tool wake. Increasing the cutting velocity promotes chip... (More)
Nanometric cutting of a single crystal copper workpiece of different crystallographic orientations by a stiff cylindrical cubic diamond tool has been investigated by MD simulations using the freeware LAMMPS. The chip evolves during the cutting process and forms depending on crystal orientation, cutting velocity and tool geometry. It was found that no significant difference in the cutting force magnitude was observed for different crystallographic orientations despite significant differences in deformation patterns. After tool passage the surface is smooth and no elastic recovery was detected. Instead, a grain structure with areas surrounded by dislocation clusters form in the tool wake. Increasing the cutting velocity promotes chip formation and chip folding, thus increasing the chip thickness.

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Materials Structure & Micromechanics of Fracture
series title
Procedia Structural Integrity
editor
Pokluda, Jaroslav and Sandera, Pavel
volume
43
pages
6 pages
publisher
Elsevier
conference name
Tenth International Conference on Materials Structure & Micromecanics of fracture, MSMF10
conference location
Brno, Czech Republic
conference dates
2022-09-12 - 2022-09-14
external identifiers
  • scopus:85159800256
ISSN
2452-3216
DOI
10.1016/j.prostr.2022.12.227
language
English
LU publication?
yes
id
7721bdc6-a268-49ae-a38f-131f78161e85
date added to LUP
2023-02-01 13:47:53
date last changed
2023-11-08 04:19:00
@inproceedings{7721bdc6-a268-49ae-a38f-131f78161e85,
  abstract     = {{Nanometric cutting of a single crystal copper workpiece of different crystallographic orientations by a stiff cylindrical cubic diamond tool has been investigated by MD simulations using the freeware LAMMPS. The chip evolves during the cutting process and forms depending on crystal orientation, cutting velocity and tool geometry. It was found that no significant difference in the cutting force magnitude was observed for different crystallographic orientations despite significant differences in deformation patterns. After tool passage the surface is smooth and no elastic recovery was detected. Instead, a grain structure with areas surrounded by dislocation clusters form in the tool wake. Increasing the cutting velocity promotes chip formation and chip folding, thus increasing the chip thickness.<br/><br/>}},
  author       = {{Blixt, Kevin and Christierson, Lea and Ahadi, Aylin and Hansson, Per and Melin, Solveig}},
  booktitle    = {{Materials Structure & Micromechanics of Fracture}},
  editor       = {{Pokluda, Jaroslav and Sandera, Pavel}},
  issn         = {{2452-3216}},
  language     = {{eng}},
  pages        = {{9--14}},
  publisher    = {{Elsevier}},
  series       = {{Procedia Structural Integrity}},
  title        = {{Molecular dynamics simulations of nanometric cutting of single crystal copper sheets using a diamond tool}},
  url          = {{http://dx.doi.org/10.1016/j.prostr.2022.12.227}},
  doi          = {{10.1016/j.prostr.2022.12.227}},
  volume       = {{43}},
  year         = {{2023}},
}