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Development of a simulation model to study tool loads in pcBN when machining AISI 316L

Agmell, Mathias LU ; Bushlya, Volodymyr LU ; Laakso, Sampsa LU ; Ahadi, Aylin LU and Ståhl, Jan-Eric LU (2018) In International Journal of Advanced Manufacturing Technology
Abstract
This paper presents the development of a FE-simulation model to predict the mechanical stresses and thermal loads that a cutting tool of polycrystalline cubic boron nitride (pcBN) is subjected to, when machining AISI 316L. The serrated chip formation of AISI 316L has a major impact on the periodic loads acting on the cutting tool. Therefore, it is vital to correctly model this serrated chip formation. One of the major difficulties with FE-simulations of metal cutting is that the extreme deformations in the workpiece material, often leads to a highly distorted mesh. This paper uses the Coupled Eulerian-Lagrangian (CEL) formulation in Abaqus/Explicit, where the workpiece is modelled with the Eulerian formulation and the cutting tool by the... (More)
This paper presents the development of a FE-simulation model to predict the mechanical stresses and thermal loads that a cutting tool of polycrystalline cubic boron nitride (pcBN) is subjected to, when machining AISI 316L. The serrated chip formation of AISI 316L has a major impact on the periodic loads acting on the cutting tool. Therefore, it is vital to correctly model this serrated chip formation. One of the major difficulties with FE-simulations of metal cutting is that the extreme deformations in the workpiece material, often leads to a highly distorted mesh. This paper uses the Coupled Eulerian-Lagrangian (CEL) formulation in Abaqus/Explicit, where the workpiece is modelled with the Eulerian formulation and the cutting tool by the Lagrangian one. This CEL formulation enables to completely avoid mesh distortion. To capture the chip serration process, the workpiece material is described with the Johnson-Cook damage model. The FE-simulation results are validated via comparison of the modelled cutting forces, chip serration frequency, and contact length against experimental ones. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
in
International Journal of Advanced Manufacturing Technology
pages
13 pages
publisher
Springer
external identifiers
  • scopus:85042522965
ISSN
0268-3768
DOI
10.1007/s00170-018-1673-y
language
English
LU publication?
yes
id
ee222280-f31f-4fdf-973e-fa8163e3e74f
date added to LUP
2018-03-06 15:17:34
date last changed
2018-07-01 04:53:00
@article{ee222280-f31f-4fdf-973e-fa8163e3e74f,
  abstract     = {This paper presents the development of a FE-simulation model to predict the mechanical stresses and thermal loads that a cutting tool of polycrystalline cubic boron nitride (pcBN) is subjected to, when machining AISI 316L. The serrated chip formation of AISI 316L has a major impact on the periodic loads acting on the cutting tool. Therefore, it is vital to correctly model this serrated chip formation. One of the major difficulties with FE-simulations of metal cutting is that the extreme deformations in the workpiece material, often leads to a highly distorted mesh. This paper uses the Coupled Eulerian-Lagrangian (CEL) formulation in Abaqus/Explicit, where the workpiece is modelled with the Eulerian formulation and the cutting tool by the Lagrangian one. This CEL formulation enables to completely avoid mesh distortion. To capture the chip serration process, the workpiece material is described with the Johnson-Cook damage model. The FE-simulation results are validated via comparison of the modelled cutting forces, chip serration frequency, and contact length against experimental ones.},
  author       = {Agmell, Mathias and Bushlya, Volodymyr and Laakso, Sampsa and Ahadi, Aylin and Ståhl, Jan-Eric},
  issn         = {0268-3768},
  language     = {eng},
  month        = {02},
  pages        = {13},
  publisher    = {Springer},
  series       = {International Journal of Advanced Manufacturing Technology},
  title        = {Development of a simulation model to study tool loads in pcBN when machining AISI 316L},
  url          = {http://dx.doi.org/10.1007/s00170-018-1673-y},
  year         = {2018},
}