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Residual stresses in high speed turning of nickel-based superalloy

Peng, R. L. ; Zhou, J. M. LU ; Johansson, S. ; Bellinius, A. ; Bushlya, V. LU and Stahl, J. E. LU (2014) In HTM - Journal of Heat Treatment and Materials 69(1). p.46-53
Abstract

Residual stresses induced by machining operations can be critical for the performance and lifetime of the machined components. Tis paper investigated the influence of cutting conditions, including the use of cutting fluid, cutting speed and tool flank wear, on the residual stresses in high speed turning of Inconel 718 alloy. X-ray diffraction measurements revealed characteristic residual stress distributions with tensile stresses in a thin surface layer and compressive stresses in a much thicker subsurface layer in all investigated samples. However, the magnitude of the surface tensile stresses and subsurface compressive stresses as well as the size of the tension and compression zone depended on the cutting parameters. Surface tensile... (More)

Residual stresses induced by machining operations can be critical for the performance and lifetime of the machined components. Tis paper investigated the influence of cutting conditions, including the use of cutting fluid, cutting speed and tool flank wear, on the residual stresses in high speed turning of Inconel 718 alloy. X-ray diffraction measurements revealed characteristic residual stress distributions with tensile stresses in a thin surface layer and compressive stresses in a much thicker subsurface layer in all investigated samples. However, the magnitude of the surface tensile stresses and subsurface compressive stresses as well as the size of the tension and compression zone depended on the cutting parameters. Surface tensile residual stresses over 1600 MPa and 1400 MPa were induced by tool flank wear and increased cutting speed, respectively, in dry turning. The effect of cutting induced local plasticity and temperature increase on the observed residual stress distributions was analyzed based on microstructural study by electron channeling contrast imaging and electron backscatter diffraction.

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author
; ; ; ; and
organization
publishing date
type
Contribution to specialist publication or newspaper
publication status
published
subject
keywords
Dry cut, High speed turning, Inconel 718, Residual stresses, Tool wear
in
HTM - Journal of Heat Treatment and Materials
volume
69
issue
1
pages
8 pages
publisher
Carl Hanser Verlag GmbH
external identifiers
  • scopus:84896525186
ISSN
1867-2493
DOI
10.3139/105.110211
language
English
LU publication?
yes
id
1ef25f83-decb-4b66-bdc8-515634a4d62f
date added to LUP
2019-01-15 14:16:22
date last changed
2020-12-08 01:52:44
@misc{1ef25f83-decb-4b66-bdc8-515634a4d62f,
  abstract     = {<p>Residual stresses induced by machining operations can be critical for the performance and lifetime of the machined components. Tis paper investigated the influence of cutting conditions, including the use of cutting fluid, cutting speed and tool flank wear, on the residual stresses in high speed turning of Inconel 718 alloy. X-ray diffraction measurements revealed characteristic residual stress distributions with tensile stresses in a thin surface layer and compressive stresses in a much thicker subsurface layer in all investigated samples. However, the magnitude of the surface tensile stresses and subsurface compressive stresses as well as the size of the tension and compression zone depended on the cutting parameters. Surface tensile residual stresses over 1600 MPa and 1400 MPa were induced by tool flank wear and increased cutting speed, respectively, in dry turning. The effect of cutting induced local plasticity and temperature increase on the observed residual stress distributions was analyzed based on microstructural study by electron channeling contrast imaging and electron backscatter diffraction.</p>},
  author       = {Peng, R. L. and Zhou, J. M. and Johansson, S. and Bellinius, A. and Bushlya, V. and Stahl, J. E.},
  issn         = {1867-2493},
  language     = {eng},
  month        = {02},
  number       = {1},
  pages        = {46--53},
  publisher    = {Carl Hanser Verlag GmbH},
  series       = {HTM - Journal of Heat Treatment and Materials},
  title        = {Residual stresses in high speed turning of nickel-based superalloy},
  url          = {http://dx.doi.org/10.3139/105.110211},
  doi          = {10.3139/105.110211},
  volume       = {69},
  year         = {2014},
}