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Effect of Cutting Conditions on Machinability of Superalloy Inconel 718 During High Speed Turning with Coated and Uncoated PCBN Tools

Bushlya, Volodymyr LU ; Zhou, Jinming LU and Ståhl, Jan-Eric LU (2012) In Procedia CIRP 3. p.370-375
Abstract
Inconel 718, an efficient superalloy for energy and aerospace applications, is currently machined with cemented carbide tools at low speed (vc≈60 m/min) due to its unfavorable mechanical and thermal properties. The article presents results of superalloy machinability study with uncoated and coated PCBN tools aiming on increased speed and efficiency. Aspects of tool life, tool wear and surface integrity were studied. It was found that protective function of the coating, increasing tool life up to 20%, is limited to low cutting speed range. EDX and AFM analyses suggested dominance of chemical and abrasive wear mechanisms. Residual stress analysis has shown advantageous compressive surface stresses.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ni-based superalloy, machinability, PCBN, tool wear, residual stresses
in
Procedia CIRP
volume
3
pages
370 - 375
publisher
Elsevier
external identifiers
  • wos:000314630700063
  • scopus:84879192626
ISSN
2212-8271
DOI
10.1016/j.procir.2012.07.064
language
English
LU publication?
yes
id
59353134-2cca-49ba-9977-691cf2227f41 (old id 3403721)
alternative location
http://www.sciencedirect.com/science/article/pii/S2212827112002363
date added to LUP
2013-01-21 15:31:55
date last changed
2017-01-08 05:35:59
@article{59353134-2cca-49ba-9977-691cf2227f41,
  abstract     = {Inconel 718, an efficient superalloy for energy and aerospace applications, is currently machined with cemented carbide tools at low speed (vc≈60 m/min) due to its unfavorable mechanical and thermal properties. The article presents results of superalloy machinability study with uncoated and coated PCBN tools aiming on increased speed and efficiency. Aspects of tool life, tool wear and surface integrity were studied. It was found that protective function of the coating, increasing tool life up to 20%, is limited to low cutting speed range. EDX and AFM analyses suggested dominance of chemical and abrasive wear mechanisms. Residual stress analysis has shown advantageous compressive surface stresses.},
  author       = {Bushlya, Volodymyr and Zhou, Jinming and Ståhl, Jan-Eric},
  issn         = {2212-8271},
  keyword      = {Ni-based superalloy,machinability,PCBN,tool wear,residual stresses},
  language     = {eng},
  pages        = {370--375},
  publisher    = {Elsevier},
  series       = {Procedia CIRP},
  title        = {Effect of Cutting Conditions on Machinability of Superalloy Inconel 718 During High Speed Turning with Coated and Uncoated PCBN Tools},
  url          = {http://dx.doi.org/10.1016/j.procir.2012.07.064},
  volume       = {3},
  year         = {2012},
}