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Modeling and experimentation on multistage work-hardening mechanism in machining with nose-radiused tools and its influence on machined subsurface quality and tool wear

Bushlya, Volodymyr LU ; Zhou, Jinming LU and Ståhl, Jan-Eric LU (2014) In International Journal of Advanced Manufacturing Technology 73(1-4). p.545-555
Abstract
The paper reports on the modeling and respective experimental validation for the formation of the machined subsurface layer in turning with nose-radiused and round tools. An experimental work on the mechanisms of work-hardening of the machined surface and related wear of the cutting tools was conducted for high-speed turning of aged Inconel 718 with whisker-reinforced alumina tools. The model shows that multiple deformations of the machined surface occur when machining with small feeds and tools with large nose radius, thus changing the mechanics of surface formation. Experimental results confirm the localized increase in subsurface hardness in the vicinity of the tool tip. The variation in the degree of work-hardening and the extent of... (More)
The paper reports on the modeling and respective experimental validation for the formation of the machined subsurface layer in turning with nose-radiused and round tools. An experimental work on the mechanisms of work-hardening of the machined surface and related wear of the cutting tools was conducted for high-speed turning of aged Inconel 718 with whisker-reinforced alumina tools. The model shows that multiple deformations of the machined surface occur when machining with small feeds and tools with large nose radius, thus changing the mechanics of surface formation. Experimental results confirm the localized increase in subsurface hardness in the vicinity of the tool tip. The variation in the degree of work-hardening and the extent of the area affected by it fully agree with the predictions of the model. The model also shows that a significant part of the cutting tool may cut through the extra work-hardened material. Tool wear tests show that the local increase in workpiece hardness results in a localized increase in the wear rate of the cutting tools. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Multistage work-hardening, Tool wear, Subsurface formation, Inconel 718, Whisker-reinforced alumina
in
International Journal of Advanced Manufacturing Technology
volume
73
issue
1-4
pages
545 - 555
publisher
Springer
external identifiers
  • wos:000338031500046
  • scopus:84903276881
ISSN
0268-3768
DOI
10.1007/s00170-014-5837-0
language
English
LU publication?
yes
id
4783485d-e067-47de-8a51-f985fb921ac1 (old id 4608962)
date added to LUP
2014-08-28 16:41:53
date last changed
2017-10-29 03:52:55
@article{4783485d-e067-47de-8a51-f985fb921ac1,
  abstract     = {The paper reports on the modeling and respective experimental validation for the formation of the machined subsurface layer in turning with nose-radiused and round tools. An experimental work on the mechanisms of work-hardening of the machined surface and related wear of the cutting tools was conducted for high-speed turning of aged Inconel 718 with whisker-reinforced alumina tools. The model shows that multiple deformations of the machined surface occur when machining with small feeds and tools with large nose radius, thus changing the mechanics of surface formation. Experimental results confirm the localized increase in subsurface hardness in the vicinity of the tool tip. The variation in the degree of work-hardening and the extent of the area affected by it fully agree with the predictions of the model. The model also shows that a significant part of the cutting tool may cut through the extra work-hardened material. Tool wear tests show that the local increase in workpiece hardness results in a localized increase in the wear rate of the cutting tools.},
  author       = {Bushlya, Volodymyr and Zhou, Jinming and Ståhl, Jan-Eric},
  issn         = {0268-3768},
  keyword      = {Multistage work-hardening,Tool wear,Subsurface formation,Inconel 718,Whisker-reinforced alumina},
  language     = {eng},
  number       = {1-4},
  pages        = {545--555},
  publisher    = {Springer},
  series       = {International Journal of Advanced Manufacturing Technology},
  title        = {Modeling and experimentation on multistage work-hardening mechanism in machining with nose-radiused tools and its influence on machined subsurface quality and tool wear},
  url          = {http://dx.doi.org/10.1007/s00170-014-5837-0},
  volume       = {73},
  year         = {2014},
}