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The influence of microstructure and mechanical properties on the machinability of martensitic and bainitic prehardened mould steels

Hoseiny, Harned ; Hogman, Berne ; Andren, Hans-Olof ; Klement, Uta ; Ståhl, Jan-Eric LU and Thuvander, Anders (2013) In International Journal of Materials Research 104(8). p.748-761
Abstract
The machinability of two prehardened mould steels, one continuously-cooled and one quenched and tempered, is compared in terms of cutting temperature, cutting force and tool life. Both materials have a hardness of similar to 40 HRC which is a typical hardness for prehardened mould steels. The results of machinability tests are related to mechanical properties and microstructural features, and the material removal rate is estimated for the materials. The continuously-cooled steel with bainitic structure shows higher machinability and possesses superior impact toughness and ductility compared to the quenched and tempered steel with martensitic structure. These properties are very important for plastic mould steels. The continuously-cooled... (More)
The machinability of two prehardened mould steels, one continuously-cooled and one quenched and tempered, is compared in terms of cutting temperature, cutting force and tool life. Both materials have a hardness of similar to 40 HRC which is a typical hardness for prehardened mould steels. The results of machinability tests are related to mechanical properties and microstructural features, and the material removal rate is estimated for the materials. The continuously-cooled steel with bainitic structure shows higher machinability and possesses superior impact toughness and ductility compared to the quenched and tempered steel with martensitic structure. These properties are very important for plastic mould steels. The continuously-cooled bainitic steel also has the advantage of not requiring any costly quenching and tempering processes in connection with its production. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Machinability, Microstructure, Prehardened mould steel, Mechanical, properties
in
International Journal of Materials Research
volume
104
issue
8
pages
748 - 761
publisher
Carl Hanser Verlag GmbH
external identifiers
  • wos:000327366400004
  • scopus:84883150682
ISSN
1862-5282
DOI
10.3139/146.110926
language
English
LU publication?
yes
id
3ac09d41-7a88-41cf-824d-909496d54a3d (old id 4275307)
date added to LUP
2016-04-01 14:39:42
date last changed
2022-02-19 20:13:51
@article{3ac09d41-7a88-41cf-824d-909496d54a3d,
  abstract     = {{The machinability of two prehardened mould steels, one continuously-cooled and one quenched and tempered, is compared in terms of cutting temperature, cutting force and tool life. Both materials have a hardness of similar to 40 HRC which is a typical hardness for prehardened mould steels. The results of machinability tests are related to mechanical properties and microstructural features, and the material removal rate is estimated for the materials. The continuously-cooled steel with bainitic structure shows higher machinability and possesses superior impact toughness and ductility compared to the quenched and tempered steel with martensitic structure. These properties are very important for plastic mould steels. The continuously-cooled bainitic steel also has the advantage of not requiring any costly quenching and tempering processes in connection with its production.}},
  author       = {{Hoseiny, Harned and Hogman, Berne and Andren, Hans-Olof and Klement, Uta and Ståhl, Jan-Eric and Thuvander, Anders}},
  issn         = {{1862-5282}},
  keywords     = {{Machinability; Microstructure; Prehardened mould steel; Mechanical; properties}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{748--761}},
  publisher    = {{Carl Hanser Verlag GmbH}},
  series       = {{International Journal of Materials Research}},
  title        = {{The influence of microstructure and mechanical properties on the machinability of martensitic and bainitic prehardened mould steels}},
  url          = {{http://dx.doi.org/10.3139/146.110926}},
  doi          = {{10.3139/146.110926}},
  volume       = {{104}},
  year         = {{2013}},
}