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Dull punch line is not a joke – Worn cutting edge causes higher iron losses in electrical steel piercing

Laakso, S.V.A. LU ; Väänänen, Arijussi ; Bossuyt, S. and Arkkio, A. (2018) In Robotics and Computer-Integrated Manufacturing
Abstract
© 2018 Elsevier Ltd Electrical steel is used for the active parts in electrical machinery that form the magnetic circuits because the material experiences low iron loss, and thus, has superior magnetizing properties. A typical electrical sheet has a thickness of 0.5 mm and is punched into its final shape via a piercing process. Piercing causes large deformations and residual stresses in the narrow zone of the cut surface. The deformations and stresses weaken the magnetic properties of the electrical sheet and result in additional losses, as the iron loss increases after piercing [1]. This paper presents a simulation model of the piercing process to evaluate the deformations and stresses on the cut surface. The model is constructed using... (More)
© 2018 Elsevier Ltd Electrical steel is used for the active parts in electrical machinery that form the magnetic circuits because the material experiences low iron loss, and thus, has superior magnetizing properties. A typical electrical sheet has a thickness of 0.5 mm and is punched into its final shape via a piercing process. Piercing causes large deformations and residual stresses in the narrow zone of the cut surface. The deformations and stresses weaken the magnetic properties of the electrical sheet and result in additional losses, as the iron loss increases after piercing [1]. This paper presents a simulation model of the piercing process to evaluate the deformations and stresses on the cut surface. The model is constructed using the commercial FEM solver Deform. There has been an attempt to simulate the magneto-mechanical state of the punched surfaces, but the piercing process itself was not simulated [2] . The electrical steel sheet investigated in this paper is isotropic electrical silicon steel M400-50A (EN 10106-96). (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Electrical steel, FEM, Iron losses, M400-50A, Piercing, Simulation
in
Robotics and Computer-Integrated Manufacturing
pages
6 pages
publisher
Pergamon Press Ltd.
external identifiers
  • scopus:85044330340
ISSN
0736-5845
DOI
10.1016/j.rcim.2018.03.006
language
English
LU publication?
yes
id
1d107022-012d-434e-84fe-cd0fd78225c0
date added to LUP
2018-04-06 12:53:01
date last changed
2019-12-10 07:27:38
@article{1d107022-012d-434e-84fe-cd0fd78225c0,
  abstract     = {© 2018 Elsevier Ltd Electrical steel is used for the active parts in electrical machinery that form the magnetic circuits because the material experiences low iron loss, and thus, has superior magnetizing properties. A typical electrical sheet has a thickness of 0.5 mm and is punched into its final shape via a piercing process. Piercing causes large deformations and residual stresses in the narrow zone of the cut surface. The deformations and stresses weaken the magnetic properties of the electrical sheet and result in additional losses, as the iron loss increases after piercing [1]. This paper presents a simulation model of the piercing process to evaluate the deformations and stresses on the cut surface. The model is constructed using the commercial FEM solver Deform. There has been an attempt to simulate the magneto-mechanical state of the punched surfaces, but the piercing process itself was not simulated [2] . The electrical steel sheet investigated in this paper is isotropic electrical silicon steel M400-50A (EN 10106-96).},
  author       = {Laakso, S.V.A. and Väänänen, Arijussi and Bossuyt, S. and Arkkio, A.},
  issn         = {0736-5845},
  language     = {eng},
  publisher    = {Pergamon Press Ltd.},
  series       = {Robotics and Computer-Integrated Manufacturing},
  title        = {Dull punch line is not a joke – Worn cutting edge causes higher iron losses in electrical steel piercing},
  url          = {http://dx.doi.org/10.1016/j.rcim.2018.03.006},
  doi          = {10.1016/j.rcim.2018.03.006},
  year         = {2018},
}