Determination of Original Nondegraded and Fully Degraded Magnetic Characteristics of Material Subjected to Laser Cutting

Madeleine Bali, Herbert De Gersem, Annette Muetze

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The degrading effect of laser cutting on steel sheet material, and thus on the material's magnetic characteristics, is much less understood than that of mechanical cutting. Furthermore, the degrading influence on the magnetic properties is still difficult to determine. This paper focuses on the modeling of the degrading influence of laser cutting on the magnetic properties of electrical steel sheets. As the degradation depth and the degradation profile are still difficult to define, a method is needed, which takes the effect of laser cutting into account, but without the need of knowing the degradation profile exactly. This paper shows that a method that does not require any information on the physical phenomena that are introduced by the cutting process and that has already been verified for mechanically cut samples can also be applied to laser-cut samples, although the deterioration mechanisms and the resulting degradation profile and depths differ. Magnetic characteristics are identified for two different material zones and subsequently inserted into a finite-element model, which accounts for arbitrary geometries. The simulation results for the influence of laser cutting on the magnetic characteristics of the stator lamination stacks are verified by measurements, including three different materials and frequencies.

Original languageEnglish
Article number7906608
Pages (from-to)4242-4251
Number of pages10
JournalIEEE Transactions on Industry Applications
Volume53
Issue number5
DOIs
Publication statusPublished - 1 Sep 2017

Fingerprint

Lasers
Degradation
Steel sheet
Magnetic properties
Magnetic materials
Stators
Deterioration
Geometry

Keywords

  • Electrical steel sheets
  • ferromagnetic material
  • finite-element method
  • laser cutting
  • magnetostatics
  • manufacturing
  • material degradation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

Determination of Original Nondegraded and Fully Degraded Magnetic Characteristics of Material Subjected to Laser Cutting. / Bali, Madeleine; De Gersem, Herbert; Muetze, Annette.

In: IEEE Transactions on Industry Applications, Vol. 53, No. 5, 7906608, 01.09.2017, p. 4242-4251.

Research output: Contribution to journalArticleResearchpeer-review

@article{79a6a947cf434b6682ad1c2a3fd4159f,
title = "Determination of Original Nondegraded and Fully Degraded Magnetic Characteristics of Material Subjected to Laser Cutting",
abstract = "The degrading effect of laser cutting on steel sheet material, and thus on the material's magnetic characteristics, is much less understood than that of mechanical cutting. Furthermore, the degrading influence on the magnetic properties is still difficult to determine. This paper focuses on the modeling of the degrading influence of laser cutting on the magnetic properties of electrical steel sheets. As the degradation depth and the degradation profile are still difficult to define, a method is needed, which takes the effect of laser cutting into account, but without the need of knowing the degradation profile exactly. This paper shows that a method that does not require any information on the physical phenomena that are introduced by the cutting process and that has already been verified for mechanically cut samples can also be applied to laser-cut samples, although the deterioration mechanisms and the resulting degradation profile and depths differ. Magnetic characteristics are identified for two different material zones and subsequently inserted into a finite-element model, which accounts for arbitrary geometries. The simulation results for the influence of laser cutting on the magnetic characteristics of the stator lamination stacks are verified by measurements, including three different materials and frequencies.",
keywords = "Electrical steel sheets, ferromagnetic material, finite-element method, laser cutting, magnetostatics, manufacturing, material degradation",
author = "Madeleine Bali and {De Gersem}, Herbert and Annette Muetze",
year = "2017",
month = "9",
day = "1",
doi = "10.1109/TIA.2017.2696479",
language = "English",
volume = "53",
pages = "4242--4251",
journal = "IEEE Transactions on Industry Applications",
issn = "0093-9994",
publisher = "Institute of Electrical and Electronics Engineers",
number = "5",

}

TY - JOUR

T1 - Determination of Original Nondegraded and Fully Degraded Magnetic Characteristics of Material Subjected to Laser Cutting

AU - Bali, Madeleine

AU - De Gersem, Herbert

AU - Muetze, Annette

PY - 2017/9/1

Y1 - 2017/9/1

N2 - The degrading effect of laser cutting on steel sheet material, and thus on the material's magnetic characteristics, is much less understood than that of mechanical cutting. Furthermore, the degrading influence on the magnetic properties is still difficult to determine. This paper focuses on the modeling of the degrading influence of laser cutting on the magnetic properties of electrical steel sheets. As the degradation depth and the degradation profile are still difficult to define, a method is needed, which takes the effect of laser cutting into account, but without the need of knowing the degradation profile exactly. This paper shows that a method that does not require any information on the physical phenomena that are introduced by the cutting process and that has already been verified for mechanically cut samples can also be applied to laser-cut samples, although the deterioration mechanisms and the resulting degradation profile and depths differ. Magnetic characteristics are identified for two different material zones and subsequently inserted into a finite-element model, which accounts for arbitrary geometries. The simulation results for the influence of laser cutting on the magnetic characteristics of the stator lamination stacks are verified by measurements, including three different materials and frequencies.

AB - The degrading effect of laser cutting on steel sheet material, and thus on the material's magnetic characteristics, is much less understood than that of mechanical cutting. Furthermore, the degrading influence on the magnetic properties is still difficult to determine. This paper focuses on the modeling of the degrading influence of laser cutting on the magnetic properties of electrical steel sheets. As the degradation depth and the degradation profile are still difficult to define, a method is needed, which takes the effect of laser cutting into account, but without the need of knowing the degradation profile exactly. This paper shows that a method that does not require any information on the physical phenomena that are introduced by the cutting process and that has already been verified for mechanically cut samples can also be applied to laser-cut samples, although the deterioration mechanisms and the resulting degradation profile and depths differ. Magnetic characteristics are identified for two different material zones and subsequently inserted into a finite-element model, which accounts for arbitrary geometries. The simulation results for the influence of laser cutting on the magnetic characteristics of the stator lamination stacks are verified by measurements, including three different materials and frequencies.

KW - Electrical steel sheets

KW - ferromagnetic material

KW - finite-element method

KW - laser cutting

KW - magnetostatics

KW - manufacturing

KW - material degradation

UR - http://www.scopus.com/inward/record.url?scp=85032203121&partnerID=8YFLogxK

U2 - 10.1109/TIA.2017.2696479

DO - 10.1109/TIA.2017.2696479

M3 - Article

VL - 53

SP - 4242

EP - 4251

JO - IEEE Transactions on Industry Applications

JF - IEEE Transactions on Industry Applications

SN - 0093-9994

IS - 5

M1 - 7906608

ER -