Numerical Simulation of the Laser Welding Process for Electrical Steel Laminations

Ziegler, Marco; Brandl, Florian; Franke, Jörg; Kühl, Alexander

doi:10.1109/edpc56367.2022.10019752

Cited by 2 publications

(4 citation statements)

References 12 publications

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“…Laser welding is appealing for high-performance applications because it is suitable for an integrated manufacturing process and welding of high-alloy ESLs. Therefore, much research on the improvement and investigation of lamination welding has been carried out [24,33,52,58,[93][94][95][96][97][98][99][100][101][102][103][104][105].…”

Section: Welding Processmentioning

confidence: 99%

“…Also, during operation, induced electromagnetic force and vibrations exert pressure on the weld seam which will have an impact on the long-term strength and result in torsional loads. Figure 13 depicts an overview of the mentioned loads [103]. Therefore, a compromise between electromagnetic performance and mechanical strength is required.…”

Section: Welding Processmentioning

confidence: 99%

“…Very thin sheets can be welded automatically at high velocities using laser welding [103]. The thermal heat input in the welding zone and adjacent areas destroys the isolation coating on both sides of the ESLs [24].…”

Section: Welding Processmentioning

confidence: 99%

“…The laser path can be linear, circular, elliptical, or double circle oscillations. By varying the amplitude, frequency and shape of this oscillation, the weld result changes [101,103]. From the perspective of mechanical strength, it was found that, at the same laser power, an oscillating weld has a better characteristic compared to linear one [102].…”

Section: Laser Welding Typesmentioning

confidence: 99%

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A Review on the Effect of Electrical Steel Manufacturing Processes on the Performance of Electric Machines

Mahmouditabar,

Baker

2023

Energies

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The manufacturing processing of Electrical Steel Laminations (ESLs) for electric machines comprises cutting, stacking, and housing techniques which can result in plastic deformation and residual stress in the soft magnetic material. These manufacturing processes result in decreasing the magnetic quality and a local increase in both the static and dynamic hysteresis losses near the cut edges and consequently a reduction in the performance of the designed motor. The iron losses resulting from cutting can vary by a factor of two or more depending on geometrical, material, and processing parameters as well as the magnetic field strength. It is advantageous to consider these manufacturing effects in the design stage to reduce the probability of underperforming mass production. In this paper, the manufacturing processes of ESLs and their modelling methods are comprehensively surveyed. The gaps in scientific understanding and the research need for the expansion of accurate modelling of the cutting and joining of ESLs are subsequently discussed.

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Section: Welding Processmentioning

confidence: 99%

Section: Welding Processmentioning

confidence: 99%

Section: Welding Processmentioning

confidence: 99%

Section: Laser Welding Typesmentioning

confidence: 99%

See 2 more Smart Citations

A Review on the Effect of Electrical Steel Manufacturing Processes on the Performance of Electric Machines

Mahmouditabar,

Baker

2023

Energies

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Influence of laser energy on weld quality during blue laser spot-welding of electrical steel laminations

Zhang,

Tang,

Xiao

et al. 2024

Science and Technology of Welding and Joining

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Blue laser spot welding electrical steel can improve material absorption, stabilise the molten pool and reduce heat input. The influence of process parameters on the welding quality of blue laser spot welding electrical steel is investigated. With the increase of laser power, a ‘single hump’ molten pool was generated. At the power of 1000 W, the melting mode changed, and the plume appeared above the molten pool. The maximum penetration depth was 0.75 mm (laser power 1000 W, pulse time 1 s). Higher laser energy led to a continuous increase in the proportion of columnar grains, exceeding 45% at 1000 J. Finally, higher laser power and pulse time enhanced the connection and bonded area of laminations.

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Numerical Simulation of the Laser Welding Process for Electrical Steel Laminations

Cited by 2 publications

References 12 publications

A Review on the Effect of Electrical Steel Manufacturing Processes on the Performance of Electric Machines

A Review on the Effect of Electrical Steel Manufacturing Processes on the Performance of Electric Machines

Influence of laser energy on weld quality during blue laser spot-welding of electrical steel laminations

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