Potentials of Process Monitoring During Laser Welding of Electrical Steel Laminations

Ziegler, Marco; Mayr, Andreas; Seefried, Johannes; Kuehl, Alexander; Franke, Jöerg

doi:10.1109/edpc48408.2019.9011918

Cited by 5 publications

(4 citation statements)

References 20 publications

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“…This method brought advantages to the production as well as to the final product and had great potential to be implemented in industry, though much work should be done for optimization. Ziegler et al [ 101 ] concluded that quality control was also important for improving the welding quality, where process monitoring could be integrated into the welding system to control the quality and to optimize the parameters accordingly. The optical, spectral, thermal and acoustic sensors, which were increasingly being used separately or in combination, were particularly suitable for this purpose.…”

Section: Comparison Between Current Fusion Welding Methodsmentioning

confidence: 99%

Joining of the Laminated Electrical Steels in Motor Manufacturing: A Review

Xia

Wang

et al. 2020

Materials

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In recent years, the motor has been increasingly used to replace the conventional gasoline engine for carbon emission reduction, and the high-performance motor is urgently required. The stator and rotor in a motor are made of hundreds of joined and laminated electrical steels. This paper covers the current research in joining the laminated electrical steels for the motor application, together with the critical assessment of our understanding. It includes the representative joining method, modeling of the joining process, microstructure of the weld zone, mechanical strength and magnetic properties. The gaps in the scientific understanding, and the research needs for the expansion of joining laminated electrical steels, are provided.

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Section: Comparison Between Current Fusion Welding Methodsmentioning

confidence: 99%

Joining of the Laminated Electrical Steels in Motor Manufacturing: A Review

Xia

Wang

et al. 2020

Materials

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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%

“…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]. In [93], the electromagnetic performance of linearly and oscillated welding process are compared.…”

Section: Laser Welding Typesmentioning

confidence: 99%

“…When compared to the hysteresis losses, the eddy current losses in parameter sets 4 and 5 are even smaller than in parameter set 1, demonstrating that deep seams influence eddy current paths more than wide seams. In [102], the effect of the number of welding seams, laser power, laser velocity and contact torque on mechanical characteristics and shear force of the welding seams were investigated by an experimental test on five samples as Table 4. To carry out the experimental test, according to Figure 24, one half of the test piece is clamped while the other half is subjected to a compressive force.…”

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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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Blue laser welding of laminated electrical steels: Dynamic process, weld bead characteristics, mechanical and magnetic properties

Tang

Zhang

et al. 2023

Journal of Materials Processing Technology

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Potentials of Process Monitoring During Laser Welding of Electrical Steel Laminations

Cited by 5 publications

References 20 publications

Joining of the Laminated Electrical Steels in Motor Manufacturing: A Review

Joining of the Laminated Electrical Steels in Motor Manufacturing: A Review

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

Blue laser welding of laminated electrical steels: Dynamic process, weld bead characteristics, mechanical and magnetic properties

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