Investigation of Laser Scribing Technics for Reducing Core Loss of Grain-Oriented Silicon Steels

Y. Huang; Y. Liu; G.L. Zhu

doi:10.4028/www.scientific.net/KEM.455.141

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 455Investigation of Laser Scribing Technics for...

Investigation of Laser Scribing Technics for Reducing Core Loss of Grain-Oriented Silicon Steels

Abstract:

A laser is often considered to scribe the steel surfaces after cold-rolling and annealing to reduce the energy losses associated with hysteresis and eddy currents. In order to maximize the loss reduction of this process, the laser scribing technics was investigated in details. In this work, three laser scribing parameters including pulse energy, scanning velocity and scribing spacing, which are highly related to the loss reduction, were selected for the study. A L9(34) orthogonal experiment was designed and carried out by an Nd:Yag laser marking machine. The results indicate that the subsequence of significance of the three factors on core loss reduction is as follows: pulse energy, scribing spacing and scanning velocity. And an optimized combination of parameters is obtained by range method.

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Periodical:

Key Engineering Materials (Volume 455)

Pages:

141-145

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.455.141

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Online since:

December 2010

Authors:

Y. Huang, Y. Liu, G.L. Zhu

Keywords:

Core Loss, Grain Oriented Silicon Steel, Laser Processing, Laser Scribing, Orthogonal Test, Technological Parameter

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