Effects of annealing on magnetic properties of electrical steel and performances of SRM after punching

Chao Chien Chiang; Andrew M. Knight; Min Fu Hsieh; Mu Gong Tsai; Bernard Haochih Liu; In Gann Chen; Zwe Lee Gaing; Mi Ching Tsai

doi:10.1109/TMAG.2014.2329708

Effects of annealing on magnetic properties of electrical steel and performances of SRM after punching

Chao Chien Chiang, Andrew M. Knight, Min Fu Hsieh, Mu Gong Tsai, Bernard Haochih Liu, In Gann Chen, Zwe Lee Gaing, Mi Ching Tsai

研究成果: Article › 同行評審

30 引文斯高帕斯（Scopus）

摘要

This paper compares the microstructure and magnetic properties of punched electrical steel before and after annealing. The effects of this manufacturing process on performance of a switched reluctance motor (SRM) are also investigated. The punching of laminations distorts the grains near the cut edges, and therefore an anneal process is used to recover the damage caused by punching. In this paper, samples are annealed at 750 °C for an hour under a N₂ atmosphere. The damaged regions and corresponding recovery after annealing are observed under microscope as the measured core losses are improved up to 37%. The SRM performance is measured and it is found that the torque density can be enhanced when using the annealed electrical steel.

原文	English
文章編號	6971254
期刊	IEEE Transactions on Magnetics
卷	50
發行號	11
DOIs	https://doi.org/10.1109/TMAG.2014.2329708
出版狀態	Published - 2014 11月 1

All Science Journal Classification (ASJC) codes

電子、光磁材料
電氣與電子工程

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10.1109/TMAG.2014.2329708

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abstract = "This paper compares the microstructure and magnetic properties of punched electrical steel before and after annealing. The effects of this manufacturing process on performance of a switched reluctance motor (SRM) are also investigated. The punching of laminations distorts the grains near the cut edges, and therefore an anneal process is used to recover the damage caused by punching. In this paper, samples are annealed at 750 °C for an hour under a N2 atmosphere. The damaged regions and corresponding recovery after annealing are observed under microscope as the measured core losses are improved up to 37%. The SRM performance is measured and it is found that the torque density can be enhanced when using the annealed electrical steel.",

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AU - Chiang, Chao Chien

AU - Knight, Andrew M.

AU - Hsieh, Min Fu

AU - Tsai, Mu Gong

AU - Liu, Bernard Haochih

AU - Chen, In Gann

AU - Gaing, Zwe Lee

AU - Tsai, Mi Ching

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Effects of annealing on magnetic properties of electrical steel and performances of SRM after punching

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