Localized investigation of magnetic bulk property deterioration of electrical steel: Analysing magnetic property drop thorough mechanical and laser cutting of electrical steel laminations using neutron grating interferometry
Localized investigation of magnetic bulk property deterioration of electrical steel: Analysing magnetic property drop thorough mechanical and laser cutting of electrical steel laminations using neutron grating interferometry
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电工钢磁性整体性能劣化的局部研究：使用中子光栅干涉测量法通过电工钢叠片的机械和激光切割分析磁性能下降
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
E. Lehmann
中科院分区：
文献类型：
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作者：
René Siebert;A. Wetzig;E. Beyer;B. Betz;C. Grunzweig;E. Lehmann
电工钢叠片制造相关磁性能退化的知识对于选择正确的阻隔材料等级和设计高效电机是必不可少的。到目前为止，由于缺乏足够的调查方法来揭示有关令人不安的分层区域的当地信息，这些影响仍未被发现。在这里，我们展示了如何使用的非破坏性测试方法的基础上的中子光栅干涉设置提供了空间分辨的信息，局部体畴壁密度。比较了不同的代表性制造技术的磁通密度恶化，如冲压，机械切割的切纸机，以及应用工业高功率激光束源的激光熔化切割。
The knowledge of manufacturing related magnetic property degeneration in electrical steel laminations is essential for selecting correct obstructing material grades and designing efficient electrical machines. Until now these effects stay undiscovered due to the lack of adequate investigation methods that reveal local information on troubling lamination areas. Here we show how the use of a non-destructive testing method based on a neutron grating interferometry setup provides spatially-resolved information about the local bulk domain wall density. Different representative manufacturing techniques are compared in terms of magnetic flux density deterioration such as punching, mechanically cutting by guillotine as well as laser fusion cutting applying industrial high power laser beam sources.