| 用激光加工硅钢片降低铁损残余变形的云纹干涉法测量研究 |
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| 引用本文： | 谢惠民,邹大庆,李劲东,孙守光,李旭昌,戴福隆,张维.用激光加工硅钢片降低铁损残余变形的云纹干涉法测量研究[J].光学技术,1999(3). |
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| 作者姓名： | 谢惠民 邹大庆 李劲东 孙守光 李旭昌 戴福隆 张维 |
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| 作者单位： | 1. 清华大学,工程力学系,北京,100084
2. 清华大学强度与结构开放实验室客座研究人员 |
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| 摘 要： | 应用双镀层高温高频光栅和云纹干涉法对激光加工硅钢片降低铁损的残余变形进行了测量研究。分别对采用ＣＯ２连续激光和ＹＡＧ脉冲激光不同参数处理后硅钢片表面的残余变形进行了测量，对双镀层Ｃｒ－Ｃｒ光栅的制作方法、云纹干涉法测量残余变形的原理进行了讨论。实验结果表明，硅钢片在激光加工后，试件表面产生负性残余应变是细化磁畴，降低铁损的直接原因
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| 关 键 词： | 高温高频光栅 云纹干涉法 硅钢片，铁损 |
Residual deformation analysis of grain-oriented silicon steel sheets with lowered core loss using laser processing |
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| XIE Hui-min,ZOU Da-qing,LI Jin-dong,SUN Shou-guang,LI Xu-chang,DAI Fu-long,ZHANG Wei.Residual deformation analysis of grain-oriented silicon steel sheets with lowered core loss using laser processing[J].Optical Technique,1999(3). |
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| Authors: | XIE Hui-min ZOU Da-qing LI Jin-dong SUN Shou-guang LI Xu-chang DAI Fu-long ZHANG Wei |
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| Abstract: | In combination of two deposited layers grating for high temperature and moire interferometry, the residual deformations of silicon steel sheets with lowered core loss by strong power laser were measured. The silicon sheets were processed with different parameters of power under YAG and CO 2 laser. The residual deformation rules along x and y axes were obtained. The experimental results verified that the specimen surface was under the state of compression after processed with strong power laser. And thus the ferromagnetic domain was finde, the core loss was lowered. |
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| Keywords: | high temperature grating moire interferometry silicon sheet core loss |
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