Xiang Qian, Cheng Lin, Wu Kaiming
The State Key Laboratory of Refractories and Metallurgy, Hubei Province Key Laboratory of Systems Science on Metallurgical Processing, International Research Institute for Steel Technology, Collaborative Center on Advanced Steels, Wuhan University of Science and Technology, Wuhan 430081, China.
Wuhan Iron and Steel Co., Ltd., Wuhan 430081, China.
Materials (Basel). 2023 Feb 16;16(4):1642. doi: 10.3390/ma16041642.
Based on the application demand of laser cutting technology in non-oriented electrical steel, the influencing mechanisms of laser cutting parameters on the magnetic properties of 50W350 high-grade non-oriented electrical steel were investigated in this work. The specific total loss was utilized to evaluate the quality of cutting methods and the cutting parameter combinations. The results showed that the deterioration of the specific total loss was mainly due to the increase in hysteresis loss. Compared to traditional mechanic shearing, laser cutting generally degrades the magnetic properties under the evaluation index Δ. However, in some cases, laser cutting is superior to the mechanic shearing method under the evaluation index Δ. The main parameters related to laser cutting exhibited complicated influencing mechanisms on the specific total loss of 50W350 high-grade non-oriented electrical steel. However, based on the results of the experiments designed using the Box-Behnken model, the laser cutting parameters were optimized and the evaluation indexes have been significantly improved.
基于激光切割技术在无取向电工钢中的应用需求，本文研究了激光切割参数对50W350高级无取向电工钢磁性能的影响机制。利用比总损耗来评估切割方法和切割参数组合的质量。结果表明，比总损耗的恶化主要是由于磁滞损耗的增加。与传统机械剪切相比，在评估指标Δ下，激光切割通常会使磁性能下降。然而，在某些情况下，在评估指标Δ下激光切割优于机械剪切方法。与激光切割相关的主要参数对50W350高级无取向电工钢的比总损耗表现出复杂的影响机制。然而，基于使用Box-Behnken模型设计的实验结果，对激光切割参数进行了优化，评估指标得到了显著改善。
