激光切割速度对铁基非晶合金磁性能的影响  

Effect of Laser Cutting Speed on Magnetic Properties of Iron-based Amorphous Alloy

作　　者：周浩 邓淼文 杨元政[1] 时俊磊 ZHOU Hao;DENG Miaowen;YANG Yuanzheng;SHI Junlei(School of Materials and Energy,Guangdong University of Technology,Guangzhou 510000,China)

机构地区：[1]广东工业大学材料与能源学院,广东广州510000

出　　处：《热加工工艺》2025年第5期46-50,共5页Hot Working Technology

基　　金：国家自然科学基金资助项目(52071089)。

摘　　要：利用激光切割技术对铁基非晶带材进行切割,在功率75 W、辅助气压0.1 MPa保持不变的条件下,分别用1、4、8 m/min三种不同切割速度制备得到环形叠片结构的铁基非晶磁芯。结果表明:相较未被激光切割处理的磁芯,激光切割制备的磁芯在直流测试下的矫顽力和交流测试条件下的损耗均有所上升。当激光切割速度为8 m/min时,铁基非晶合金的软磁性能恶化最小,矫顽力和损耗上升的最少。这是由于随着激光切割速度的增加,单位时间内激光集中在铁基非晶合金上的能量减少,热影响区和晶化区的大小都减小,对铁基非晶合金非晶态的影响减小。Iron-based amorphous alloy strip was cut by using laser cutting technology,and the iron-based amorphous cores with a toroidal laminated structure were prepared at three different cutting speeds of 1 m/min,4 m/min,8 m/min,laser power of 75 W and auxiliary air pressure of 0.1 MPa.The results show that the coercivity and loss of the cores prepared by laser cutting under DC test increase compared with those of the cores without laser cutting.When the laser cutting speed is 8 m/min,the deterioration of the soft magnetic properties of the Fe-based amorphous alloy is the least,and the increase of coercivity and loss is the least.This is due to the fact that as the laser cutting speed increases,the laser energy concentrated on the iron-based amorphous alloy per time decreases,and the size of both the heat-affected zone and the crystallization zone decreases,and the effect on the amorphous state of the iron-based amorphous alloy decreases.

关 键 词：激光切割 铁基非晶合金 软磁性能 热影响区 热处理 

分 类 号：TG485[金属学及工艺—焊接]