交变磁场对W6Mo5Cr4V2高速钢刀具硬度的影响  

Effects of alternating magnetic field on hardness of W6Mo5Cr4V2 high-speed steel cutting tool

作　　者：赵海生[1] 刘政[1] 张伟[1] 周刘勇[1] 沈俊波 ZHAO Hai-sheng;LIU Zheng;ZHANG Wei;ZHOU Liu-yong;SHEN Jun-bo(School of Mechanical and Electronic Engineering, Jiangxi University of Science and Technology, Ganzhou 34,1000, Jiangxi, China)

机构地区：[1]江西理工大学机电工程学院

出　　处：《钢铁研究学报》2018年第5期368-372,共5页Journal of Iron and Steel Research

基　　金：国家自然科学基金资助项目(50801032);江西省自然科学基金资助项目(2008GQC0027)

摘　　要：为了研究交变磁场对W6Mo5Cr4V2高速钢刀具硬度的影响,通过自制磁化试验平台探究不同磁场频率、磁场时间对高速钢刀具硬度的影响规律,并使用Origin软件来绘制W6Mo5Cr4V2材料的磁滞曲线,进一步分析铁磁材料的磁化行为。试验结果表明,在磁化参数为10Hz的低频率磁化条件下,高速钢刀具硬度提高了4.58HRC;在磁化时间为30s时,硬度变化率比在120s条件下多出了4.54%;交变磁场处理可以使刀具的弥散碳化物含量提高,强化马氏体基体组织,使高速钢刀具硬度提高。In order to study the effect of alternating magnetic field on the hardness of W6Mo5Cr4V2 high-speed steel cutting tool,the influence of different magnetic field frequency and magnetic time on the hardness of highspeed steel cutting tool was studied by the self-made magnetized experiment platform,using the Origin software to draw a magnetic hysteresis curve of W6Mo5Cr4V2 materials,the magnetization of ferromagnetic materials was further analyzed.The experimental results show that：under the low frequency magnetization condition of the magnetization parameter of 10 Hz,the hardness of high speed steel cutting tool improves 4.58 HRC;the rate of hardness change at magnetization time of 30 sis 4.54% higher than that at magnetization time of 120 s;alternating magnetic field processing can improve the dispersion carbide content of the tool,reinforce materialistic matrix,improve the hardness of high speed steel tool.

关 键 词：交变磁场 磁化参数 高速钢 硬度 

分 类 号：TG711[金属学及工艺—刀具与模具]