您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 15    No. 6    December 2005

[PDF Download]    [Flash Online]

    

High temperature brazing of diamond tools
YAO Zheng-jun(姚正军)1, SU Hong-hua(苏宏华)1
FU Yu-can(傅玉灿)2, XU Hong-jun(徐鸿钧)2 

1. College of Materials Science and Technology, 
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 
2. College of Mechanical and Electrical Engineering, 
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Abstract: A new brazing technique of diamond was developed. Using this new technique optimum chemical and metallurgical bonding between the diamond grits and the carbon steel can be achieved without any thermal damages to diamond grits. The results of microanalysis and X-ray diffraction analysis reveal that a carbide layer exists between the diamond and the matrix, which consists of Cr3C2, Cr7C3 and Cr23C6. Performance tests show that the brazed diamond core-drill has excellent machining performance. In comparison with traditional electroplated diamond core-drill, the brazed diamond core-drill manufactured using the new developed technique has much higher machining efficiency and much longer operating life.

 

Key words: high temperature brazing; microanalysis; diamond tool; machining test

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn