银基钎料钎焊单层金刚石砂轮的试验  

Experimental Investigation on Induction Brazing of Diamond Grinding Wheel

作　　者：武志斌[1] 徐鸿钧[1] 肖冰[1] 

机构地区：[1]南京航空航天大学机电工程学院,南京210016

出　　处：《焊接学报》2001年第1期24-26,共3页Transactions of The China Welding Institution

基　　金：国家自然科学基金资助项目!(5 96 75 0 5 7);航空基础科学基金资助项目!(97H5 2 0 81);江苏省应用基础基金资助项目!(BT95 0 5 2 1)

摘　　要：概述了单层高温钎焊超硬磨料砂轮的工艺优势 ,这种新型超硬磨料砂轮以其卓越的磨削性能在今后逐步替代传统电镀砂轮应是一种无法抗拒的必然趋势。鉴于它极其广阔的应用前景 ,国内在推广应用超硬磨料砂轮时也必将大力开发此种单层钎焊砂轮。本文利用高频感应钎焊的方法 ,用Ag -Cu合金和Cr粉共同作中间层材料 ,在一定的钎焊温度和时间下 ,实现了金刚石与钢基体间的牢固连接。经X射线能谱及X射线衍射分析发现Cr与金刚石之间形成Cr3C2 ,这是实现合金层与金刚石有较高结合强度的主要因素。This paper briefly introduces the technological advantages of a brazed monolayer superabrasive grinding wheel. It must be an inevitable tendency to replace the traditional electroplated grinding wheel in the future due to its excellent grindability. Because of the prospects in wide application of this grinding wheel,there can be no turning back in developing this wheel in our country. In this paper the strong bonding between the steel base and diamond was performed by induction brazing under the controlled temperature and time. The filled intermediate layer materials are reactive metal Cr powder and Ag Cu alloy foil. The results show that the achromium carbide film has been formed on the interface between the diamond and the filled intermediate layer. It can be considered that the metallurgical bonding has formed in the interface between diamond intermediate. Finally, it is proved through the grinding experimental tests.

关 键 词：砂轮 高温钎焊 单层 金刚石 银基纤料 钎焊 

分 类 号：TG743[金属学及工艺—刀具与模具] TG454