银基钎料钎焊单层金刚石砂轮的试验

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中，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，实现了金钢石和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与金钢石之间形成Cr3C2。这是实现合金层与金钢石有较高结合强度的主要因素，最后通过磨削试验证实了金钢石确实有较高的把持强度。

Experimental Investigation on Induction Brazing of Diamond Grinding Wheel

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.