Application of Cu-P pre-alloyed powder in the carcass of diamond tools

The carcass of diamond tools, which contained Cu-P pre-alloyed powder by hot pressing sintering process, was studied. The powder took through the instantaneous liquid brazing copper and iron based powder, improving the density, hardness and strength of the carcass. Cu-P pre-alloyed powder could improve the wettability and binding force of copper and iron powders, and form brittle phases at grain boundaries, thus increasing the brittleness of carcass and the sharpness of diamond tools. Cu-P pre-alloyed powder have broad prospects in the manufacturing of diamond tools.