Study on the brazing filler metal used in dip brazing diamond bit

Dip brazing can be pre-set the shape of the molds to get the complex shape and precise diamond drilling bits. It is frequently used in the diamond crystal, man-made diamond bits, diamond reamer. But in the dip brazing more than 1000 high temperature causes damage of diamond, resulting in cutting ability and grinding ability reduce. In this paper, the melting temperature of maceration alloys between 700°C~800°C, the low melting point, good wettability and good dip brazing. At the same time, we do the hardness test in the different processing conditions. The result shows that under the state of annealing and quenching, the hardness of solder reduces significantly.