Performance of orderly-arrangement hot-pressed impregnated diamond bit

Dispensing and hot-press were adopted to make impregnate bits with orderly arranging diamond grits. The surface morphology of the drill bit was observed by the shape analyzer and the drilling performance was studied through laboratory drilling experiments. The results show that the drilling efficiency of the ordered drill bit is 23% higher than that of the random arrangement bit under the same number of input feet, and the diamond particle edge height of the ordered arrangement bit is 1 times as high as that of the random arrangement bit. The matrix wear of the ordered arrangement bit is in favor of the tadpole shape that helps the diamond particles self sharpening. The diamond surface of the ordered drill bit appears to be slightly broken, compared with the two kinds of extreme wear morphology of the random drills, the orderly arrangement advantage in the drilling process is obvious.