潜孔钻机已在我国冶金矿山、水电、建筑、铁道和港湾工程中广泛采用。作为潜孔钻眼的主要工具——钻头,是一种用量大、费用高的易耗品,因此提高潜孔钻头质量,一直是科研、生产的重要课题之一。过去都是使用镶焊硬质合金片的潜孔钻头,合金片在钻头端面上呈“十”字或“×” DTH drilling rig has been widely used in China’s metallurgical mining, hydropower, construction, railways and harbor engineering. As the main tool for downhole drilling - drill bit, is a large amount of expensive consumables, therefore improving the quality of the drilled hole has been an important issue in scientific research and production. In the past are the use of diamond-studded carbide drill holes drilled, alloy sheet in the drill end was “ten” or “×”