From extending the use of deep drilling and machining to mineral exploration

Diamond composite sheet combines high hardness, good wear resistance and impact resistance strong advantages carbide, has expanded from the use of deep drilling and machining to mineral exploration and other fields, the composite films are gradually replaced by single-crystal diamond and superhard materials become an important one in the family. Polycrystalline Diamond performance indicators are heat resistance,  polycrystalline diamond  and impact strength, and hardness, strength, workability, weldability, etc. In some cases, are more important for different uses of the diamond is not the same performance  Polycrystalline diamond  [2]. Will now wear resistance, heat  synthetic diamond  and impact toughness as a measure of the main indicators of good or bad quality PDC. But because of the presence of each performance factor of mutual restraint, in a complex geological environment, it is sometimes a need to highlight the performance, which according to geological conditions, drilling equipment and targeted at lower cost cutting teeth projecting the PDC drill a function characteristics rather than a comprehensive and integrated performance.