As a cutting tool, pcd blanks are widely used in oil and gas drilling operations. During the drilling process, due to the combined effect of axial force and horizontal cutting force, the friction 

between the drill and the hole wall, the bending of the drill string, the uneven bottom hole, the residual rock powder, the vibration of the drill, etc., Diamond compact are subjected to great 

impact. The impact resistance of the diamond compact reflects the toughness and bond strength of the composite sheet. It is a comprehensive index and the key to determining the

effectiveness of the use.