Diamond grinding disc capable of achieving high-depth grinding and preparation process thereof

The invention discloses a diamond grinding disc capable of achieving high-depth grinding and a preparation process thereof, and belongs to the technical field of diamond grinding tools. The diamond grinding disc comprises a barrel-shaped base and a plurality of diamond grinding blocks, the diamond grinding blocks are evenly distributed along an annular plane at one end of the barrel-shaped base, the diamond grinding blocks are in a sector ring shape, and outer sector ring bodies and inner sector ring bodies of the diamond grinding blocks protrude out of the outer edge and the inner edge of the annular plane of the base respectively. Raw materials of the diamond grinding block comprise copper, tin, iron, nickel, cobalt, diamond and graphite spherulites, through formula optimization and diamond grinding block structure innovation, a grinding disc can dissipate heat more effectively, the best sharpness is kept, the diamond is rapidly exposed, and the service life of the grinding disc is prolonged. And higher wor