Composite superhard stacked abrasive and preparation method thereof

The invention provides a composite superhard stacked abrasive material and a preparation method thereof, belongs to the technical field of abrasive materials and abrasive tools, and aims to solve the technical problems that the stacked abrasive material is poor in toughness and not durable. The preparation method comprises the following steps: material mixing: uniformly mixing the ceramic bond, the superhard abrasive, the pore-forming material, the binder and the wetting agent to obtain a mixture; banburying, granulating and degreasing; sintering the green body to obtain a prefabricated porous stacked abrasive material; infiltrating: infiltrating the prefabricated porous stacked abrasive material by using a metal alloy infiltrating agent to prepare a composite stacked abrasive material finished product. According to the method, after the stacked abrasives containing a large number of communicated air holes are prefabricated and the metal alloy is subjected to vacuum pressure infiltration, the air holes of the