Papers by Author: Lei Du

Abstract: Ceramic hollow ball Super hard composite abrasive has spherical hollow Mini-bore structure, This article introduced the structure of hollow spherical super hard abrasive, grinding model and the experimental investigations were conducted, It is found that the grinding wheel with hollow ball Super hard composite abrasive has more holes in the working layer of grinding wheel and can carrying more cooling fluid into the grinding area for heat exchanges, thus reducing the grinding temperature.

Abstract: The dressing processes are conducted on the diamond grinding wheels using the rotary diamond tools and compared between the single point diamond dresser and the rotary diamond dressing tool in the following aspects, including the dressing force, tool wearing, dressing efficiency. The result shows that, the dressing performance of the rotary diamond tools is remarkable better than that of the conventional dressing method.

Abstract: Ceramic is difficult to cut with normal machining method in precision intricate profile. The grinding process with diamond abrasive wheel is an effective process to machining ceramic materials. In this paper, a precise form-grinding method of ceramic materials with diamond grinding wheel is introduced. The tolerance of intricate profiler precision degree by this grinding process is less than 0.005mm. The machining process contains many techniques as high efficiency of profiler dressing technique of diamond wheel and form grinding process of ceramic. It gives some references on the developing of ceramic precision intricate profile machining techniques forward.