Professor Wang Chengyong's team at Guangdong University of Technology successfully developed a new type of diamond grinding wheel

Professor Wang Chengyong's team at Guangdong University of Technology successfully developed a new type of diamond grinding wheel

Diamond grinding wheels are considered to be ideal tools for processing hard and brittle materials such as ceramics, glass and sapphire due to their high sharpness, mechanical properties and grinding efficiency. However, traditional diamond grinding wheel manufacturing processes, such as electroplating, sintering and brazing processes, have defects such as low manufacturing efficiency, high cost and serious pollution in the manufacturing process; and the interface adhesion between diamond abrasives and the matrix is ​​low, the grinding wheel has a short service life and low processing efficiency.

Recently, Professor Wang Chengyong's team at Guangdong University of Technology proposed a new type of single-layer diamond grinding wheel using zirconium-based amorphous alloy as a binder and diamond particles as abrasives. The proposed new method utilizes the plastic behavior of zirconium-based amorphous alloys in the supercooled liquid phase, and realizes the efficient and controllable manufacturing of single-layer diamond grinding wheels through rapid heating and pressurization. The focus was on studying the rheological behavior of amorphous alloys in the supercooled liquid phase under rapid heating and pressurization; using Ti-coated diamond particles as abrasives, the interface structure and composition of titanium-coated diamond-zirconium-based amorphous alloys were explored, revealing their interface bonding mode and bonding strength; the main failure modes and surface integrity in the grinding process were identified, and the grinding performance of the manufactured single-layer diamond grinding wheel was compared with that of commercial electroplated and brazed grinding wheels, providing new strategies for the design and manufacture of high-performance single-layer diamond grinding wheels for processing hard and brittle materials.