Performance and microstructure of Al-based grinding wheel

摘要

Diamond grinding wheel were prepared with Al-based bonding agent.The microstructure of Al-based diamond grinding wheel was observed by SEM.The fracture morphology,interface between bonding agent and diamond,and the elemental distribution in bonding agent were studied.The results showed that there were some Al-based agents retained on the diamond surface.Ti,Ni formed intermetallurgy phase with Al in the agent and reduced the plasticity of bonding agent.The service life of this Al-based diamond grinding wheel is proved by the grinding experiments to be three times as long as that of resin-bonded grinding wheel.