Experimental Study on the Grinding Process and Adhesion Properties of Aluminum-Magnesium Alloy Abrasive Belts

Aluminium-magnesium alloy is widely used in various fields due to its good material properties such as light weight and corrosion resistance. In view of the low efficiency of aluminum grinding alloy grinding wheel, the difficult surface quality and the surface adhesion of grinding wheel, this study proposed the use of abrasive belt grinding technology for the processing of aluminium-magnesium alloys. In order to study the law of grinding process of aluminium-magnesium alloy abrasive belt as well as the problem of adhesion characteristics easily produced in the grinding process, the study used 36, 60 two mesh alumina ceramic, silicon carbide, zirconium corundum abrasive belts to carry out experiments on aluminium-magnesium alloy grinding, and analyzed the material removal rate of aluminium-magnesium alloy, the noise of grinding, the energy consumption of grinding, and the rule of change of the abrasive belt material adherence rate under different grinding pressures and the rotational speed of abrasive belt. The results show that: under the same grinding parameters, zirconium corundum abrasive belt has the highest material removal rate and the lowest adhesion rate due to better abrasive toughness, impact resistance and sharpness, but the grinding noise and energy consumption are greater. So in aluminium-magnesium alloy abrasive belt grinding, zirconium corundum abrasive belts can be chosen to improve the grinding efficiency if the influence of noise and energy consumption is not considered. After the grinding pressure of three abrasive belts reaches 20 N, the adhesion rate of the abrasive belt reaches a stable formation stage, and the abrasive chips block the abrasive grain gap, which reduces the material removal efficiency. This conclusion can provide a reference for the selection of grinding pressure parameters for aluminium-magnesium alloy grinding belts. Within the range of process parameters of 10~30 N and 1500~3500 r/min, the grinding pressure and the speed of abrasive belts have a great influence on the material removal rate and adhesion rate. However, the grinding belt speed has a greater effect on grinding noise, and the grinding pressure has a greater effect on grinding energy consumption. The conclusions of the study can provide certain reference for improving the efficiency and quality of aluminium-magnesium alloy belt grinding and reducing the grinding noise and energy consumption.