Rapid Preparation and Study on the Wear-resistance of the Pattern Material for Sand Casting
In this paper,the rapid sand mold pattern preparation and its coating are developed.Serial experiments on the effect of Al2O3 particle additions in the coating on the wear resistant properties of pattern are investigated with wear-resistant test machine and SEM and AFM.The results of experiments indicate that the 5% of Al2O3 addition has the lowest weight loss and with the increase of Al2O3 particle addition,friction coefficient of the composite coating is increased.The wear mechanism of composite coating is from the adhesive mechanism to the plough mechanism with increasing addition of Al2O3 particle.