Abstract
A numerical simulation model was developed to analyze the powder composite process by Discrete Element Method (DEM). The effects of an existence of scraper and its scraper angle were discussed using the simulation in terms of the impact energy and mixing degree of particles, which would be correlated with composite process. The particles motion in the powder composite process is strongly dependent on the existence of scraper and its scraper angle. The impact energy with the scraper is around two times larger than that without scraper and impact energy reaches the maximum value at 180 degree. In addition, scraper has a major effect on the mixing performance. The mixing index with the scraper is around two times higher than that without scraper.
The simulation model proposed will be used to understand powder composite process and optimize operation conditions.
