Discrete element simulation of powder laying process in selective surface laser sintering
Powder laying process is one of the important technological processes in selective surface laser sintering.In order to study the influence of different technological parameters on the quality of powder bed powder during powder laying process,a roller and scraping powder laying structure was studied and designed.PES was used as sintered powder material,and the powder laying process was simulated by using EDEM software.The effects of the moving speed V of the roller and the Angle α of the scraper end on the quality of powder bed powder were simulated and an-alyzed.The results show that the higher the moving speed V of roller and scraper,the worse the quality of laying powder;The tilt Angle of the scraper end α has little effect on the quality of powder bed powder.
selective surface laser sinteringdiscrete element simulationpowder bed qualityPES
万方数据
维普
