铝钨粉末合金涡旋定盘挤压成形工艺研究  

Research on Extrusion Forming Process of Aluminum Tungsten Powder Alloy Fixed Scroll Plate

作　　者：张福祥[1] 张治民[1] 薛勇[1] 刘翠侠[1] 

机构地区：[1]中北大学材料科学与工程学院,山西太原030051

出　　处：《热加工工艺》2015年第7期149-152,共4页Hot Working Technology

基　　金：国家973研究专项(2012CB626808);山西省自然科学基金(2013011022-5)

摘　　要：利用Gleeble-1500热模拟机测试了钨铝粉末合金在变形温度为420、450、480、510、540℃,应变速率分别为0.001、0.01、0.1、1 s-1条件下的流变力学行为。通过有限元软件对涡旋定盘挤压成形过程进行了数值模拟,确定了合理的挤压成形工艺,并通过试验进行了验证。比较了零件不同部位的微观组织,最终获得了合格的挤压件。The theological behaviors of aluminum tungsten powder alloy at strain rates of 0.001, 0.01, 0.1, 1s^-1 and deformation temperature of 420,450,480, 510, 540℃ were tested by using Gleeble-1500 thermal simulation machine. The fixed scroll plate extrusion forming process was numerically simulated by using the finite element sol, ware. The reasonable extrusion process was determined and verified through physics experiments. The microstructures of different component in different positions were compared. Finally, the qualified extrusion parts were obtained.

关 键 词：铝钨合金 涡旋定盘 背压成形 

分 类 号：TG376[金属学及工艺—金属压力加工]