( 中南大学 粉末冶金国家重点实验室， 长沙 410083)
摘 要: 用MSC.Marc软件模拟了3种不同装粉方式下钛粉压制成形过程中粉末的流动情况及压坯的密度分布规律。结果表明： 粉末装粉方式对粉末压制过程及压坯密度有较大的影响， 与平式装粉方式相比， 采用凸式装粉, 试样的烧结坯密度提高了6%， 孔隙分布的均匀性也得到相应的改善。
关键字: 钛粉; 粉末压制; 数值模拟; 装粉方式
powder on titanium powder compaction
（ State Key Laboratory for Powder Metallury,
Central South University, Changsha 410083, China）
Abstract: With the aid of MSC.Marc Software, the numerical simulation of compaction on titanium powder loading in three different kinds of ways was carried out. The results show that the loading ways of powder greatly affect the density and porosity distribution, the sintered density of samples by the way of convex powder loading increases by 6% than that of flat way. The uniformity of porosity distribution has also been improved.
Key words: titanium powder; powder compaction; numerical simulation; way of powder loading
