工艺参数对异型板状挤压铸造件质量的影响

Effect of Process Parameters on Quality of Special-shaped Plate-shaped Squeeze Casting Parts

为了解决大厚度异型板状铸件容易出现缩孔缩松缺陷而导致使用过程中提前失效的问题,提出了采用挤压铸造工艺成型的方案,并通过有限元软件Deform模拟分析了铸件的挤压成型过程,对比了模具预热温度对铸件温度分布的影响。结果表明,提高模具预热温度有利于挤压铸件温度分布的均匀性。

In order to solve the problem that large thick special-shaped plate castings are prone to produce shrinkage hole shrinkage defects and lead to early failure in the process of use,the scheme of squeeze casting was put forward.The extrusion process of the casting was simulated by finite element software Deform,and the influence of the die preheating temperature on the temperature distribution of the casting was compared.The results show that increasing the preheating temperature of the die is beneficial to the uniformity of the temperature distribution of the extrusion casting.