复杂薄壁铝合金铸件铸造过程数值模拟

李浩; 康永飞; 白朴存

doi:10.15980/j.tzzz.2019.11.010

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复杂薄壁铝合金铸件铸造过程数值模拟
Numerical Simulation of Casting Process for Complex Thin-walled Aluminum Alloy Castings
2019年39卷第11期页码：1195-1198
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.11.010

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[1]李浩,康永飞,白朴存.复杂薄壁铝合金铸件铸造过程数值模拟[J].特种铸造及有色合金,2019,39(11):1195-1198.

Li Hao, Kang Yongfei, Bai Pucun. Numerical Simulation of Casting Process for Complex Thin-walled Aluminum Alloy Castings[J]. Special Casting & Nonferrous Alloys, 2019,39(11):1195-1198.
[1]李浩,康永飞,白朴存.复杂薄壁铝合金铸件铸造过程数值模拟[J].特种铸造及有色合金,2019,39(11):1195-1198. DOI： 10.15980/j.tzzz.2019.11.010.

Li Hao, Kang Yongfei, Bai Pucun. Numerical Simulation of Casting Process for Complex Thin-walled Aluminum Alloy Castings[J]. Special Casting & Nonferrous Alloys, 2019,39(11):1195-1198. DOI： 10.15980/j.tzzz.2019.11.010.

摘要

介绍了一种复杂薄壁型铝合金铸件的铸造工艺

并设计了环形底注式双浇道的浇注系统。借助ProCAST软件对铸造过程进行模拟

对初始方案充型和凝固过程的温度场进行分析

确定铸件可能产生缩松、缩孔缺陷的位置及原因。通过在合适位置添加冒口和冷铁

改变铸件的凝固顺序

实现了对缺陷位置进行有效补缩的目的

从而提高了铸件的成品率。

Abstract

The casting process of complex thin-wall aluminum alloy castings was described

and a double runner system with annular bottom injection was designed.The casting process was simulated by using ProCAST software

and temperature field of the filling and solidification process of the initial design was analyzed to determine the locations of shrinkage cavity and porosity of the casting.Through adding risers and cold iron in the appropriate locations to change the solidification sequence of the casting

the defect locations were effectively feeded and the casting production yield was improved.