铝合金电机壳低压铸造数值模拟及工艺优化

程颖; 王淇奥; 杜明; 张花蕊

doi:10.15980/j.tzzz.2021.07.002

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铝合金电机壳低压铸造数值模拟及工艺优化
Numerical Simulation and Process Optimization of Low-pressure Casting for Aluminum Alloy Motor Shell
2021年41卷第7期页码：802-808
纸质出版日期： 2021 ，
DOI： 10.15980/j.tzzz.2021.07.002

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程颖, 王淇奥, 杜明, 等. 铝合金电机壳低压铸造数值模拟及工艺优化[J]. 特种铸造及有色合金杂志, 2021,41(7):802-808.

Cheng Ying, Wang Qi’ao, Qian Chenhui, et al. Numerical Simulation and Process Optimization of Low-pressure Casting for Aluminum Alloy Motor Shell[J]. Special Casting & Nonferrous Alloys, 2021,41(7):802-808.
程颖, 王淇奥, 杜明, 等. 铝合金电机壳低压铸造数值模拟及工艺优化[J]. 特种铸造及有色合金杂志, 2021,41(7):802-808. DOI： 10.15980/j.tzzz.2021.07.002.

Cheng Ying, Wang Qi’ao, Qian Chenhui, et al. Numerical Simulation and Process Optimization of Low-pressure Casting for Aluminum Alloy Motor Shell[J]. Special Casting & Nonferrous Alloys, 2021,41(7):802-808. DOI： 10.15980/j.tzzz.2021.07.002.

摘要

采用MAGMA模拟软件对铝合金水冷电机壳低压铸造充型和凝固过程进行了模拟

预测了铸造缺陷产生的区域并分析了原因

在此基础上优化了铸造工艺方案并进行了试验验证。结果表明

通过分析模具温度场

合理调整模具结构并增设冷却通道以增强冷却效果

可以有效减少缩孔、缩松缺陷。按照优化后工艺生产的电机壳性能得到显著提高

且品质和性能指标均满足使用要求。

Abstract

The casting process simulation software MAGMA was adopted to simulate the filling and solidification process of the low-pressure casting for aluminum alloy motor shell. The generation area of casting defects was predicted and the causes were analyzed. On this basis

the solidification process was optimized and verification experiment was conducted. The results indicate that the shrinkage cavity and porosity defects can be effectively reduced by analyzing mold temperature field

properly adjusting the mold structure and adding cooling channels to enhance the cooling effect. The performance of the motor shell produced by the optimized process was remarkably improved

where all quality and performance indicators meet the practical requirement.