金属型重力铸造复杂铝合金壳体及模具设计

柏立敬; 王振良

doi:10.15980/j.tzzz.2019.04.023

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金属型重力铸造复杂铝合金壳体及模具设计
Production of Aluminum Alloy Housing Parts with Complicated Structure by Permanent Mold Casting and Its Mould Design
2019年39卷第4期页码：439-441
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.04.023

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[1]柏立敬,王振良.金属型重力铸造复杂铝合金壳体及模具设计[J].特种铸造及有色合金,2019,39(04):439-441.

Bai Lijing, Wang Zhenliang. Production of Aluminum Alloy Housing Parts with Complicated Structure by Permanent Mold Casting and Its Mould Design[J]. Special Casting & Nonferrous Alloys, 2019,39(4):439-441.
[1]柏立敬,王振良.金属型重力铸造复杂铝合金壳体及模具设计[J].特种铸造及有色合金,2019,39(04):439-441. DOI： 10.15980/j.tzzz.2019.04.023.

Bai Lijing, Wang Zhenliang. Production of Aluminum Alloy Housing Parts with Complicated Structure by Permanent Mold Casting and Its Mould Design[J]. Special Casting & Nonferrous Alloys, 2019,39(4):439-441. DOI： 10.15980/j.tzzz.2019.04.023.

摘要

对某复杂铝合金壳体零件的结构进行分析

确定了采用金属型重力铸造工艺。首先进行了机开模的模具结构设计

进行实际验证后

发现该工艺存在厚大处易产生缩松、薄壁处易产生浇不足、远端易产生冷隔

且顶出和取件困难等问题

因此对铸造工艺进行了改进并对模具结构进行了优化设计

解决了部分问题。为彻底解决铸件缺陷的问题

改进方案设计手开模

铸件水平放置

保证顺序凝固

冒口设在侧面

同时对热节处设置补缩通道

并用覆膜砂芯代替抽芯

再次试制

可以得到外观良好

内在品质符合要求的产品。

Abstract

The structure of a complex aluminum alloy housing parts was analyzed

and the metal gravity casting process was adopted.Firstly

the mold structure design of machine die was carried out according to the initial casting process scheme.After the actual verification

it is found that there exists some problems.So the casting process scheme was modified

and some problems in the initial trial production were solved.For completely solving the problems

the mold structure of hand open die was designed.The re-trial production verified that the second process scheme completely solved the problems.The second process scheme could obtain the products with uniform appearance and intrinsic quality.