AC7A铝合金框架铸件工艺方案的模拟优化

陈萌; 杨弋涛

doi:10.15980/j.tzzz.2014.08.012

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AC7A铝合金框架铸件工艺方案的模拟优化
Processing Parameters Optimization for AC7A Aluminum Alloy Frame based on the Adstefan Software
2014年34卷第8期页码：887-889
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.08.012

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[1]陈萌,杨弋涛.AC7A铝合金框架铸件工艺方案的模拟优化[J].特种铸造及有色合金,2014,34(08):887-889.

Chen Meng, Yang Yitao. Processing Parameters Optimization for AC7A Aluminum Alloy Frame based on the Adstefan Software[J]. Special Casting & Nonferrous Alloys, 2014,34(8):887-889.
[1]陈萌,杨弋涛.AC7A铝合金框架铸件工艺方案的模拟优化[J].特种铸造及有色合金,2014,34(08):887-889. DOI： 10.15980/j.tzzz.2014.08.012.

Chen Meng, Yang Yitao. Processing Parameters Optimization for AC7A Aluminum Alloy Frame based on the Adstefan Software[J]. Special Casting & Nonferrous Alloys, 2014,34(8):887-889. DOI： 10.15980/j.tzzz.2014.08.012.

摘要

在试制AC7A铝合金框架铸件过程中

使用铸造模拟软件Adstefan

分析了铸件充型、凝固和应力产生的过程

认为内浇道流量严重不均导致的铸件温度场分布差异较大

引起大的铸造应力和应变

是裂纹产生的主要原因。优化后的铸造工艺方案

使铸件浇注、凝固过程更为合理

使铸造等效应力和应变分别降低了10%和20%

解决了铸造热裂的问题。

Abstract

Filling

solidification and stress formation in process of trial-producing AC7 Aaluminum alloy frame were simulated by the ADSTEFAN software to solve the practical problems.The results reveal that the severe heterogeneous flow in ingate take a dramatically temperature distribution difference in the frame to lead to the generation of severe casting stress and strain

which is responsible for the crack occurrence.Based on the simulated result

casting parameters were optimized to realize more rational pouring and solidification process

and equivalent stress and strain are decreased by 10%and 20%

respectively

eliminating the hot crack defects in the AC7 Aaluminum alloy frame.