半固态A356压铸件充型与凝固过程的数值模拟

郭广思; 辛恩承

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半固态A356压铸件充型与凝固过程的数值模拟
Numerical Simulation of Filling and Solidification Process in Die Casting Semi-solid A356 Alloy
2011年31卷第5期页码：421-423
纸质出版日期： 2011 ，
DOI：

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[1]郭广思,辛恩承.半固态A356压铸件充型与凝固过程的数值模拟[J].特种铸造及有色合金,2011,31(05):421-423+387.

Guo Guangsi, Xin Encheng. Numerical Simulation of Filling and Solidification Process in Die Casting Semi-solid A356 Alloy[J]. Special Casting & Nonferrous Alloys, 2011,31(5):421-423.
[1]郭广思,辛恩承.半固态A356压铸件充型与凝固过程的数值模拟[J].特种铸造及有色合金,2011,31(05):421-423+387. DOI：

Guo Guangsi, Xin Encheng. Numerical Simulation of Filling and Solidification Process in Die Casting Semi-solid A356 Alloy[J]. Special Casting & Nonferrous Alloys, 2011,31(5):421-423. DOI：

摘要

利用ProCAST软件对A356合金半固态压铸件下壳体进行耦合数值模拟。结果表明

在模具温度为220℃

充型温度为590℃、压射速度为5m/s时

半固态浆料充型平稳

温度场分布均匀

减少了缩孔、缩松等缺陷

为A356合金半固态压铸成形工艺的制定和优化提供了依据。采用此工艺参数

生产出合格铸件。在该件上所需部位可以钻螺纹孔

与其他零件装配使用。通过试验

验证了数值模拟优化工艺参数的合理性。

Abstract

Filling and solidification process of die casting semi-solid A356 aluminum alloy under-shell were simulated by the ProCAST software.The results show that

with preheating mould at 220℃ and filling at 590 ℃ as well as filling at 5m/s

semi-solid slurry exhibits smooth filling behavior with uniform temperature field distribution

effectively eliminating shrinkage hole（porosity）

which provides a reference to the design and optimization of die casting semi-solid A356 aluminum alloy parts.Qualified under-shell was produced by using the optimized processing parameters.Experimental results are well in agreement with the simulated ones.