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数值模拟技术在铝合金压铸件成形过程中的应用
Application on Numerical Simulation Technology in the Forming Processing of Aluminum Alloy Casting by DieCasting
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- DOI:
- 作者:
- 张发云1,叶建雄2
- 作者单位:
- 1.新余高等专科学校太阳能科学与工程系,江西 新余 338000; 2.南昌工程学院机械与动力工程系,江西 南昌 330099
- 关键词:
- 铝合金;压铸;数值模拟;温度场;铸造缺陷
Aluminum alloy; Diecasting; Numerical simulation; Temperature distribution; Casting defects
- 摘要:
- 通过有限元数值模拟软件对铝合金压铸件进行了数值分析,获得了零件成型过程的温度场分布和凝固时间的变化关系。基于模拟结果和新山判据(G/R),得到了压铸件缺陷的预测结果。通过分析上述铝合金压铸件的模拟结果,为后续的生产实践中工艺方案的优化及缺陷分析等提供重要的理论依据。
The numerical simulations of aluminum castings by die casting were car
ried out. The temperature distribution and solidification time in the filling pr
ocess were obtained. Based on the simulated results and the Niyama criterion G/R,
the predicted results on the defects of aluminum alloy diecastings were gaine
d. By analyzing the simulated results of aluminum castings, it will provide an i
mportant theoretical basis for optimizing technological program and defects anal
yzing in the followup productive practice.