“筒壳”铸件半固态压铸过程数值模拟  

Numerical Simulation of Semi-Solid Die Casting of Barrel Shell

作　　者：王广太[1] 

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159

出　　处：《铸造》2013年第3期218-221,共4页Foundry

摘　　要：采用铸造模拟软件ProCAST对腔深、壁薄的A356合金的"筒壳"铸件进行模拟分析。通过对其压铸过程中的温度场进行数值模拟、分析,预测缩孔缩松所在的位置及大小。优化出最佳工艺参数:浇注温度为590℃,压射速度为5 m/s,模具温度为220℃。在此工艺条件下A356半固态浆料充型平稳,温度场分布均匀,无飞溅卷气和浇注不足等缺陷,在实际生产中获得了质量完好的铸件,验证了该工艺参数。The die cast ＂barrel shell＂ casting with deep cavity and thin wall was simulated by casting simulation software ProCAST. By making casting simulation on casting process and temperature field, the location and sizes of shrinkage and dispersed shrinkage were forecasted. The optimized parameters are： pouring temperature 590 ℃, injection speed 5 m/s, mold temperature 220 ℃. Under this process, semi-solid slurry mold filling is stable, temperature field is uniform and there were no casting defects such as splash air entrapments and misnm. The process parameters were proved by obtaining perfect part quality in actual production.

关 键 词：模具温度 浇注温度 压射速度 半固态压铸 

分 类 号：TG249.2[金属学及工艺—铸造]