铝合金支架压铸充型凝固数值模拟与工艺研究  

Design and Optimization of the Bracket Body Die-Casting Process Based on the Numerical Simulation

作　　者：牛阔 黄勇[1] 孟昭昕[1] 张显飞[1] 许明海[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：《中国材料科技与设备》2015年第6期11-13,23,共4页Chinese Materials Science Technology & Equipment

摘　　要：根据支架压铸件结构特点，设计了支架压铸模结构和压铸工艺参数。用ProCAST数值模拟软件进行了支架充型凝固过程数值模拟，利用模拟结果设计了浇注系统，确定了合理的压铸工艺参数：浇注温度600℃，模具预热温度210℃，压射速度2m／s。通过生产出的模具进行压铸生产实验，得到了合格的铝合金支架压铸件，验证了模拟结果可以应用于实际生产中。Using the ProCAST software, analysis the die-cast process of the aluminum bracket body with the computer simulation and forecast the casting temperature and shrinkage defects distribution when the pouring temperature is 600℃, mold preheating temperature of 210℃ and the injection speed of 2m/s. According to the preliminary simulation results, cast- ing gating system and overflow drain system are optimized to eliminate the shrinkage defects. Process scheme is verified by ex- periments, access to qualified castings.

关 键 词：铝合金 支架 数值模拟 工艺研究 

分 类 号：TG249.2[金属学及工艺—铸造]