复杂薄壁框架件无模铸造工艺研究

Research on Complex Thin-Wall Frame Structure Casting Made by Patternless Technology

以某型号雷达天线底座为例,进行复杂薄壁框架件的数字化无模铸造精密成形工艺研究。采用雨淋式浇注系统,设计了合理的浇注工艺;利用Pro CAST铸造模拟软件对复杂薄壁框架件无模铸造工艺的充型、凝固过程及缩松、缩孔缺陷分布进行模拟分析。结果表明,采用数字化无模铸造精密成形机进行砂型加工试验,浇注所得铸件不存在缺陷,说明该工艺合理可行。

Taking a radar antenna base as an example, the digital without pattern casting precision forming process of complex thin-walled frame parts was studied. A reasonable pouring process was designed by adopting rain pouring system.The mold filling, solidification, shrinkage and porosity distribution of complex thin-walled frame parts were simulated and analyzed by Pro CAST casting simulation software. The results show that there are no casting defects in the castings obtained by pouring, which indicates that the process is reasonable and feasible.