镁合金轮毂中心浇注式挤压铸造工艺优化
Optimization of Center Pouring Squeeze Casting Process for Magnesium alloy Wheels
曾聪，龙思远，郭云春，刘榆
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作者单位：重庆大学 材料科学与工程学院
中文关键字：镁合金轮毂；挤压铸造；数值模拟；工艺优化
英文关键字：magnesium alloy wheels; squeeze casting; numerical simulation; process optimization
中文摘要：以镁合金汽车轮毂为例，建立铸件三维模型，设计铸造工艺方案，运用CAE技术预测铸造缺陷，改进了铸造工艺。结果表明：对于镁合金轮毂中心浇注式挤压铸造工艺，应将螺栓孔填平，并尽量采用大尺寸浇口充型，以实现平缓顺序充型和顺序凝固，保证得到高品质的镁合金轮毂。
英文摘要：Taking magnesium alloy automobile wheels as an example, using CAE technology to predict casting defects and optimize the casting process. This study includes 3D-model establishment and casting process design. The results indicate that: for the center pouring squeeze casting process of magnesium alloy wheels, in order to achieve the smooth sequence mold filling and sequence solidification, then guarantee high-quality magnesium alloy wheels, the bolt hole should be filled and use large gate mold filling as far as possible.