真空压铸汽车铝合金后纵梁排溢系统的模拟优化  

Simulation and Optimization of Overflow System of Vacuum Die Casting Automobile Rear Longitudinal Beam Based on AnyCasting Software

作　　者：陈建伟 周志明[1,2] 桑卓越 涂坚 黄灿 解洪权[3] 杨会 黄渝 Chen Jianwei;Zhou Zhiming;Sang Zhuoyue;Tu Jian;Huang Can;Xie Hongquan;Yang Hui;Huang Yu(School of Materials Science and Engineering,Chongqing Univerisity of Technology;Chongqing Mingliyun Lightweighet Research Institute Co.,Ltd.;Chongqing Yuiiang Die Casting Co.,Ltd.)

机构地区：[1]重庆理工大学材料科学与工程学院,重庆400054 [2]重庆明理云轻量化技术研究院有限公司 [3]重庆渝江压铸有限公司

出　　处：《特种铸造及有色合金》2022年第11期1355-1359,共5页Special Casting & Nonferrous Alloys

基　　金：重庆市技术创新与应用产业类重点资助项目(cstc2019jscx-fxydX0072);重庆市人才计划资助项目(2020RC22);重庆市巴南区科技计划资助项目(2021TJZ013)。

摘　　要：汽车铝合金后纵梁因其复杂的结构,在实际生产中经常在关键位置产生气孔、缩松、缩孔等缺陷。基于AnyCasting软件研究了铝合金后纵梁真空压铸的充型及凝固过程。结果表明,金属液充型过程中在后纵梁的受载荷位置产生了严重的卷气,金属液凝固过程中在后纵梁局部壁厚位置产生缩松、缩孔等缺陷。基于模拟分析的结果,对排溢系统的结构进行优化设计,通过在卷气严重的位置增设多个溢流槽,消除了后纵梁受载荷端的铸造缺陷,实现了后纵梁的一体化成形。Due to its complex structure, air holes and other defects often occur at key positions in the actual production of automobile aluminum alloy rear longitudinal beam. The mold filling and solidification process of vacuum die casting aluminum alloy rear longitudinal beam was investigated based on the AnyCasting simulation software. The results indicate that serious air entrainment occurs at the loaded position of rear longitudinal beam during liquid metal filling. During the solidification of liquid metal, shrinkage porosity and other defects occur at the local wall thickness of the rear longitudinal beam. Based on the results of simulation analysis, the structure of the overflow system was optimized. By adding multiple overflow grooves at the position with serious gas volume, the casting defects at the loaded end of the rear longitudinal beam can be eliminated, and the integrated forming of the rear longitudinal beam can be realized.

关 键 词：真空压铸 后纵梁 ANYCASTING 排溢系统 

分 类 号：TG249.2[金属学及工艺—铸造] TP311[自动化与计算机技术—计算机软件与理论] TG146.21[自动化与计算机技术—计算机科学与技术]