基于数值模拟汽车轮眉注塑过程缺陷分析  

Analysis of Defects in Injection Molding Process of Automobile Wheel Eyebrow Based on Numerical Simulation

作　　者：赵焕平[1] 薛党勤[2] 卢松涛[3] ZHAO Huanping;XUE Dangqin;LU Songtao(School of Computer and Software,Nanyang Institute of Technology,Nanyang,Henan 473004,China;School of Intelligent Manufacturing,Nanyang Institute of Technology,Nanyang,Henan 473004,China;College of Mechanical Engineering,Shangqiu Institute of Technology,Shangqiu,Henan 476000,China)

机构地区：[1]南阳理工学院,计算机与软件学院,河南南阳473004 [2]南阳理工学院,智能制造学院,河南南阳473004 [3]商丘工学院,机械工程学院,河南商丘476000

出　　处：《塑料》2022年第4期28-33,共6页Plastics

摘　　要：以汽车轮眉作为研究对象,为解决特殊位置翘曲变形问题,使其满足尺寸和形状要求,基于模流技术分析翘曲变形原因,根据分析结果,对翘曲变形量不满足生产要求的特殊位置,利用响应面法建立翘曲变形量二阶回归模型,以多目标参数进行优化分析。模拟结果表明,翘曲变形的最大值为3.957 mm,所处位置为腹板两端,收缩不均匀是造成该位置不满足生产要求的主要原因;该位置优化后的最大翘曲变形量为3.215 mm,与优化前相比,翘曲变形量降低了18.75%,对应的参数组合为保压压力90 MPa、模具温度60℃、熔料温度250℃和充填时间3.3 s,且充填时间对翘曲变形量的影响最大,熔料温度和模具温度次之,保压压力最小。Taking automobile wheel eyebrows as the research object, the problem of warping deformation in special positions was solved to meet the requirements of size and shape. Based on the mold flow technology, the causes of warping deformation were analyzed. According to the analysis results, the response surface method was used to establish a second-order regression model of warping deformation for special positions where the warping deformation did not meet the production requirements, and the optimization analysis was carried out with multi-objective parameters. The simulation results showed that the maximum warpage deformation was 3.957 mm, which was located at both ends of the web, and uneven shrinkage was the main reason that the position did not meet the production requirements;the maximum warpage deformation of the position was 3.215 mm after optimization, compared with before optimization, the warpage deformation was reduced by 18.75%, the corresponding parameter combinations were holding pressure 90 MPa, mold temperature 60 ℃, melt temperature 250 ℃ and filling time 3.3 s, and the effect of filling time on warpage deformation was the largest, followed by the melt temperature and mold temperature, and the smallest holding pressure.

关 键 词：汽车轮眉 注塑成型 浇注系统设计 响应面法 翘曲变形 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术] TQ320.66[自动化与计算机技术—计算机科学与技术]