基于Moldflow的汽车中控台框架翘曲变形分析及优化
Analysis and Optimization of Warping Deformation of Automotive Center Console Frame Based on Moldflow
刘巨保 1黄建军 1杨明 1李峰 2张亮 2查翔1
作者信息
- 1. 东北石油大学机械科学与工程学院, 黑龙江 大庆 163318
- 2. 弘丰塑胶制品(深圳)有限公司, 广东 深圳 518117
- 折叠
摘要
以某汽车中控台框架为研究对象,测量试模样品发现其翘曲变形量超过了装配要求.通过Moldflow软件模拟了该塑件实际的注塑过程,翘曲变形量的模拟值与实测平均值的最大误差为5.98%,发现该塑件翘曲变形的主要因素为冷却不均和收缩不均.本文在原物料中添加质量分数为 25%的玻璃纤维以及优化工艺参数后,翘曲变形量的模拟值与初始方案相比降低了86.22%.试模验证表明,优化后的翘曲变形量模拟值与实测平均值的最大误差为 4.35%,证明了Moldflow软件模拟分析的准确性.试模后各检测点的最大翘曲变形量降到了1.6 mm以下,较优化之前降低了 80%以上,为类似大型复杂注塑件的翘曲变形分析及优化提供了思路.
Abstract
Taking a certain car's central console frame as the research object,it was found that the warping deformation of the sample exceeded the assembly requirements.The actual injection molding process of the plastic part was simulated via Moldflow software.The maximum error between the simulated value and the average measured value of the warping deformation was 5.98%.It was discovered that the main factors leading to the warping deformation of the plastic part were uneven cooling and shrinkage.In this study,glass fibers with a mass fraction of 25%were added to the raw materials,and the process parameters were optimized.The results show that the simulated value of the warping deformation decreases by 86.22%compared to the initial one.Prototype verification indicates that the maximum error between the simulated value and the average measured value of the optimized warping deformation is 4.35%,proving the accuracy of the Moldflow software simulation analysis.After prototyping,the maximum warping deformation of each measurement point is reduced to less than 1.6 mm,which is reduced by more than 80%compared with the initial one,providing insights for the analysis and optimization of warping deformation for similar large and complex injection-molded parts.
关键词
注塑成型/中控台框架/翘曲变形/模流分析/玻璃纤维Key words
Injection Molding/Center Console Frame/Warping Deformation/Mode Flow Analysis/Glass Fiber引用本文复制引用
出版年
2024
NETL
NSTL
万方数据