基于CAE的薄壁塑件翘曲变形分析及工艺优化  

Deformation analysis and process optimization of thin-walled plastic parts based on CAE

作　　者：牛吉梅 谢崇智 NIU Jimei;XIE Chongzhi(Guangzhou City University of Technology,Guangzhou 510800,Guangdong,China)

机构地区：[1]广州城市理工学院,广东广州510800

出　　处：《模具技术》2025年第1期71-77,共7页Die and Mould Technology

基　　金：广东省教育厅特色创新项目(自然科学)(编号:2023KTSCX210);广州城市理工学院省一流专业建设项目(编号:52JY214501)。

摘　　要：结合正交试验法和Moldflow仿真模拟试验,以插座底座塑件为研究对象,对其进行了成型工艺参数模拟分析和优化。首先,优化了冷却方式,随后在最优冷却方式基础上,以注塑件的翘曲变形为主要优化目标,采用正交试验法对注塑成型过程中的熔体温度、冷却时间、保压压力、保压时间,以及模具温度等参数进行优化。模拟结果显示:最优的工艺参数为熔体温度220℃,冷却时间35 s,保压压力100%、保压时间12 s、模具温度85℃,最大的翘曲变形量为0.1678 mm,比优化前的翘曲变形量降低了44.97%。综合分析可知影响翘曲变形主要是由收缩不均造成的,这为后续的试验提供了理论基础。Using the combination of orthogonal test method and Moldflow simulation,the multi-molding process parameters of the socket plastic parts was analyzed and optimized as the research object.Firstly,the cooling mode was optimized,and the main optimization target was the warpage deformation of the injection molded parts with the best cooling mode.The parameters of melting temperature,cooling time,holding pressure,holding time and mold temperature in the injection molding process were optimized by orthogonal tests.The optimal parameters was obtained,the simulation results show that the best process parameters are melt temperature 220℃,cooling time 35 s,pressure holding pressure 100%,pressure holding time 12 s,mold temperature 85℃,it is reduced by 44.97% compared with before optimization.The maximum warping deformation is only 0.1678 mm.The main influencing factors of warping deformation are obtained.It is concluded that uneven shrinkage is the main cause of warping deformation.

关 键 词：正交试验 MOLDFLOW 成型工艺 收缩不均 翘曲分析 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]