摘要
文章仿真模拟了某汽车前端框架的注塑成型过程,并以最大所有效应变形量为目标对工艺参数组合的优化进行探究。针对初始工艺下最大所有效应变形量较大的问题,设计正交试验并进行极差与方差分析。结果表明:注射时间对制件变形量的影响最大,为极显著;模腔表面温度及料桶温度对制件变形量的影响为显著;速度压力切换填充体积百分比对制件变形量的影响为不显著,并得到最优工艺参数组合为A_(2)B_(2)C_(2)D_(3)。优化工艺的模拟仿真结果显示:最大所有效应变形量降低至2.949 mm,优化幅度较大,且达到指标要求。采用优化工艺进行试模,试制样品状态良好、变形量达到要求,验证了优化方案的合理性。
The injection molding process of an automobile front-end frame was simulated,and the optimization of process parameter combination was explored with the goal of maximizing all effects deformation.Aiming at the problem of large deformation of the maximum all effects under the initial process,the orthogonal test was designed and the range and variance analysis were carried out.The results show that the injection time has the greatest influence on the deformation of the part,which is extremely significant.The influence of the surface temperature of the die cavity and the barrel temperature on the deformation of the part is significant.The influence of the filling volume percentage of the speed pressure switching on the deformation of the part is not significant,and the optimal process parameter combination is A_(2)B_(2)C_(2)D_(3).The simulation results of the optimized process show that the maximum deformation of all effects is reduced to 2.949 mm,and the optimization range is large and meets the index requirements.The optimized process is used to test the mold.The trial sample is in good condition and the deformation amount meets the requirements,which verifies the rationality of the optimization scheme.
作者
冯顺利
FENG Shun-i(Department of Automobile,Henan College of Transportation,Zhengzhou 450005,China)
出处
《塑料科技》
CAS
北大核心
2023年第11期94-98,共5页
Plastics Science and Technology
关键词
汽车前端框架
长玻纤增强聚丙烯
注塑成型
正交试验
参数优化
Automotive front end frame
Long glass fiber reinforced polypropylene
Injection molding
Orthogonal test
Process parameters optimization
