基于响应面法和正交试验的墨顶盖翘曲变形优化

Optimization of W arpage Deformation of Ink Cap Based on Response Surface Method and Orthogonal Experiment

以墨顶盖作为分析对象,通过调整熔体温度、注射时间和模具温度等工艺参数,优化翘曲变形量。基于正交法进行试验方案设计,获得了对翘曲变形具有显著影响的因素,并采用响应面法交互作用因素验证了正交试验的正确性。试验模拟结果表明,墨顶盖翘曲变形量最小的工艺参数为:熔体温度250℃、模具温度70℃、注射时间0.08 s。与优化前相比,墨顶盖翘曲变形量下降了19%,并且,熔体温度和注射时间均对翘曲变形有显著影响。为验证其试验效果,采用响应面数学模型,分析了熔体温度、注射时间和模具温度,以上3个影响参数之间的交互作用,验证了正交试验优化结果的正确性,表明优化设计方法是能够降低塑件翘曲变形的一种有效手段。

The research based on the ink cap as the analysis object,optimized the amount of warpage by adjusting the process parameters such as melt temperature,injection time and mold temperature.And the experimental scheme was designed based on the orthogonal method to obtain the factors that had significant influence on the warpage deformation.The results showed that the process parameters of the minimum deformation of the ink cap were melt temperature 250 ℃,mold temperature 70 ℃,injection time 0.08 s,which was 19% lower than before optimization.And the melt temperature and injection time were the most significant parameters that caused warpage.In order to verify the experimental results,the response surface mathematical model was used and the interaction between the three influencing parameters of melt temperature,injection time and mold temperature was analyzed,and the orthogonal test optimization results were verified to be correct.The optimized design method was an effective means to reduce the warpage of the plastic parts.