注射压缩成型的CAE三维模拟分析

CAE 3D Simulation Analysis in Injection Compression Molding

以透明的楔形导光板为分析实例,采用真实三维CAE模流分析技术对注射压缩成型过程进行了模拟,直观预测了楔形导光板的充填压力分布、残余应力分布、熔体流动前沿处的温度分布以及缩痕分布等结果,并与传统注射成型的分析结果进行了详细的比较和分析。结果表明:与传统注射成型相比,注射压缩成型在加工过程中压力较低且分布较为均匀、残余应力更低、温度分布更加均匀,而缩痕分布则相差不大,因此更有可能成型出更好品质的透明制品,为实际的注射压缩成型模具设计及工艺参数设置提供了可靠的参考依据。

With the transparent wedge light guide plate as an example, process of injection compression molding was simulated by using true 3D CAE technology, filling pressure distribution, residual stress distribution, temperature at flow front distribution and sink index distribution of WLGP were predicted intuitively, detailed comparison and analysis of results were compared with those of conventional injection molding. The results showed that the ICM provided lower and uniform pressure, lower residual stress and uniform temperature than CIM ,which meant a better quality from ICM application was performed more possible than CIM,reliable reference basis were provided for the actual ICM mold design and process parameter settings.