The assembly of the multi-components of injection parts is commonly encountered. However, there is little information about the degree of assembly for injected multiple components. In this study, we have tried to investigate the degree of assembly using a multi-cavity mold system with two different components. The study methods include numerical simulation and experimental observation. Firstly, we have tried to define the characteristic length for further to understand the degree of assembly. Then, we have adopted packing pressure as the practical operation parameter to observe the variation of degree of assembly. Results showed that when a higher packing pressure applied in injection molding, it will increase the difficulty of assembling Part A and B by simulation. Furthermore, the experimental validation on the degree of assembly based on the characteristic lengths has also performed. Both simulation and experimental results have similar trends. However, there is some gap between simulation prediction and experimental measurement for the same operation condition setting. To reduce that gap, future work is planned.
Polymer Engineering and Science International 2021，PESI-2021 Proceedings