Optimised design of a cooling channel for injection moulding using Computational Fluid Dynamics and Finite Element Analysis simulation techniques

摘要

Injection moulding is one of the favored manufacturing processes in the modern world where most products are made from plastics. Injection moulding requires several heat transfers from injection, filling and cooling. The mould will be subjected to high and low temperatures over several hundred cycles. The mould material needs to be considered resistant to both high and low temperatures against the fatigue cycle. The cooling channel is the most important part to ensure the life cycle of the mould. By using Computational Fluid Dynamics (CFD) to simulate the plastic flow injection on the mould, the heat flux of the mould can be detected This will be the first basis from which to analyse the optimum cooling channel to ensure the heat flux will be reduced as soon as the material reaches the thermal coefficient. Finite Element Analysis (FEA) simulation will be used to determine the fatigue cycle on the mould based on the CFD result. The result of the mould will be optimized to reduce the heat and prolong the fatigue life of the mould.