Optimum cooling system design of a free-form injection mold using an abductive network

Design and simulation-based optimization of cooling channels for plastic injection mold

“…To simplify the mathematical model, some of the assumptions are applied (Park & Kwon, 1998;Lin, 2002). The objective of mold cooling analysis is to find the temperature distribution in the molded part and mold cavity surface during cooling stage.…”

“…When the molding process reaches the steady-state after several cycles, the average temperature of the mold is constant even though the true temperature fluctuates periodically during the molding process because of the cyclic interaction between the hot plastic and the cold mold. For the convenience and efficiency in computation, cycle-averaged temperature approach is used for mold region and transition analysis is applied to the molded part (Park & Kwon, 1998;Lin, 2002;Rännar, 2008).…”

“…The first group focuses on how to optimize the configuration of the cooling system in terms of shape, size, and location of cooling lines (Tang et al, 1997;Park & Kwon, 1998;Lin, 2002;Rao et al, 2002;Lam et al, 2004;Qiao, 2005;Li et al, 2009;Zhou et al, 2009;Hassan et al, 2010). These studies used some of methods from semi-analytical method to finite difference, boundary element method (BEM), and finite element method (FEM).…”

“…In addition, cooling design is often based on designer's experience and intuition. When molding geometry becomes more complex, experience-based and trial-and-error approaches would be timeconsuming and less feasible (Tang et al, 1997;Lin, 2002;Lam et al, 2004;Qiao, 2006).…”

Effect of cooling system on the polymer temperature and solidification during injection molding

“…As the material cools down, the solid skin begins to grow with increasing time as the cooling continues until the entire material solidifies. Over the years, many studies on the problem of the optimization of the cooling system layout in injection molding and phase change of molding process have been made by various researchers and ones which focused intensity on these topics and will used in our system design and validations are [3][4][5][6]. The main purpose of this paper is to study the effect of the cooling channels position and its cross section shape on the temperature distribution of the mold and polymer, therefore, their effect on the solidification degree of that polymer.…”