Investigation on the transferability of algorithms for the numerical optimization of cooling channel design in injection molding on metal gravity die casting

Cycle time of a part in injection molding process is very important as the rate of production and the quality of the parts produced depend on it, whereas the cycle time of a part can be reduced by reducing the cooling time which can only be achieved by the uniform temperature distribution in the molded part which helps in quick dissipation of heat. Conformal cooling channel design is the solution to the problem which basically “conforms” to the shape of cavity in the molds. This paper describes the analytical study of cooling analysis of different types of cooling channel designs. The best cooling channel design is also selected on the basis of minimum time to reach ejection temperature, uniform temperature distribution, and minimum warpage of part. “Creo Elements/Pro 5.0” is used to model the case study, its molds, and the cooling circuit whereas analytical study is done using “Autodesk Moldflow Advisor 2013 (AMFA).”

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Complete Muon Collider Cooling Channel Design & Simulations

10.2172/1464452 ◽

2012 ◽

Cited By ~ 1

Author(s):

Cary Yoshikawa

Keyword(s):

Cooling Channel ◽

Channel Design ◽

Muon Collider

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Improving Cooling Performance of Injection Molding Tool with Conformal Cooling Channel by Adding Hybrid Fillers

Polymers ◽

10.3390/polym13081224 ◽

2021 ◽

Vol 13 (8) ◽

pp. 1224

Author(s):

Chil-Chyuan Kuo ◽

Wei-Hua Chen

Keyword(s):

Thermal Conductivity ◽

Injection Molding ◽

Cooling Time ◽

Performance Ratio ◽

Cooling Efficiency ◽

Cooling Channel ◽

Conformal Cooling Channel ◽

Conformal Cooling ◽

Fused Deposition ◽

Silicone Rubber Mold

Silicone rubber mold (SRM) is capable of reducing the cost and time in a new product development phase and has many applications for the pilot runs. Unfortunately, the SRM after injection molding has a poor cooling efficiency due to its low thermal conductivity. To improve the cooling efficiency, the thermal conductivity of the SRM was improved by adding fillers into the SRM. An optimal recipe for fabricating a high cooling efficiency low-pressure injection mold with conformal cooling channel fabricated by fused deposition modeling technology was proposed and implemented. This study proposes a recipe combining 52.6 wt.% aluminum powder, 5.3 wt.% graphite powder, and 42.1 wt.% liquid silicon rubber can be used to make SRM with excellent cooling efficiency. The price–performance ratio of this SRM made by the proposed recipe is around 55. The thermal conductivity of the SRM made by the proposed recipe can be increased by up to 77.6% compared with convention SRM. In addition, the actual cooling time of the injection molded product can be shortened up to 69.1% compared with the conventional SRM. The actual cooling time obtained by the experiment is in good agreement with the simulation results with the relative error rate about 20%.

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