Numerical optimization of process parameters in plastic injection molding for minimizing weldlines and clamping force using conformal cooling channel

2018 ◽  
Vol 32 ◽  
pp. 782-790 ◽  
Author(s):  
Satoshi Kitayama ◽  
Kanako Tamada ◽  
Masahiro Takano ◽  
Shuji Aiba
Keyword(s):  
Injection Molding ◽  
Process Parameters ◽  
Numerical Optimization ◽  
Plastic Injection Molding ◽  
Clamping Force ◽  
Cooling Channel ◽  
Conformal Cooling Channel ◽  
Conformal Cooling ◽  
Optimization Of Process Parameters ◽  
Plastic Injection

Optimization of Process Parameters using DOE, RSM, and GA in Plastic Injection Molding

2012 ◽  
Vol 472-475 ◽  
pp. 1220-1223 ◽  
Author(s):  
Wen Chin Chen ◽  
Denni Kurniawan ◽  
Gong Loung Fu
Keyword(s):  
Injection Molding ◽  
Process Parameters ◽  
Industrial Applications ◽  
Plastic Injection Molding ◽  
Quality Characteristic ◽  
Optimal Process ◽  
Screening Experiments ◽  
Optimization Of Process Parameters ◽  
Initial Settings ◽  
Plastic Injection

In the past, plastic injection molding (PIM) product quality was usually measured by one single quality characteristic or by multiple quality characteristic with independent parameters one another. In this study, optimization of process parameters using design of experiment (DOE), response surface methodology (RSM), and genetic algorithm (GA) were proposed to generate the optimal process parameters settings of multiple-quality characteristics. In the first stage, significant PIM process parameters can be determined by DOE screening experiments. Then the optimal process parameter settings are obtained via computer aided engineering (CAE) simulation integrated with RSM and GA, which are taken as practically initial settings of process-related parameters. The experimental results show that the propose optimization model is very successful and can be used in industrial applications.

scholarly journals Numerical study of effect of cooling channel configuration and size on the product cooling effectiveness in the plastic injection molding

2018 ◽  
Vol 197 ◽  
pp. 08019
Author(s):  
Angger Bagus Prasetiyo ◽  
Fauzun Fauzun
Keyword(s):  
Injection Molding ◽  
Numerical Study ◽  
Plastic Injection Molding ◽  
Cooling Channel ◽  
Cooling Effectiveness ◽  
Conformal Cooling ◽  
Cooling Channels ◽  
Conformal Cooling Channels ◽  
Channel Configuration ◽  
Plastic Injection

Injection molding is most frequently used manufacturing processes in the plastics industry. In the plastic injection molding process the cooling channel has an important role for the cooling process of the product. The good cooling channel is indicated by the ability to absorb heat from the product quickly and uniformly on the each side of the product. This study compared straight and conformal cooling channels with diameters 8 mm to know it is effects on pattern of temperature distribution in the mold and cooling effectiveness of the product inside mold using Fluent software. Analysis of virtual model images shown that those with conformal cooling channels can predict significant heat absorption compared with straight cooling channel.

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

Polymers ◽  
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%.

Sign in / Sign up

Export Citation Format

Share Document