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Vol. 35, No. 8
August, 2018
 
 
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ѱаȸ. 2018  35(1): 95-101     http://doi.org/10.7736/KSPE.2018.35.1.95
Journal of the Korean Society for Precision Engineering
    
 
Thermal Comparison of Conventional and Conformal Cooling Channel Designs for a Non-Constant Thickness Screw Cap
Eric Dimla1, Josep Rull-Trinidad2, Andres Amador Garcia-Granada2, Guillermo Reyes2
1Universiti Teknologi Brunei, 2Universitat Ramón Llull
 
 
Thermal Comparison of Conventional and Conformal Cooling Channel Designs for a Non-Constant Thickness Screw Cap
Eric Dimla1, Josep Rull-Trinidad2, Andres Amador Garcia-Granada2, Guillermo Reyes2
1Universiti Teknologi Brunei, 2Universitat Ramón Llull
 

Complex parts are manufactured with high production rates using plastic injection. Defects in injection moulded parts are typically caused by non-uniform cooling. The design of cooling channels is a key step in the mould tool design process. Laser sintering allows for the direct fabrication at reasonable price, complex 3D tools with integrated cooling channels without the need of fixtures. This technique allows the designer to optimise the position of cooling channels relative to the heat source. This paper presents a simulation study for a non-constant thickness threaded screw cap. Results comparing conventional to conformal cooling channel show that the range between the highest and the lowest part surface temperatures is reduced by 18.8%. On the other hand, there is only a decrease of 3.9% for the maximum temperature in the interior of the threaded screw cap. Conformal cooling using laser sintering in tool manufacturing achieves an improved heat transfer leading to a better part quality.
 
Key words : Conformal cooling design, Additive manufacturing material, Injection moulding, Thermal analysis
߽ɴܾ : 
 
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 
  
 
 
 
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