Thermal comparison of conventional and conformal cooling channel designs for a non-constant thickness screw cap

Dimla, E, Rull-Trinidad, J, Garcia-Granada, A and Reyes, G 2018, 'Thermal comparison of conventional and conformal cooling channel designs for a non-constant thickness screw cap', Journal of the Korean Society for Precision Engineering, vol. 35, no. 1, pp. 95-101.


Document type: Journal Article
Collection: Journal Articles

Title Thermal comparison of conventional and conformal cooling channel designs for a non-constant thickness screw cap
Author(s) Dimla, E
Rull-Trinidad, J
Garcia-Granada, A
Reyes, G
Year 2018
Journal name Journal of the Korean Society for Precision Engineering
Volume number 35
Issue number 1
Start page 95
End page 101
Total pages 7
Publisher Korean Society for Precision Engineering
Abstract 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.
Subject Manufacturing Processes and Technologies (excl. Textiles)
Keyword(s) Additive manufacturing material
Conformal cooling design
Injection moulding
Thermal analysis
DOI - identifier 10.7736/KSPE.2018.35.1.95
Copyright notice Copyright © The Korean Society for Precision Engineering. 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).
ISSN 2234-7593
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Created: Thu, 06 Dec 2018, 10:39:00 EST by Catalyst Administrator
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