A scaffolding architecture for conformal cooling design in rapid plastic injection moulding |
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Authors: | K M Au K M Yu |
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Affiliation: | (1) Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, People’s Republic of China |
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Abstract: | Cooling design of plastic injection mould is important because it not only affects part quality but also the injection moulding
cycle time. Traditional injection mould cooling layout is based on a conventional machining process. As the conventional drilling
method limits the geometric complexity of the cooling layout, the mobility of cooling fluid within the injection mould is
confined. Advanced rapid tooling technologies based on solid freeform fabrications have been exploited to provide a time-effective
solution for low-volume production. In addition, research has made attempts to incorporate conformal cooling channel in different
rapid tooling technologies. However, the cooling performance does not meet the mould engineer’s expectations. This paper proposes
a novel scaffold cooling for the design of a more conformal and hence more uniform cooling channel. CAD model for constructing
the scaffolding structure is examined and cooling performances are validated by computer-aided engineering (CAE) and computer
fluid dynamics (CFD) analysis.
An erratum to this article can be found at |
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Keywords: | Conformal cooling Scaffolding Rapid tooling Plastic injection moulding |
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