Numerical simulation and experimentation of water-assistedco-injectionmolding of a non-circular tube

T. Q. Kuang, C. C. Yu, Y. Deng, K. Zhou, L. S. Turng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Water-assisted co-injection molding (WACIM) is a complex, innovative injection molding process. A threedimensional model for WACIM was setup and a k-ω turbulence model was adopted to deal with the turbulent flow of the water. A free interface of the skin-inner melt and the inner melt-water were tracked by the volume of fluid (VOF) method. Numerical simulations for the filling stage of WACIM parts with four types of cross-sections were carried out using the computational fluid dynamics (CFD) method. Experiments were conducted to verify the simulation results. The results of the experiments were in agreement with those of the simulations. The shape of the cavity cross-section had an obvious effect on the penetration section of the inner melt, while the shape of the water penetration ended up being round. The penetration area of the water increased in the flow direction, and the residual thicknesses of the inner melt downstream was thinner than the melt upstream.

Original languageEnglish
Title of host publicationANTEC 2015 - Proceedings of the Annual Technical Conference and Exhibition of the Society of Plastics Engineers
PublisherSociety of Plastics Engineers
Pages1770-1774
Number of pages5
ISBN (Electronic)9780985011277
StatePublished - 2015
Externally publishedYes
Event73rd Annual Technical Conference and Exhibition of the Society of Plastics Engineers, SPE ANTEC Orlando 2015 - Orlando, United States
Duration: 23 03 201525 03 2015

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings

Conference

Conference73rd Annual Technical Conference and Exhibition of the Society of Plastics Engineers, SPE ANTEC Orlando 2015
Country/TerritoryUnited States
CityOrlando
Period23/03/1525/03/15

Keywords

  • Experimentation
  • Non-circular tube
  • Numerical simulation
  • Water-assisted co-injection molding

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