Thermoforming triangular troughs

Thermoforming triangular troughs

This analysis for thermoforming triangular troughs focuses on the manufacturing process speed and follows the method of Kershner and Giacomin for thermoforming cones. We distinguish between what happens before and after (free versus constrained forming) the melt touches the prismatic mold. Neither f...

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Bibliographic Details
Published in:Polymer engineering and science Vol. 49; no. 1; pp. 189 - 199
Main Authors: Lieg, Katie Lynn, Giacomin, A. Jeffrey
Format: Journal Article
Language:English
Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01-01-2009
Wiley
Society of Plastics Engineers, Inc
Blackwell Publishing Ltd
Subjects:
Applied sciences
Containers
Exact sciences and technology
Heat conductivity
Integrated circuit fabrication
Machinery and processing
Methods
Miscellaneous
Molds & molding
Moulding
Plastics
Polymer industry, paints, wood
Polymers
Technology of polymers
Thermoforming
United States
Rheological model
Cone
Molten state
Thermoforming
Theoretical study
Triangular shape
Polymer
Newtonian fluid
Modeling
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Summary:This analysis for thermoforming triangular troughs focuses on the manufacturing process speed and follows the method of Kershner and Giacomin for thermoforming cones. We distinguish between what happens before and after (free versus constrained forming) the melt touches the prismatic mold. Neither free nor constrained forming yields analytical solutions for the required forming time. Our analysis is restricted to the fabrication of triangular troughs from nearly Newtonian melts, the second simplest relevant problem in commercial thermoforming. The simplest relevant problem, thermoforming cones, yielded analytical solutions for the forming time. Whenever we thermoform straight edges into rigid packaging, the problem of a melt stretching into a triangular trough arises. POLYM. ENG. SCI., 2009. © 2008 Society of Plastics Engineers
Bibliography:istex:EA84921F1F0BEFD82B3B2996E2B2DCA7558EC0F0
ArticleID:PEN21239
Wisconsin and Placon Corporation of Madison, Wisconsin
Plastic Ingenuity, Inc., Cross Plains
ark:/67375/WNG-VBM2Z5GL-X
This work partially constitutes the Masters of Science Thesis of Katie Lynn Lieg at the University of Wisconsin-Madison, in the Mechanical Engineering Department. Parts of this research were presented at ANTEC 2008 and the Society of Rheology Annual Meeting in 2007.
This work partially constitutes the Masters of Science Thesis of Katie Lynn Lieg at the University of Wisconsin–Madison, in the Mechanical Engineering Department. Parts of this research were presented at ANTEC 2008 and the Society of Rheology Annual Meeting in 2007.
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0032-3888
1548-2634
DOI:10.1002/pen.21239