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Design, optimization, and manufacturing of a multiple‐thickness profile extrusion die with a cross flow
Author(s) -
Rezaei Shahreza A.,
Behravesh A.H.,
Bakhshi Jooybari M.,
Soury E.
Publication year - 2010
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21770
Subject(s) - die (integrated circuit) , extrusion , materials science , flow (mathematics) , plastics extrusion , scope (computer science) , mechanical engineering , cross section (physics) , computer simulation , material flow , process (computing) , engineering drawing , composite material , mechanics , computer science , engineering , nanotechnology , physics , quantum mechanics , biology , programming language , operating system , ecology
This article presents a procedure to achieve a uniform outlet flow of molten polymer for a complex die profile with various thicknesses in die outlet cross section. According to a specific optimization methodology, the die was optimized based on varying die land length. The scope of this article includes: 3D flow simulation, optimization of the die velocity outputs based on the results of simulation process, and comparison of numerical predictions with the experimental data. Finally a significant result obtained by this work indicates higher ratio of the land length to the height of the zone with cross flow rather than the zones that are directly fed by the extruder. POLYM. ENG. SCI., 2010. © 2010 Society of Plastics Engineers.