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Dynamic characteristics of plug‐assist thermoforming process
Author(s) -
Hosseini H.,
Berdyshev B.V.,
MehrabaniZeinabad A.
Publication year - 2009
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.21245
Subject(s) - thermoforming , spark plug , materials science , viscoelasticity , rheology , mechanical engineering , work (physics) , process (computing) , mechanics , nonlinear system , composite material , computer science , engineering , physics , quantum mechanics , operating system
Plug‐assist thermoforming is a well‐known technique in polymer processing because of its interesting features. The dynamic value of driving‐force for the stretching process is determined based on equilibrium equation. This amount of force is required for applying to a plug to stretch a sheet. It is used for calculation of the required theoretical work and power of a plug‐assist thermoforming process. By using a nonlinear viscoelastic rheological model in the proposed mathematical model, its validity was examined by performing experimental tests on ABS sheets. POLYM. ENG. SCI., 2009. © 2008 Society of Plastics Engineers