Premium
Model‐based melt flow virtual sensors for filling process of injection molding
Author(s) -
Lin YuWei,
Cheng J.W. John
Publication year - 2008
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.20960
Subject(s) - nozzle , materials science , molding (decorative) , injection molding machine , mechanical engineering , process (computing) , flow (mathematics) , position (finance) , melt flow index , mold , engineering drawing , computer science , composite material , engineering , mechanics , polymer , physics , finance , copolymer , economics , operating system
Based on the model‐based virtual sensing approach, previously proposed by the authors, two melt flow virtual sensors are developed. The virtual sensors estimate the melt front position during the filling process by using easily obtained machine variables, specifically, the injection hydraulic pressure and the screw position and nozzle pressure. Both virtual sensors were theoretically analyzed and experimentally evaluated on a commercial injection molding machine. The theoretical analysis provides step‐by‐step design guidelines for the virtual sensors. Performance evaluation with a twin thin‐plate mold validates the feasibility of the proposed model‐based melt‐flow virtual sensors. POLYM. ENG. SCI., 2008. © 2008 Society of Plastics Engineers