In Liquid Composite Molding (LCM) processes, the flow pattern of the resin in the mold cavity during mold filling dictates the quality of the composite part. Disturbances such as uncertainty in the fiber preform permeability, variations in the resin viscosity, and racing of the resin along the mold walls may create unexpected and unanticipated flow patterns that could result in dry spots in the preform. Process control with sensor feedback can potentially provide the ability to make fully impregnated parts despite various disturbances by manipulating the flow front movement during resin impregnation through modification of the injection conditions at the gates. Studies have shown that under certain conditions, the flow front shape is not influenced by even large changes in the flow rate or the pressure at the injection gates. This study investigates gate effectiveness in modifying the flow front shape by analyzing the flow dynamics and conducting a parametric study in a simulation environment.
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August 2003
Technical Papers
Gate Effectiveness in Controlling Resin Advance in Liquid Composite Molding Processes
Ali Gokce, Graduate Student,
Ali Gokce, Graduate Student
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716
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Suresh G. Advani, Professor
Suresh G. Advani, Professor
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716
**
Search for other works by this author on:
Ali Gokce, Graduate Student
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716
Suresh G. Advani, Professor
**
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received February 2001; Revised September 2002. Associate Editor: K. Stelson.
J. Manuf. Sci. Eng. Aug 2003, 125(3): 548-555 (8 pages)
Published Online: July 23, 2003
Article history
Received:
February 1, 2001
Revised:
September 1, 2002
Online:
July 23, 2003
Citation
Gokce, A., and Advani, S. G. (July 23, 2003). "Gate Effectiveness in Controlling Resin Advance in Liquid Composite Molding Processes ." ASME. J. Manuf. Sci. Eng. August 2003; 125(3): 548–555. https://doi.org/10.1115/1.1559162
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