Compression molding of glass optical components is a high volume near net-shape precision fabrication method. Residual stresses incurred during postmolding cooling are an important quality indicator for these components. In this research, residual stresses frozen inside molded glass lenses under different cooling conditions were investigated using both experimental approach and numerical simulation with a commercial finite element method program. In addition, optical birefringence method was also employed to verify the residual stress distribution in molded glass lenses. Specifically, optical retardations caused by the residual stresses in the glass lenses that were molded with different cooling rates were measured using a plane polariscope. The measured residual stresses of the molded glass lenses were compared with numerical simulation as a validation of the modeling approach. Furthermore, a methodology for optimizing annealing process was proposed using the residual stress simulation results.
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e-mail: yi.71@osu.edu
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October 2008
Research Papers
Numerical Simulation and Experimental Study of Residual Stresses in Compression Molding of Precision Glass Optical Components
Yang Chen,
Yang Chen
Department of Industrial, Welding and Systems Engineering,
The Ohio State University
, 210 Baker Systems Building, 1971 Neil Avenue, Columbus, OH 43210
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Allen Y. Yi,
Allen Y. Yi
Department of Industrial, Welding and Systems Engineering,
e-mail: yi.71@osu.edu
The Ohio State University
, 210 Baker Systems Building, 1971 Neil Avenue, Columbus, OH 43210
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Lijuan Su,
Lijuan Su
Department of Industrial, Welding and Systems Engineering,
The Ohio State University
, 210 Baker Systems Building, 1971 Neil Avenue, Columbus, OH 43210
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Fritz Klocke,
Fritz Klocke
Fraunhofer Institute for Production Technology
, Steinbachstraße 17, 52074 Aachen, Germany
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Guido Pongs
Guido Pongs
Fraunhofer Institute for Production Technology
, Steinbachstraße 17, 52074 Aachen, Germany
Search for other works by this author on:
Yang Chen
Department of Industrial, Welding and Systems Engineering,
The Ohio State University
, 210 Baker Systems Building, 1971 Neil Avenue, Columbus, OH 43210
Allen Y. Yi
Department of Industrial, Welding and Systems Engineering,
The Ohio State University
, 210 Baker Systems Building, 1971 Neil Avenue, Columbus, OH 43210e-mail: yi.71@osu.edu
Lijuan Su
Department of Industrial, Welding and Systems Engineering,
The Ohio State University
, 210 Baker Systems Building, 1971 Neil Avenue, Columbus, OH 43210
Fritz Klocke
Fraunhofer Institute for Production Technology
, Steinbachstraße 17, 52074 Aachen, Germany
Guido Pongs
Fraunhofer Institute for Production Technology
, Steinbachstraße 17, 52074 Aachen, GermanyJ. Manuf. Sci. Eng. Oct 2008, 130(5): 051012 (9 pages)
Published Online: August 29, 2008
Article history
Received:
March 23, 2007
Revised:
November 8, 2007
Published:
August 29, 2008
Citation
Chen, Y., Yi, A. Y., Su, L., Klocke, F., and Pongs, G. (August 29, 2008). "Numerical Simulation and Experimental Study of Residual Stresses in Compression Molding of Precision Glass Optical Components." ASME. J. Manuf. Sci. Eng. October 2008; 130(5): 051012. https://doi.org/10.1115/1.2950062
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