An iterative algorithm for optimal mould design in high-precision compression moulding

Abstract The mould design for the manufacturing of high-precision glass parts remains a challenging task. This motivates the present study which proposes an optimization technique to identify the mould design that yields the desired glass piece profile at the end of the compression moulding process...

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Veröffentlicht in:Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture Jg. 221; H. 1; S. 25 - 33
Hauptverfasser: Sellier, M, Breitbach, C, Loch, H, Siedow, N
Format: Journal Article
Sprache:Englisch
Veröffentlicht: London, England SAGE Publications 01.01.2007
Mechanical Engineering Publications
SAGE PUBLICATIONS, INC
Schlagworte:
Accuracy
Algorithms
Applied sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Computer simulation
Deformation
Design
Design optimization
Exact sciences and technology
Feasibility
Finite element method
Forming
Glass
Glasses
Iterative methods
Lenses
Mathematical analysis
Mathematical models
Mechanical engineering. Machine design
Molding (process)
Molds
Molds & molding
Multistage
Optimization techniques
Precision engineering, watch making
Pressure molding
Rheological properties
Rheology
optimal shape design
glass forming
finite element model
compression moulding
Geometrical shape
Optimal algorithm
Rheology
Precision engineering
Multistage process
High precision
Glass
Forming
Iterative method
Mechanical contact
Modeling
Geometrical model
Optimization
Optimal design
Compression molding
Finite element method
Feasibility
Mold
ISSN:0954-4054, 2041-2975
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Zusammenfassung:Abstract The mould design for the manufacturing of high-precision glass parts remains a challenging task. This motivates the present study which proposes an optimization technique to identify the mould design that yields the desired glass piece profile at the end of the compression moulding process with an accuracy of the order of 1 μm. The intuitive, yet very efficient method consists in computing at each optimization loop the mismatch between the deformed and desired glass piece geometries and using this information to update the mould design. The deformed glass piece geometry is computed using the commercial finite element package ABAQUS. This package is well suited to model the multistage forming process, the complex rheology of the glass, and the varying mechanical contact between the parts involved. The feasibility of the method is demonstrated in theory by designing the required mould for a convex-concave lens, where an accuracy of the order of 1 μm is achieved.
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ISSN:0954-4054
2041-2975
DOI:10.1243/09544054JEM606