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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Vydané v:	Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture Ročník 221; číslo 1; s. 25 - 33
Hlavní autori:	Sellier, M, Breitbach, C, Loch, H, Siedow, N
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	London, England SAGE Publications 01.01.2007 Mechanical Engineering Publications SAGE PUBLICATIONS, INC
Predmet:	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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Popis
Shrnutí:	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.
Bibliografia:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Feature-1 ObjectType-Article-2 content type line 23
ISSN:	0954-4054 2041-2975
DOI:	10.1243/09544054JEM606