Information modeling and representation of sheet metal parts with higher order bifurcations

IPD 2008: Proceedings of the 7th Workshop on Integrated Product Development, Magdeburg, Germany, 17.-19.09.2008

Year: 2008
Editor: S. Vajna
Author: Wu, Z.; Rollmann, T.; Anderl, R.


Information models can make a large contribution to the process integration, not only the product development process, but throughout the entire life cycle of a product [1]. The new technique of linear flow splitting developed at the Technische Universit├Ąt Darmstadt, Germany, makes it possible to produce integral sheet metal parts with higher order bifurcations. A new approach for integration in product development and process planning based on an information model is being developed in Collaborative Research Centre (CRC) 666 in Germany [2]. In this paper, we present an information model for modeling and representing design and manufacturing information of integral sheet metal parts with higher order bifurcations. Due to the bifurcated structure, principle solutions of integral sheet metal parts optimized by mathematical algorithms can be mapped in solution trees. Based on the solution tree, linking between conceptual design, detail design and process planning can be defined. Specific views of theses phases are explicit modeled in partial models. Consistence of the partial models and the linking to the boundary representation is made by an integration model. The information model is formalized in Unified Modeling Language (UML). A prototype system based on this information model demonstrates its application in integrated product development and process planning in integral sheet metal design.

Keywords: information model, representation, feature-based, sheet metal, bifurcation, design, process planning


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