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Product-Process Integrated Meta-Modeling Using a Graph-Based Approach: Application to Additive Manufacturing

Research output: Book/ReportDoctoral thesisCollection of Articles

Details

Original languageEnglish
PublisherTampere University
Number of pages154
ISBN (Electronic)978-952-03-1011-0
ISBN (Print)978-952-03-1010-3
Publication statusPublished - 27 Mar 2019
Publication typeG5 Doctoral dissertation (article)

Publication series

NameTampere University Dissertations
Volume36
ISSN (Print)2489-9860
ISSN (Electronic)2490-0028

Abstract

Additive manufacturing (AM) has created a paradigm shift in product design and manufacturing sector due to its unique capabilities. However, the integration of AM technologies in mainstream production faces the challenge of ensuring reliable production and repeatable quality of parts. Toward this end, modeling and simulation play a significant role to enhance the understanding of the complex multiphysics nature of AM processes. In addition, a central issue in modeling AM technologies is the integration of different models and concurrent consideration of the AM process and the part to be manufactured. Hence, the ultimate goal of this research is to present and apply a modeling approach to develop integrated modeling in AM. Accordingly, the thesis oversees the product development process and presents the Dimensional Analysis Conceptual Modeling (DACM) framework to model the product and manufacturing processes at the design stages of the product development process. The framework aims at providing simulation capabilities and systematic search for weaknesses and contradictions to the models for the early evaluation of solution variants. The developed methodology is applied in multiple case studies to present models integrating AM processes and the parts to be manufactured. This thesis results show that the proposed modeling framework is not only able to model the product and manufacturing process but also provide the capability to concurrently model product and manufacturing process, and also integrate existing theoretical and experimental models. The DACM framework contributes to the design for additive manufacturing and helps the designer to anticipate limitations of the AM process and part design earlier in the design stage. In particular, it enables the designer to make informed decisions on potential design alterations and AM machine redesign, and optimized part design or process parameter settings. DACM framework shows potentials to be used as a metamodeling approach for additive manufacturing.

Keywords

  • Additive Manufacturing, Design for Additive Manufacturing, Integrated Modeling, Product Development, Dimensional Analysis, Conceptual Modeling Framework

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