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Computer-integrated manufacturing system for tube bending

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Abstract

This paper presents a distributed and integrated manufacturing system for tube bending. It can support a Client/Server based local network and serial communications. It can also integrate tube design, process planning, virtual and physical manufacturing around the core of engineering databases with different formats. This system solves three problems in integrated tube design and bending: (1) automatic process planning, (2) estimation of the feasibility of bending and (3) the impact of springback and extension. The industrial applications of this system show that it can decrease the cost of bending and increase the bending efficiency.

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... Chang, Rai, and Terpenny (2010) adopt the concept of Ontologies in DFM to structure the design knowledge and manufacturing guidelines for developing the decision support system in this domain. In the development of Computer Integrated Manufacturing System, the DFM methods have been used for incorporating the design, bending feasibility analysis, process planning, manufacturing, and automatic inspection in tube bending (Ding et al. 2012). To resolve the conflict among product functionality and environmental impact at conceptual design phase, the DFM is further extended to Design for Environment (DfE). ...
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This article presents the results of a research project on Design for Manufacturing (DFM) (Vliet 2001), carried out at Delft University of Technology from 1997 until 2001. The aim of the project was to enable effective application of the DFM concept during the entire design process, in order to help reduce design and manufacturing lead times and costs. A DFM methodology has been developed that can be used to support the designer to apply DFM. The methodology is based on the approaches of design coordination and continuous design evaluation. Both approaches have been implemented to provide an active form of design support during the entire design process. The methodology supports the principles of systematic design. To enable the designer to apply these principles effectively, two new design tools have been developed for, respectively, the product design specification stage and the conceptual design stage. In order to be able to verify the DFM methodology, it has been implemented. The prototype computer-guided DFM system has been evaluated by experienced designers of various companies of the Dutch metalworking industry. The conclusion is that the proposed method of active design support is a suitable one, and that the DFM methodology enables effective application of the DFM concept.
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