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This paper describes the use of runtime data in two scenarios: to support the production, and to feed back resource operation knowledge to manufacturing system development. Challenges are discussed and some approaches are suggested. Raw data need to be synthesized into knowledge and analyzed within its specific context. A common ontology with shared concepts is needed for the whole manufacturing system life cycle. References need to be established between models from different contexts for increased accessibility.

Moulds are complex devices and their quotation is one of the most risky tasks in mould industry. In this paper a digital work environment based on a computer assisted mould quotation tool is proposed in which all the relevant information is quickly available to assist a robust and rapid quotation. The tool involves a new way to directly access past quotations, designs and even manufacturing data based on the similarity of mould geometry and mould attributes. It applies new 2D/3D design concepts where sketches and text attributes are used to search for and access similar moulds. The main results from the analysis of mould quotation procedures and a preliminary tool prototype are presented.

For their studio projects while learning DET, undergraduate and graduate students modelled the St. Louis Arch using the exact mathematical relationships of Eero Saarinen. They used that digital model to do finite element stress analyses for stresses, deflections, and vibrations. They investigated the challenging construction methodology used in building the Arch. They confirmed Saarinen’s uniform stress assumptions using computing power that he never dreamed of. They checked out what was needed in the way of hydraulic force and piston travel to expand the two legs for “keystone” placement. They conceived and analyzed different tool-path strategies for the possible three- and five-axis cutting of exact physical models of that arch geometry. Most recently, using DELMIA to electronically model not only the tool path but also the machine tool operation and plant layout itself, precise 1/1000-sized models of the Arch are being cut and cast in aluminium and other materials. This paper is a follow-up of the paper submitted at the 2004 DET in Seattle entitled “CATIA Studies of the St. Louis Arch by OIT Students.” As a final step, the studies are focused on a physical model to be produced with the assistance of Freightliner LLC - a DaimlerChrysler Company, and the Precision Castparts Corporation. The long-term institutional objective for the overall project was not just to have courses in DET but also to position DET centrally within the undergraduate and graduate manufacturing and mechanical curricula, and finally to use it to its full power and functionality.

Designing a new product in an industrial context supposes to be certain to be able to produce it according to a level of quality and controlled cost. To achieve this goal, it is necessary to simultaneously design the product and the process of production and to be able to simulate the envisaged process in order to predict the productivity and the quality that can be obtained. The proposed method is based on the generation of a virtual model of the manufactured parts (model MMP). The deviations of the manufactured surfaces of the MMP are expressed compared to the nominal part. These deviations are collected by simulation of the suggested manufacturing process. The range of variation of these deviations represents the 3d capabilities of the manufacturing means.

This article will investigate the suitability of the Unified Modelling Language (UML) for requirements analysis of autonomous logistic processes by a logistics domain expert. Such a model is the basis for subsequent implementation of the system consisting of software engineering and hardware configuration. Relevant parts of UML will be used to model an exemplary scenario which will form the basis to derive benefits and drawbacks of using the UML in this context. Suggestions on how the identified gaps can be filled will be presented in the paper.

The offer of the best machine tool configuration for specific customer’s needs is a decisive factor to compete in the machine tool sector. Normally the offer is defined by the manufacturer mostly on the basis of his own experience and requires a considerable effort in terms of time and money while it leads to actual selling in a small percentage of the cases. Also, the knowledge related to the activity of offer preparation is not well formalized and this puts the company in a weak position in the case of retirements or job change of the experts. To address these problems, this paper presents a method for process analysis and transfer lines configuration. Results of the application of the method to a real case are reported

Logic control is an integral part of manufacturing systems. The creation and debugging of the logic control represents a significant amount of the effort needed to design a large manufacturing system. Today’s rapidly shifting markets have greatly reduced the life of a product design and the manufacturing system to produce it. As a result reconfigurable manufacturing systems are being developed which are capable of producing different parts over its life. These systems will need control logic, which is capable of being easily reconfigured as the system changes. This work describes the analysis of Finite Position Machines (FPMs) for reconfigurable manufacturing systems thought VS Tree method. VS tree allows to create feasible Pattern structures, whose basically are systems of communicating finite position machines which represent safe reactive processes and allow behaviour description.

This paper presents a proposal for a method aimed to guide the designer within a context of product-process integration in forging design. The objective is not to generate but to assist the design of a product and its associated process planning. This method uses a decision support system called Ontoforge which is based on ontology for representing knowledge.