Objectif
The importance of design in product development is well known. This is specially true in what concerns the cast industry. There is an increasing pressure to develop specialized products to fit markets niches, and products featuring smarter designs, to improve overall quality and mainly to do all this, faster, better and more economically. Castings is the most effective method to produce metal parts in terms of both material and labor costs. In comparison with other fabrication methods, casting allows less geometrical constraints, the use of a wide variety of alloys, thin walls, etc. However, these advantages can be offset by the long lead time between purchasing and acceptance, by the efficiency associated to the process, as well as by the existence of casting defects. These factors results from the need of mould design optimization. In fact, the pattern design process is usually described as an craftsart and most of the cases is based on empirical and undocumented experience. Computers could assist the foundryman in the design of a pattern, gating and feeding system, simulating and optimizating the most adequate mold design to be used. It is therefore envisaged to develop an integrated system which optimizes the design accordingly with the component performance requirements and which will consider the main factors and relationships of the casting process, dependent on the design stage. The system to be developed will comprise the pattern design made in CAD originating a drawing in electronic format. This CAD data will be used in the simulation of different mold designs in order to evaluate the different solutions to produce the final pattern. Each mold design solution is characterized by parameters and technical solutions used. To guide the development of the mold designs to simulate, an expert system will be developed. This expert system will be based on a casting parameter database and the knowledge of experts, which will include the results and conclusions of workshop research as well as industrial expertise, and will deliver advice for dimensional characteristics to use as well as technical solutions to apply in new mold designs to simulate. This process, applied in the product development stage, will be used in an iterative way in order to obtain a solution which minimizes material waste, but will also allow to increase productivity, to reduce production costs and enlarge the market to other sectors due to the flexibility of this new product development techniques.
The importance of design in product development is well known. This is specially true in what concerns the cast industry. There is an increasing pressure to develop specialized products to fit markets niches, and products featuring smarter designs, to improve overall quality and mainly to do all this, faster, better and more economically. Castings is the most effective method to produce metal parts in terms of both material and labor costs. In comparison with other fabrication methods, casting allows less geometrical constraints, the use of a wide variety of alloys, thin walls, etc. However, these advantages can be offset by the long lead time between purchasing and acceptance, by the efficiency associated to the process, as well as by the existence of casting defects. These factors results from the need of mould design optimization. In fact, the pattern design process is usually described as an craftsart and most of the cases is based on empirical and undocumented experience. Computers could assist the foundryman in the design of a pattern, gating and feeding system, simulating and optimizating the most adequate mold design to be used. It is therefore envisaged to develop an integrated system which optimizes the design accordingly with the component performance requirements and which will consider the main factors and relationships of the casting process, dependent on the design stage. The system to be developed will comprise the pattern design made in CAD originating a drawing in electronic format. This CAD data will be used in the simulation of different mold designs in order to evaluate the different solutions to produce the final pattern. Each mold design solution is characterized by parameters and technical solutions used. To guide the development of the mold designs to simulate, an expert system will be developed. This expert system will be based on a casting parameter database and the knowledge of experts, which will include the results and conclusions of workshop research as well as industrial expertise, and will deliver advice for dimensional characteristics to use as well as technical solutions to apply in new mold designs to simulate. This process, applied in the product development stage, will be used in an iterative way in order to obtain a solution which minimizes material waste, but will also allow to increase productivity, to reduce production costs and enlarge the market to other sectors due to the flexibility of this new product development techniques.
Champ scientifique (EuroSciVoc)
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CORDIS classe les projets avec EuroSciVoc, une taxonomie multilingue des domaines scientifiques, grâce à un processus semi-automatique basé sur des techniques TLN. Voir: Le vocabulaire scientifique européen.
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Coordinateur
4702 Braga
Portugal
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