Objective
Powder metallurgy (P/M) is the major manufacturing route for a wide range of industrial parts such as transmission and gearbox steel parts for automotive, cem ented carbides and high speed steels for metal-, wood- or stone-working, magnet s and soft magnetic materials, fine ceramics, refractory metals, bearings... A ll these parts are produced by cold pressing a powder in a die and sintering th e resulting green body in a furnace. Although the problems are different in d etails, all these branches encounter the same practical difficulties: - in most cases, a post-sintering operation (sizing or machining) is necessary to obtain the final geometry of the parts. This operation represents 10% to 25% of the p roduction costs. - a tool set for die pressing costs between 1.000 and 100.000 ECU. The design of a tool set for a new product is made with a trial-and-error procedure that generates overcosts (up to 50% of the initial tooling costs) and delays (several weeks or months). - about 2% (and far more for new fabrication s) of the parts are defective due to the presence of cracks. The need of a fina l control and the value of the rejected parts strongly increase the global prod uction costs. Savings for European industry estimated between 100 and 150 MECU appear to be possible on development and production costs and time-to-market co uld be markedly improved: - if the as-sintered parts could be more accurate, - if the tool design could be based on reliable predictive methods, - if the proc ess could be well designed, so that no cracks occur. This could be obtained by replacing the common trial-and-error procedure by a more efficient approach usi ng predictive methods based on numerical simulation. Consequently, the objectiv e of the MC2 Project is to develop the industrial modelling of the whole P/M pr ocess for the wide range of materials concerned by this technique. It is expect ed that crack-free parts with high geometrical accuracy (10 pm or 0.1%) and den sity homogeneity can routinely be produced, if the design of the parts, of the pressing tools and of the pressing schedule is based on a numerical simulation that integrates the knowledge generated experimentally and theoretically in thi s project. To achieve this goal, the technical programme will include - the se lection and implementation of existing macromechanical models for cold compacti on, friction and sintering in suitable finite element codes - the experimental determination of materials data for several reference materials - the validat ion and optimization of the numerical modelling, the simulation and the fabrica tion of reference parts - the comparison between computed and experimental res ults in term of geometry, density distribution, residual stresses and mechanica l strength. The project will end with the specification and the design of an i ndustrial modelling tool usable in all powder industries. The MC2 project is pr esented with the full support of the European Powder Metallurgy Association (EP MA) which represents 80 companies or manufacturing groups i.e. 80% of the Europ ean Powder Metals Industry (see letter in Appendix). The proposed project will comply with the aims and objectives of Brite Euram III programme in the general technical areas 2.1.1 .M (New more accurate and energy efficient near net shap e powder metallurgy to reduce costs, energy and waste in the mass production of components), 2.2.1.S 2.2.2.S.The MC2 project is proposed in the scope of PM- MODNET , a Thematic Network funded by the EC in the frame of the IMT Programme (n BETN-0010). The objective of this Network coordinated by the EPMA is to exa mine the possibility to initiate projects on the modelling of P/M processes.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences inorganic chemistry inorganic compounds
- engineering and technology mechanical engineering manufacturing engineering subtractive manufacturing
- natural sciences mathematics pure mathematics geometry
- engineering and technology materials engineering ceramics
- engineering and technology materials engineering metallurgy
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
38054 Grenoble
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.