Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Disassembly factories for recovery of resources in product and material cycles
    ( 1996)
    Seliger, G.
    ;
    Hentschel, C.
    ;
    Wagner, M.
    The worldwide increase of waste and restricted resources require the recycling of worn-out products. Disassembly of complex consumer products offers advantages to other recycling technologies, like material recovery and reuse of components. Current disassembly processes, however, can not cope with the increasing amount and variety of products that have to be discarded each year. The multifarious aspects of disassembly factories are addressed in an integrated project by an interdisciplinary research team at the Technical University Berlin. The closely correlated study fields are disassembly processes and tools, logistics and urban planning, product evaluation and disassembly planning as well as design for disassembly. An outline of the research program is given and the guiding theses are presented. Two example illustrate the range of the research activities. In a bottom-up approach fundamental knowledge about disassembly processes is acquired and used for the design of new tools. With t he strategy of creating new acting surfaces disassembly tools become independent of shape variations and additional changes to the products during usage. The topdown approach provides methods for the planning of disassembly factories. Grouping of product variants is used to support the design of disassembly systems. To cope with the uncertainties due to usage influences on the product, fuzzy set theory is applied for planning purposes.