Design for Alternative Production Methods
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Tomra provides reverse vending machines (RVMs) to markets all over the world. Since the start in 1972 many competitors, challenging Tomra have occurred. Despite being the technical leader and having a dominating position in the market, Tomra see it as a goal to cut costs, and make their products even more competitive. In this thesis single parts from Tomras machines will be examined and optimized for lower cost, better environmental properties and enhanced functionality. The upper door of the Tomra multipac processing machine, and from the RVM; the cabinet, and in particular a tray placed inside it have been chosen as the parts for optimization. Concepts are presented, discussed and rated, before a conclusion is drawn. Several concepts are found to provide savings in terms of cost, some as well in terms of environmental impact and functionality. One concept for each of the parts are finally recommended for further investigation. A rolled upper door concept provides savings of NOK 122 per door at 25000 produced units, while simplifying assembly.A deep drawn tray concept vastly reduces part count in the RVM cabi- net, and hence provides estimated savings of NOK 197 per cabinet at 25000 produced units.