Setting up a machine (such as a forming press or molding machine) or a series of linked machines (an assembly line or cell) so that they switch from the production of one product or part to another. This involves changing parts, dies, molds, holders, etc. (also called set-up ). The changeover time is the time that elapses between the last item from the process before the changeover and the first good item from the process after the changeover. 

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