Heavy machinery industry is characterized by a number of specifi c features that cause signifi cant variations in theprocessing time of products in the individual workplaces and frequent occurrence of fl oating bottlenecks, whichchange their positions. Depending on the product range being processed, a given workplace is the bottleneck onlyfor some period of time. When the bottleneck moves to another workplace, it leads to unnecessary loss of capacityof the fl oating bottleneck. To maximize the utilization, it is necessary to protect those bottlenecks by creating specialbuff ers. The objective of this article is to design a methodology used for the determination and control of buff ersthat are going to protect the fl oating bottlenecks from operating capacity losses caused by transfer of the constrainto another workplace. These buff ers are referred to as „power buff ers“. The designed methodology has been verifi edin the process of forged pieces machining.
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