Obliczanie składowej jakości oee przy wielu operacjach technologicznych
Journal Title: Zarządzanie Przedsiębiorstwem - Year 2015, Vol 0, Issue 2
Abstract
Aim of this article is to present way of calculation of the OEE rate for work stations. The OEE rate is a tool used in searching for the best way of improvement of functionality of a work station. During the research in X factory, which lead to calculation of OEE rate for certain work station, it was noticed that while producing elements which require multiple technical operations on this single station, the output value of rate is imprecise. The above imprecision results from the rules of calculation of the quality component of the OEE rate, which is calculated as quotient of the number of properly produced elements to entire production on particular station. These rules dont consider the amount of technical operations performed on specific element properly, before it is considered a defect, also they dont consider possibility of performing more than one correcting operation, as well as they dont distinguish operations with different time schedule. As a result of performed analysis a new way of calculating the quality component of OEE rate was developed. Developing new formula for the quality component allows to eliminate earlier mentioned lack of precision, therefore provides a better reflection of actual quality of the machine. This allows to evaluate the best way of improvement. This article presents 3 various formulas, which allow calculating the quality component, depending on type of production and available amount of information. Variety of results, presented by examples, indicate that in many cases the classical formula, which can be found in the literature, can lead to the imprecision of the measurement.
Authors and Affiliations
M. Wirkus, A. Kukułka
Keywords
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- EP ID EP352892
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