APPLICATION OF THE GROSS ERROR ANALYSIS TO DISORDERS IDENTIFICATION IN MANUFACTURING PROCESS—A CASE STUDY

Izabela Dagmara Czabak-Górska, Aneta Kucińska-Landwójtowicz

Abstract


The article contains a description of the procedures to be followed in the analysis of the stability of the manufacturing processes based on an Individual Control Chart (XI) and a Moving Range (MR) Control Chart. In the following part of the article, we present the three-sigma rule and the confidence intervals for the average, which enable the elimination of random errors caused by, e.g. an improper conducting of a measurement.

Summary of the theoretical considerations is a study case in which survey data from a company, producing car seat frames, are used. The conducted study indicates that the elimination of Gross Error is significant to identify and eliminate the variability of production processes.


Keywords


stability of the process, Individuals Control Chart (IX), Moving Range Control Chart (MR), elimination of Gross Error, Statistical Process Control (SPC)

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References


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DOI: http://dx.doi.org/10.12955/cbup.v3.597

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