TITLE

HOTELLİNG T² KONTROL GRAFİĞİNİN BOYA ÜRETİM SÜRECİNE UYGULANMASI ÜZERİNE BİR ÇALIŞMA

AUTHOR(S)
Özçomak, Mehmet Suphi
PUB. DATE
September 2003
SOURCE
Ekev Academic Review;Fall2003, Vol. 7 Issue 17, p337
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using multivariate quality control methods rather than univariate quality control methods leads to lose of information in a process which has two or more quality variables correlated with each other. Hotelling T² control chart accepted as a basis of multivariate quality control methods is commonly used to compensate this lose of information. In this study, Hotelling T² control chart and Hotelling T² control chart for individual observations is explained. Also, when this chart gives an out-of-control signal, it is explained how to determine and interpret this signal. In the application part of the study, it has been conducted a multivariate quality control study in a paint factory in Erzurum. There are three major quality variables for the paint: Viscosity, solid particles and specific weight. By using these variables, a quality control study is carried out with Hotelling T² control chart. Major findings show that the process gives an out-of-control signal for the 27th sample, which is thought it results from solid particles.
ACCESSION #
17660291

 

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