A fuzzy mean and range control charts were used to monitor the production process. Fuzzy
control charts were validated through a case study at the aluminum production company by
collecting data from the factory and comparing it to the traditional Shewhart control charts which
have been already applied by the factory for monitoring the process. The results reveal that
the proposed fuzzy control charts could detect abnormal shifts in the production process more
accurately than the traditional Shewhart control charts, as they had used more information from
the process.
In this study, fuzzy statistical quality control application was applied to Eti Aluminum Co. aluminum
production plant. Total color difference parameter (ΔE) data were studied using fuzzy observation
on an aluminum production plant. For this purpose, color parameters of the aluminum production
plant were evaluated using triangular fuzzy number (TFN) and fuzzy process capability indices
(PCIs). Process capability analysis was carried out to determine whether there was sufficient of
the production process with the information obtained. The Cp, Cpu and Cpl indices were 1.267,
1.263, 1.257; 1.419, 1.414, 1.408 and 1.115, 1.111, 1.106, respectively. According to these values,
it has been determined that the processes meet the needs.
Fuzzy control charts Statistical process control Process capability indices Aluminium Total color difference
Primary Language | Turkish |
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Journal Section | Research Article |
Authors | |
Publication Date | September 1, 2019 |
Submission Date | September 18, 2018 |
Published in Issue | Year 2019 Volume: 58 Issue: 3 |