A production quality monitoring approach based on a condition index: an application on the glass container industry

• Type: Article in International Scientific Journal
• Date: 2025

Authors

Oliveira, MA (Author) Other; Luis Guimarães (Author) FEUP; José Luís Moura Borges (Author) FEUP; Bernardo Almada Lobo (Author) FEUP

Journal

Title: International Journal of Production Research

Pages: 1-28

ISSN: 0020-7543

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-018-K1F

DOI: 10.1080/00207543.2025.2485316

Abstract (EN): Ensuring process quality in modern manufacturing is increasingly challenging due to the complexity of production processes and reliance on skilled operators, which can lead to suboptimal solutions and poor quality. To address these challenges, we introduce a novel, unsupervised, robust, nonparametric control chart for Phase II monitoring. This chart tracks the degradation of a quality characteristic using a condition index that captures mean and scale shifts without relying on assumptions, offering high flexibility and adaptability. Comparative studies with state-of-the-art nonparametric schemes demonstrate faster detection capabilities and competitive accuracy across various scenarios. We validate our approach through its application in the glass container production process, showcasing its effectiveness in monitoring multiple defective rates. Although tested on defective rates, the methodology is adaptable to any quantifiable quality characteristic.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 28