Out-of-Control Multivariate Patterns Recognition Using D2 and SVM: A Study Case for GMAW

Industrial processes seek to improve their quality control, including new technologies and satisfying requirements for globalised markets. In this paper, we present an innovative method based on Multivariate Pattern Recognition (MVPR) and process monitoring in a real-world study case. By identifying...

Full description

Saved in:
Bibliographic Details
Published in:Mathematics (Basel) 2021-02, Vol.9 (5), p.467
Main Authors: Chiñas-Sanchez, Pamela, Lopez-Juarez, Ismael, Vazquez-Lopez, Jose Antonio, Navarro-Gonzalez, Jose Luis, Hernandez-Lopez, Aidee
Format: Article
Language:English
Subjects:
GMAW
mahalanobis distance
multivariate patterns
robotic welding process
support vector machines (SVM)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Industrial processes seek to improve their quality control, including new technologies and satisfying requirements for globalised markets. In this paper, we present an innovative method based on Multivariate Pattern Recognition (MVPR) and process monitoring in a real-world study case. By identifying a distinctive out-of-control multivariate pattern using the Support Vector Machines (SVM) and the Mahalanobis Distance D2 it is possible to infer the variables that disturbed the process; hence, possible faults can be predicted knowing the state of the process. The method is based on our previous work, and in this paper we present the method application for an automated process, namely, the robotic Gas Metal Arc Welding (GMAW). Results from the application indicate an overall accuracy up to 88.8%, which demonstrates the effectiveness of the method, which can also be used in other MVPR tasks.
ISSN:2227-7390
2227-7390
DOI:10.3390/math9050467