Examination of inline process monitoring of the cross-wedge rolling process using AI-based image recognition

authored by: Paulina Merkel, Nils Doede, Mareile Kriwall, Malte Stonis, Bernd Arno Behrens
Abstract: Process monitoring and the resulting increase in quality through AI are attracting increasing attention in large parts of the manufacturing industry. The possibilities of inline process monitoring of cross-wedge rolling are being investigated as part of the research of the Collaborative Research Center 1153. The aim is to develop a monitoring system that enables inline process control in order to compensate process deviations that occur during the forming process. Therefore, an algorithm is developed that can detect and classify process deviations within a few seconds and while the process is still running. An AI-based image recognition algorithm was applied as part of this research work. The process data was collected as part of a sensitivity study of the process parameters. A parameter study was used to determine optimized hyperparameters for AI modeling that enable a high prediction accuracy. The challenge of the necessary speed of the prediction was tested and validated. The evaluation of the algorithm including the generation of a picture requires 270 ms on average and is therefore fast enough to be used as preparation for process control. The investigations revealed a possibility for data augmentation that significantly increases the predictive accuracy of the models. Leave-One-Out Cross-Validation (LOOCV) was used to conclude the overall performance of the model.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): Institut für integrierte Produktion Hannover (IPH)
Type: Article
Journal: Production Engineering
No. of pages: 11
ISSN: 0944-6524
Publication date: 03.12.2024
Publication status: E-pub ahead of print
Peer reviewed: Yes
ASJC Scopus subject areas: Mechanical Engineering, Industrial and Manufacturing Engineering
Electronic version(s): https://doi.org/10.1007/s11740-024-01321-y (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{dc4c872e9a9a495c977f0300ee3dd8fb,
title = "Examination of inline process monitoring of the cross-wedge rolling process using AI-based image recognition",
abstract = "Process monitoring and the resulting increase in quality through AI are attracting increasing attention in large parts of the manufacturing industry. The possibilities of inline process monitoring of cross-wedge rolling are being investigated as part of the research of the Collaborative Research Center 1153. The aim is to develop a monitoring system that enables inline process control in order to compensate process deviations that occur during the forming process. Therefore, an algorithm is developed that can detect and classify process deviations within a few seconds and while the process is still running. An AI-based image recognition algorithm was applied as part of this research work. The process data was collected as part of a sensitivity study of the process parameters. A parameter study was used to determine optimized hyperparameters for AI modeling that enable a high prediction accuracy. The challenge of the necessary speed of the prediction was tested and validated. The evaluation of the algorithm including the generation of a picture requires 270 ms on average and is therefore fast enough to be used as preparation for process control. The investigations revealed a possibility for data augmentation that significantly increases the predictive accuracy of the models. Leave-One-Out Cross-Validation (LOOCV) was used to conclude the overall performance of the model.",
keywords = "AI-based image recognition, Cross-wedge rolling, Hybrid components, Process monitoring",
author = "Paulina Merkel and Nils Doede and Mareile Kriwall and Malte Stonis and Behrens, {Bernd Arno}",
note = "Publisher Copyright: {\textcopyright} The Author(s) under exclusive licence to German Academic Society for Production Engineering (WGP) 2024.",
year = "2024",
month = dec,
day = "3",
doi = "10.1007/s11740-024-01321-y",
language = "English",
journal = "Production Engineering",
issn = "0944-6524",
publisher = "Springer Verlag",
}