Automated root cause analysis of non-conformities with machine learning algorithms

• Autorzy: Mueller T. , Greipel J. , Weber T. , Schmitt R. H.

Identyfikatory

DOI

10.5604/01.3001.0012.7633

• Języki publikacji: EN

Abstrakty

EN

To detect root causes of non-conforming parts - parts outside the tolerance limits - in production processes a high level of expert knowledge is necessary. This results in high costs and a low flexibility in the choice of personnel to perform analyses. In modern production a vast amount of process data is available and machine learning algorithms exist which model processes empirically. Aim of this paper is to introduce a procedure for an automated root cause analysis based on machine learning algorithms to reduce the costs and the necessary expert knowledge. Therefore, a decision tree algorithm is chosen. A procedure for its application in an automated root cause analysis is presented and simulations to prove its applicability are conducted. In this paper influences affecting the success of detection are identified and simulated e.g. the necessary amount of data dependent on the amount of variables, the ratio between categories of non-conformities and OK parts as well as detectable root causes. The simulations are based on a regression model to determine the roughness of drilling holes. They prove the applicability of machine learning algorithms for an automated root cause analysis and indicate which influences have to be considered in real scenarios.

Słowa kluczowe

EN

root cause analysis; machine learning; decision tree; simulation

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2018
• Tom: Vol. 18, No. 4
• Strony: 60--72
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Mueller T.

• Laboratory for Machine Tools and Production Engineering WZL of RWTH Aachen, Chair of Production Metrology and Quality Management, Aachen, Germany

autor

Greipel J.

• Laboratory for Machine Tools and Production Engineering WZL of RWTH Aachen, Chair of Production Metrology and Quality Management, Aachen, Germany

autor

Weber T.

• Boeing Research & Technology, Europe

autor

Schmitt R. H.

• Laboratory for Machine Tools and Production Engineering WZL of RWTH Aachen, Chair of Production Metrology and Quality Management, Aachen, Germany

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).