Advanced search
Start date
Betweenand


Improving the quality assessment of drilled holes in aircraft structures

Full text
Author(s):
Kawano, Frederico Leoni Franco ; Toledo, Claudio Fabiano Motta ; Barbosa, Gustavo Franco ; Sagawa, Juliana Keiko ; Shiki, Sidney Bruce
Total Authors: 5
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY; v. 128, n. 3-4, p. 14-pg., 2023-07-25.
Abstract

This paper presents a case study conducted in an assembly cell specifically designed for the automated drilling of an aeronautical structure. The study shows how techniques approached by the 4.0 industry have the potential to contribute to manufacturing, breaking the limits imposed by the previous state-of-the art systems. This paper proposes a method that utilizes a committee of neural networks to calculate an indicator for the final quality of drilled holes. The method analyzes data obtained by monitoring the electric current consumed by the drilling system drive. Considering the tests carried out on a real product, the method presents an accuracy of 95% and has the potential to increase the efficiency of the drilling process, reducing the cycle time by up to 25%, since it can avoid measurement steps and physical inspections which increase the cycle time of the drilling process. The proposal contributes to the literature by presenting an unprecedented application and to the praxis by solving a relevant problem of the aerospace industry. (AU)

FAPESP's process: 19/22115-0 - Robotized additive manufacturing cell for fabrication of large parts
Grantee:Gustavo Franco Barbosa
Support Opportunities: Regular Research Grants