Cruz, Carlos Eduardo Dorigatti [UNESP]De Aguiar, Paulo Roberto [UNESP]Machado, Álisson RochaBianchi, Eduardo Carlos [UNESP]Contrucci, João Gabriel [UNESP]Neto, Frederico Castro [UNESP]2014-05-272014-05-272013-04-01International Journal of Advanced Manufacturing Technology, v. 66, n. 1-4, p. 151-158, 2013.0268-37681433-3015http://hdl.handle.net/11449/74897This paper presents a new method to estimate hole diameters and surface roughness in precision drilling processes, using coupons taken from a sandwich plate composed of a titanium alloy plate (Ti6Al4V) glued onto an aluminum alloy plate (AA 2024T3). The proposed method uses signals acquired during the cutting process by a multisensor system installed on the machine tool. These signals are mathematically treated and then used as input for an artificial neural network. After training, the neural network system is qualified to estimate the surface roughness and hole diameter based on the signals and cutting process parameters. To evaluate the system, the estimated data were compared with experimental measurements and the errors were calculated. The results proved the efficiency of the proposed method, which yielded very low or even negligible errors of the tolerances used in most industrial drilling processes. This pioneering method opens up a new field of research, showing a promising potential for development and application as an alternative monitoring method for drilling processes. © 2012 Springer-Verlag London Limited.151-158engArtificial neural networkDrilling process monitoringHole diameterSurface roughnessCutting processDevelopment and applicationsDrilling processExperimental measurementsMonitoring methodsNeural network systemsSandwich platesCutting toolsErrorsProcess monitoringNeural networksArtigo10.1007/s00170-012-4314-xWOS:000316574300013Acesso restrito2-s2.0-84875419084145540030966008110991520075749210000-0002-9934-4465