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Investigation of tool failure modes and machining disturbances using monitoring signals

Popa, Andreï and Dessein, Gilles and Baili, Maher and Dutilh, Vincent Investigation of tool failure modes and machining disturbances using monitoring signals. (2012) Advanced Materials Research, vol. 423 . pp. 128-142. ISSN 1022-6680

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Official URL: http://www.scientific.net/AMR.423.128

Abstract

The ACCENT Project (FP7- AAT- 2007- RTD-1) will allow the European Aero Engine manufacturers to improve their competitiveness by applying adaptive control techniques to the manufacturing of their components. For the critical rotating parts of aircraft engines, the surface integrity generated after machining is a key factor on the life cycle. In this context, one particular attention has to be carried out on tool condition. The aim of this paper is to define a monitoring approach able to detect the tool condition and machining disturbances. The main failure modes characterizing this particular Nickel base drilling and the apparition of embedded chips over the machined surface were identified. By experimental techniques, cartography of failure modes was performed. The results show that flank wear and notch are the main failure modes limiting the tool life. For some cutting conditions, the tool failure occurs after the first hole due to the important cutting forces. Some interesting combinations are made between the spindle current/accelerometers/ thrust force and flank wear, tool breakage and notch. Before these correlations, a detailed signal analysis was performed, considering different disturbing phenomena, such as chips evacuation problem. Finally, a “synopsis” for process monitoring is proposed, considering the analyzed phenomena.

Item Type:Article
Additional Information:Thanks to Trans Tech Publications. The definitive version is available at http://www.scientific.net/ The original PDF of the article can be found at : http://www.scientific.net/AMR.423.128
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > SAFRAN (FRANCE)
Laboratory name:
Laboratoire Génie de Production - LGP (Tarbes, France) - Mécanique des Matériaux des Structures et Procédés
Statistics:download
Deposited By: Maher BAILI
Deposited On:03 Dec 2012 16:32

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