Numerical Model for Prediction of Cutting Forces in a Vibratory Drilling Process

Abstract:

The drilling operation is considered by manufacturers as complex and difficult process (rapid wear of the cutting edge as well as problems of chip evacuation). Faced with these failures, manufacturers have shifted in recent years towards the drilling process assisted by forced vibrations. This method consist to add an axial oscillation with a low frequency to the classical feed movement of the drill so as to ensure good fragmentation and better chip evacuation. This paper presents a model for prediction of cutting forces during a drilling operation assisted by forced low-frequency vibration. The model allows understanding the interaction between the tool and the workpiece and identifying numerically the three-dimensional evolution of the cutting force components generated by the vibratory drilling operation. The effects of cutting parameters, tool parameters and those of forced vibrations on the cutting forces distributions will be discussed.

• Periodical: Advanced Materials Research (Volume 1016)
• Pages: 215-220
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1016.215
• Online since: August 2014
• Authors: Nawel Glaa, Kamel Mehdi*, Moez Ben Jaber
• Keywords: Cutting Force, Numerical Simulation, Vibratory Drilling

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