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Metallurgical Analysis of Chip Forming Process when Machining High Strength Bainitic Steels

Article dans une revue avec comité de lecture
Author
HADDAD, Fares
DESAIGUES, Jean-Edouard
36484 ArcelorMittal Maizières Research SA
BOMONT-ARZUR, Anne
36484 ArcelorMittal Maizières Research SA
BOMONT, Olivier
ccLESCALIER, Christophe
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/15295
DOI
10.3390/jmmp3010010
Date
2019
Journal
Journal of Manufacturing and Materials Processing

Abstract

In the following work, we propose a metallurgical approach to the chip formation process. We focus on a turning application of high strength steel in which chips are produced by adiabatic shear bands that generate cutting force signals with high frequency components. A spectral analysis of these signals is applied and highlights peaks above 4 kHz depending on the cutting conditions. A microscopic analysis on the chip sections provided data on chip breaking and serration mechanisms. Shear band spacing and excitation frequency of the whole cutting system were calculated and gave a good correlation with cutting forces spectra.

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