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Journal articles

Assessment of chip segmentation process in machining using physical parameters

Abstract : The chip segmentation process has a significant effect on the cutting force fluctuation during machining which could affect tool vibration and tool wear. This paper deals with a quantitative analysis of the chip segmentation phenomenon in metal cutting. The notion of intensity of the phenomenon has been introduced. Various parameters have been proposed for this purpose. These parameters are based on dimensional characteristics of the segmented chip and the strain distribution within the chip. A Finite Element based modelling has been developed to simulate the chip formation process in the case of machining aeronautical aluminium alloy AA2024-T351 with WC-Co based cutting tools. From the simulated chip morphologies, introduced chip segmentation parameters are assessed. The impact of the cutting speed and tool geometry on the chip segmentation intensity is clearly highlighted. Cutting force and contact length fluctuations with respect to the cutting speed variation when segmentation occurs are discussed and deeply analysed. A correlation between speed increases as well as between chip formation process and average cutting force oscillation has been established thanks to the introduced parameters, showing thus their usefulness.
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Submitted on : Tuesday, January 10, 2017 - 3:53:34 PM
Last modification on : Saturday, October 16, 2021 - 11:22:03 AM


  • HAL Id : hal-01431214, version 1



Samir Atlati, Badis Haddag, Mohammed Nouari, M. Zenasni. Assessment of chip segmentation process in machining using physical parameters. Revue de Mécanique Appliquée et Théorique, Société Marocaine des Sciences Mécaniques, 2013, 2 (6), pp.629-640. ⟨hal-01431214⟩



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