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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Numerical and experimental study of dry cutting for an aeronautic aluminium alloy (A2024-T351)
International Journal of Machine Tools and Manufacture, Volume 48, No. 11, Year 2008
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Description
In the present contribution, numerical and experimental methodologies concerning orthogonal cutting are proposed in order to study the dry cutting of an aeronautic aluminium alloy (A2024-T351). The global aim concerns the comprehension of physical phenomena accompanying chip formation according to cutting velocity variation. For the numerical model, material behaviour and its failure criterion are based on the Johnson-Cook law. The model proposes a coupling between material damage evolution and its fracture energy. A high-speed camera was used to capture the chip formation sequences. The numerical results show that the chip-workpiece contact and the tool advancement induce bending loads on the chip. Consequently, a fragmentation phenomenon takes place above the rake face when the chip begins to curl up. The computed results corroborate with experimental ones. The numerical results predict the residual stress distribution and show high values, along the cutting direction, on the machined workpiece surface. © 2008 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Mabrouki, Tarek
France, Villeurbanne
Insa Lyon
Girardin, François
France, Villeurbanne
Insa Lyon
Asad, Muhammad
France, Villeurbanne
Insa Lyon
Rigal, Jean François
France, Villeurbanne
Insa Lyon
Statistics
Citations: 258
Authors: 4
Affiliations: 1
Identifiers
Doi:
10.1016/j.ijmachtools.2008.03.013
ISSN:
08906955