Skip to Main content Skip to Navigation
Journal articles

Dry Machining Aeronautical Aluminum Alloy AA2024-T351: Analysis of Cutting Forces, Chip Segmentation and Built-Up Edge Formation

Abstract : In this paper, machining aeronautical aluminum alloy AA2024-T351 in dry conditions was investigated. Cutting forces, chip segmentation, and built-up edge formation were analyzed. Machining tests revealed that the chip formation process depends on cutting conditions and tool geometry. So continuous and segmented chips are generated. Under some cutting conditions, built-up edge formation occurs. A predictive machining theory, based on a finite elements method (FEM), was applied to reproduce and explain these phenomena. Thermomechanical behaviors of the work material and the tool-work material interface were considered. Results of the proposed modelling were compared to experimental data for a wide range of cutting speed. It was shown that the feed force is well reproduced by the ALE-FE (arbitrary lagrangian-eulerian finite element) formulation and highly underestimated by the lagrangian finite element (LAG-FE) one. While, the periodic localized shear band, leading to a chip segmentation, is well reproduced with the Lagrangian FE formulation. It was found that the chip segmentation can be correlated to the cutting force evolution using the defined chip segmentation intensity parameter. For the built-up edge (BUE) phenomenon, it was shown that it depends on the contact/friction at the tool-chip interface, and this is possible to simulate by making the friction coefficient time-dependent.
Document type :
Journal articles
Complete list of metadata

https://hal.univ-lorraine.fr/hal-03325732
Contributor : Mohammed Nouari <>
Submitted on : Wednesday, August 25, 2021 - 11:26:17 AM
Last modification on : Thursday, August 26, 2021 - 3:49:32 PM

File

metals-06-00197.pdf
Publisher files allowed on an open archive

Identifiers

Citation

Badis Haddag, Samir Atlati, Mohammed Nouari, Abdelhadi Moufki. Dry Machining Aeronautical Aluminum Alloy AA2024-T351: Analysis of Cutting Forces, Chip Segmentation and Built-Up Edge Formation. Metals, MDPI, 2016, 6, ⟨10.3390/met6090197⟩. ⟨hal-03325732⟩

Share

Metrics

Record views

5

Files downloads

5