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Finite element modeling on micro-machining of graphene-reinforced aluminum matrix composites.
- Source :
- International Journal of Advanced Manufacturing Technology; Jan2023, Vol. 124 Issue 1/2, p97-110, 14p, 1 Color Photograph, 10 Diagrams, 4 Charts, 2 Graphs
- Publication Year :
- 2023
-
Abstract
- Graphene-reinforced metal matrix composites have received a lot of attention from academia and industry due to their excellent mechanical properties. In this paper, the machinability of graphene-reinforced aluminum metal matrix composites (Gr/Al MMCs) during micro-machining is investigated by finite element method. A three-dimensional modeling program based on the Python language is developed independently; this program can generate graphene with random distribution of orientation and position. A three-dimensional two-phase finite element model considering the cutting edge radius is established to simulate the micro-machining process of Gr/Al MMCs. Embedded element method is used in the model to more efficiently simulate the interaction behavior between graphene and aluminum matrix during micro-machining. The accuracy of the model is verified by indirect experiments. Stress distribution, tool-graphene interaction, chip formation, cutting force, and specific cutting energy during micro-machining are investigated with different uncut chip thickness. The simulation results show that graphene inhibits stress propagation, resulting in the formation of a stress field with irregular contours within the matrix. Continuous serrated chips are generated during the cutting process. The addition of graphene increases the magnitude and fluctuation of cutting forces. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02683768
- Volume :
- 124
- Issue :
- 1/2
- Database :
- Complementary Index
- Journal :
- International Journal of Advanced Manufacturing Technology
- Publication Type :
- Academic Journal
- Accession number :
- 161159714
- Full Text :
- https://doi.org/10.1007/s00170-022-10476-w