Finite Element Analysis of Burr Formation in Micro-Machining

Abstract:

In the process of micro-cutting for the precision small parts, one of the main problems is the micro burrs. The finite element software Abaqus was used to simulate the micro-cutting process of aluminum 2024-T3. To create this model, Johnson-Cook (J-C) model was used to establish the material model, and Arbitrary Lagrangian Eulerian (ALE) method was used to separate the chip from work-piece. The contact friction models which was used between chip and tool was the modified Coulomb friction law. The formation process of micro burrs was simulated dynamically, and the effect of different cutting parameters and tool geometry parameters on burrs forming was analyzed. Furthermore, the general law was obtained. The results provide the guidance for optimizing the tool geometry parameters and cutting parameters to reduce the burrs in micro-cutting with the high surface quality.

• Periodical: Applied Mechanics and Materials (Volume 487)
• Pages: 225-229
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.487.225
• Online since: January 2014
• Authors: Juan Huang*, Yong Hua Xiong, Jin Gui Huang, Gui Cheng Wang
• Keywords: Finite Element Analysis (FEA), Johnson-Cook Model, Lagrangian Eulerian Method, Micro-Burr Formation, Micro-Machining

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