Experimental and Finite Element Study of Steady State Micro-cutting Characteristics of Aluminum Alloy （2A12）
This paper studies the micro-cutting characteristics of aluminum alloy （2A12） based on a series of orthogonal experiments and finite element method （FEM） simulations. An energy-based ductile failure law was proposed in the FEM simulation. The simulated cutting forces and chip morphology were compare...
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| Published in | 天津大学学报：英文版 Vol. 17; no. 5; pp. 344 - 350 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2011
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1006-4982 1995-8196 |
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| Summary: | This paper studies the micro-cutting characteristics of aluminum alloy （2A12） based on a series of orthogonal experiments and finite element method （FEM） simulations. An energy-based ductile failure law was proposed in the FEM simulation. The simulated cutting forces and chip morphology were compared with experimental results. The simulation result indicates that there is a close relationship between the cutting force and cutting heat. The micro-cutting force decreases as the heat flux vector increases. Both the cutting heat and the micro-cutting force need a finite time to achieve a steady state. It is observed that with the cutting speed of 169.95 m/min and uncut chip thickness of 6 μm, the heat flux vector in the workpiece increases to a stable value after 0.06 ms; meanwhile, the principal cutting force decreases to a steady state correspondingly, i.e., the micro-cutting process achieves the steady state. It is concluded that the steady state micro-cutting simulation can reflect the cutting process accurately. |
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| Bibliography: | This paper studies the micro-cutting characteristics of aluminum alloy （2A12） based on a series of orthogonal experiments and finite element method （FEM） simulations. An energy-based ductile failure law was proposed in the FEM simulation. The simulated cutting forces and chip morphology were compared with experimental results. The simulation result indicates that there is a close relationship between the cutting force and cutting heat. The micro-cutting force decreases as the heat flux vector increases. Both the cutting heat and the micro-cutting force need a finite time to achieve a steady state. It is observed that with the cutting speed of 169.95 m/min and uncut chip thickness of 6 μm, the heat flux vector in the workpiece increases to a stable value after 0.06 ms; meanwhile, the principal cutting force decreases to a steady state correspondingly, i.e., the micro-cutting process achieves the steady state. It is concluded that the steady state micro-cutting simulation can reflect the cutting process accurately. 12-1248/T CHEN Guang, REN Chengzu, JIN Xinmin, GUO Tao （Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China） micro-cutting; aluminum alloy; steady state; finite element method |
| ISSN: | 1006-4982 1995-8196 |