Practical applications of the 'energy–triaxiality' state relationship in metal cutting
| Autor: | Viktor P. Astakhov, Yalla Abushawashi, Xinran Xiao |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Materials science Cutting tool Mechanical Engineering Rake Metallurgy 02 engineering and technology Mechanics 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Finite element method Stress (mechanics) Rake angle 020901 industrial engineering & automation Machining Fracture (geology) General Materials Science 0210 nano-technology Plane stress |
| Zdroj: | Machining Science and Technology. 21:1-18 |
| ISSN: | 1532-2483 1091-0344 |
| Popis: | Most of the energy spent on metal cutting is due to the unavoidable plastic deformation of the layer being removed during its transformation into the chip. Based on the new principle of metal cutting being a purposeful fracture process, the dominant parameter that controls this process in orthogonal metal cutting (OMC) is the triaxiality state. Therefore, the chip triaxiality state in the deformation zone can be correlated to the energy of the unwanted plastic deformation for a particular cutting configuration. This article investigates this type of correlation by changing the cutting tool geometry. A series of finite element (FE) simulations were performed for various tool rake angles shows a strong relationship between the stress triaxiality state parameter in the deformation zone and the required cutting force components. |
| Databáze: | OpenAIRE |
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