Flow field characteristics of the wedge zone between a major flank and a transient surface
| Autor: | Hong Jie Pei, Chungen Shen, Juan Huang, Gui Cheng Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Flank business.industry Mechanical Engineering 02 engineering and technology Mechanics Computational fluid dynamics Wedge (geometry) Flow field Industrial and Manufacturing Engineering Computer Science Applications 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Control and Systems Engineering Geotechnical engineering Surface layer Cutting fluid business Software Pressure gradient Geology Metal cutting |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 92:4253-4261 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-017-0489-5 |
| Popis: | During metal cutting, a wedge zone can develop between the major flank surface at the tool tip and the transient workpiece surface; the flow field characteristics in the wedge zone are crucial for the cutting fluid to penetrate to the deformation zone. In this study, a mathematical model was established on the basis of boundary-layer theory for the workpiece surface layer during the turning process. According to an analysis of wedge zones, the flow field exhibits a negative pressure gradient. The pressure and velocity distributions of the flow field in the cutting region were analysed through computational fluid dynamics (CFD) simulation. The pressure distribution along the major flank, cutting speed direction from the tool tip to the plane of the shank bottom, velocity distribution along the wedge zone entrance, and tangential surface at workpiece bottom were obtained. The influences of workpiece rotation, workpiece diameter, and cut depth on the pressure distributions at the major and minor flanks were tested. The experimental results were consistent with the CFD solutions. |
| Databáze: | OpenAIRE |
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