Study on heat transfer model of coolant boundary layer during high speed cutting process

Zhang Yucun; Yang Yi; Li Qun; Li Yongbo

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Study on heat transfer model of coolant boundary layer during high speed cutting process

机译：高速切削过程中冷却液边界层的传热模型研究

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In the high-speed cutting process, coolant is applied to ensure the cutting tools temperature stable. In the current study, scholars mainly studied the characteristics of the tool surface temperature during the cutting process. However, the cooling and heat transfer characteristics of the cooling fluid were ignored during the cutting process in their study. By analyzed the motion state of the coolant around the cutting tool, a heat transfer model of the coolant fluid is proposed in this paper based on the fluid boundary layer theory. In the heat transfer model, the solution of the temperature gradient of the coolant is obtained by solving the Brahzyus similarity solution. Moreover, the relationship between the temperature of the cutting tool in the coolant environment and the natural convection environment was analyzed by simulation experiment. Then the temperature trend of different Pr for coolant was obtained. In addition, the effect of coolant flow on the cooling effect of the system was discussed in this paper, and the expression of Nu number was obtained. The heat transfer model about the coolant boundary layer proposed in this paper is of great significance for the study of the coolant's cooling characteristics during high speed cutting.

机译：在高速切削过程中，使用冷却液以确保切削工具的温度稳定。在当前的研究中，学者们主要研究切削过程中刀具表面温度的特性。但是，在他们的研究中，切削过程中忽略了冷却液的冷却和传热特性。通过分析冷却液在切削刀具周围的运动状态，基于流体边界层理论，提出了冷却液的传热模型。在传热模型中，通过求解Brahzyus相似解获得冷却液温度梯度的解。此外，通过仿真实验分析了冷却液环境下刀具温度与自然对流环境之间的关系。然后获得了冷却剂不同Pr的温度趋势。此外，本文还讨论了冷却剂流量对系统冷却效果的影响，并获得了Nu数的表达式。本文提出的冷却液边界层传热模型对于研究高速切削过程中冷却液的冷却特性具有重要意义。

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来源
《International Journal of Heat and Mass Transfer》 |2017年第11期|1304-1313|共10页
作者
Zhang Yucun; Yang Yi; Li Qun; Li Yongbo;
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作者单位

School of Electrical Engineering, Yanshan University, Qinhuangdao City, Hebei Province, China;

School of Electrical Engineering, Yanshan University, Qinhuangdao City, Hebei Province, China;

College of Mechanical Engineering, Yanshan University, Qinhuangdao City, Hebei Province, China;

School of Electrical Engineering, Yanshan University, Qinhuangdao City, Hebei Province, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Boundary layer; Coolant flow; Coolant fluid; Heat transfer model; High-speed cutting process; Temperature gradient;

机译：边界层;冷却液流量冷却液;传热模型;高速切割工艺;温度梯度;

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Study on heat transfer model of coolant boundary layer during high speed cutting process

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