Journal of South China University of Technology (Natural Science Edition) ›› 2018, Vol. 46 ›› Issue (10): 103-110.doi: 10.3969/j.issn.1000-565X.2018.10.014

• Mechanical Engineering • Previous Articles     Next Articles

Modeling and Experimental Study of Temperature Field in Rail Milling-grinding

 SHU Hengtao1 QIU Zhicheng1 SHANGGUAN Wenbin1， 2 WANG Xinling2 DUAN Yaolong2    

  1. 1． School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China; 2． Xuelong Group Co． Ltd． ，Ningbo 315806，Zhejiang，China
  • Received:2018-02-20 Revised:2018-06-07 Online:2018-10-25 Published:2018-09-01
  • Contact: 全燕鸣( 1957-) ，女，教授，博士生导师，主要从事难加工材料的切削加工机理与刀具技术及制造过程中的检测及 信息数字化等研究 E-mail: meymquan@scut.edu.cn
  • About author:全燕鸣( 1957-) ，女，教授，博士生导师，主要从事难加工材料的切削加工机理与刀具技术及制造过程中的检测及 信息数字化等研究
  • Supported by:
     National Natural Science Foundation of China( 51675184) and the Science and Technology Planning Project of Guangdong Province， China

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Abstract: Plenty of heat is generated in rail milling-grinding operation which will cause continuous heat rise around the work-piece area, excessive heat can affect the milling-grinding quality. Based on linear heat source method, the temperature field model of form milling and form grinding was built respectively and the joint milling-grinding temperature model was deduced via the superposition of temperature field. The temperature changing curves on the work-piece surface were attained by MATLAB simulation. The milling-grinding experiments were conducted on the specially-built platform which includes cutting and measuring system to obtain the temperature changing curves, and the results were compared with simulation ones to demonstrate the validity of the model. The model can predict the milling-grinding temperature and the temperature control is realized by milling-grinding speed ratio and selecting processing parameters to prevent the rail material burns.

Key words: vorticity analysis, axial flow cooling fan, aerodynamic performances, guide rib

CLC Number: