Study on Properties of Grinding Fluid Jet and Nozzle Position for Super-high Speed Point Grinding
Super-high speed point grinding is a new high-speed grinding technology with some excellent machining performances. In such a grinding process, there is a high-speed airflow rotating around the edge of grinding wheel which hinders the grinding fluid from injecting into the contact area and makes the fluid atomization and splash during grinding process, so as to decrease the ratio of effective grinding fluid into contact area and affect the surface integrity of workpiece. In this paper, the structure and properties of grinding fluid jet is analyzed, the velocity distribution field of the round turbulent jet is discussed theoretically and simulated. Based on the pressure balance principle, a mathematical model is established for the jet velocity at the fluid nozzle, which enables the grinding fluid to pass through the high speed airflow and enter into the contact area. According to the analysis of the grinding fluid velocity in the jet core, an engineering formula is given to calculate the position limit of nozzle during grinding process, as well as a practical design example for the high speed grinding machine is presented.
Super-high speed point grinding Effective grinding fluid Velocity field Fluid jet Nozzle
Shichao Xiu Jiman Luo Zhili Sun
School of Mechanical Engineering and Automation, Northeastern University, China School of Traffic and Mechanical Engineering, Shenyang Jianzhu University, China
国际会议
广州
英文
452-457
2010-11-05（万方平台首次上网日期，不代表论文的发表时间）