Mathematical Model of Hydrodynamic Fluid Pressure on Smooth and Real Surface
Conventional method of flood delivering coolant fluid by a nozzle in order to achieve high process performance. However, hydrodynamic fluid pressure can be generated ahead of the contact zone due to the wedge effect between wheel peripheral surface and work surface. In the paper, theoretical hydrodynamic pressure modeling were presented for flow of coolant fluid through the grinding zone in flood delivery grinding using smooth and roughness surface grinding wheel respectively. The simulation results show that the hydrodynamic pressure was proportion to grinding wheel velocity, and inverse proportion to the minimum gap between wheel and work surface and the maximum pressure value was generated just in the minimum gap region in which higher fluid pressure gradient occuring. It can also be concluded the surface roughness of grinding wheel and workpiece makes the contact zones hydrodynamic pressure rough and unstable, i.e. the value curve considering roughness is not smooth, leading to the micro-elastohydrodynamic lubrication phenomenon.
Hydrodynamic pressure Grinding Zone Model
Changhe Li Lili Wang Guoyu Liu
School of Mechanical Engineering, Qingdao Technological University, Qingdao 266033, China Inner Mongolia University for Nationalities, Tongliao 028042, China
国际会议
广州
英文
429-434
2010-11-05（万方平台首次上网日期，不代表论文的发表时间）