A Simulation Analyze of Abrasive Jet Polishing Based on Negative Pressure Cavitation Effect
A novel method of fluid polishing with micro abrasives based on the negative pressure cavitation (NPC) effect is proposed.The atmospheric pressure environment is replaced by a negative pressure container to enhance the cavitation and erosion force of micro abrasives fluid.Micro abrasive jet polishing (AJP) process and the removal mechanism based on NPC effect are studied.The influences of technological parameters, such as injection pressure, abrasive concentration, standoff distance, inclination angle, on the shear force are analyzed and simulated by using the multiphase flow model of Fluent software.The analytical results show that the micro AJP based on NPC effect can get the better surface quality of the optical components, but the excessive vacuum will weaken the cavitation effect and make the surface roughness worse.
Abrasive jet polishing negative pressure cavitation cavity micro abrasive Fluent simulation
Fengjun Chen Yu Tang Shaohui Yin
National Engineering Research Center for High Efficiency Grinding, Hunan University Changsha 410082, CZ-HNU Institute of Machinery Equipment, Changzhou 213164, China
国际会议
长沙
英文
134-139
2016-11-04（万方平台首次上网日期，不代表论文的发表时间）