Research on the mathematical model of fluid jet polishing

Abstract

A novel polishing and shaping process called fluid jet polishing (FJP) is introduced in this paper. Different from classical polishing methods, the material is removed by collision and shearing actions between the abrasive particles and the work piece in FJP, and the classical Preston Equation does not represent the polishing process correctly. It is necessary to establish a new mathematical model to do this. By using monofactorial experimental method, the important process parameters of FJP including working pressure, processing time and the rotational speed of the work piece were investigated in experiments. Based on the experimental results, the expressions between the important process parameters and the amount of removed material were constructed through data fitting. And then we put forward a new mathematical model to describe the polishing process of FJP, and control the amount of removed material quantitatively. The construction of this equation is a theoretical basis to realize numerical controlled fluid jet polishing, and foundation of applying this technology to modern optical fabrication