Research on the fractal of surface topography of grinding

Abstract Fractal theory is widely used in analysing the topography of machined surfaces. In this paper, the formula that describes the relation between the fractal dimension D and Ra or Rq or Sm of surface roughness of different ground surfaces is obtained by measuring ground surfaces and researching the fractal features of them. Using a computer, a theoretical basis is built for the fractal simulation of the ground surface.