ABSTRACT
ABSTRACT: The surface topography of shearing marks is studied by using the fractal theory. The irregularity and random distribution of the surface topography shows the fractal characteristics. The data of the surface topography of shearing marks are collected digitally by using surface topography tools, and the fractal dimensions are calculated. The result shows that surface topography of shearing marks and fractal dimensions are different when metallic materials are sheared by different tools. Therefore, the fractal dimensions can be used as a characteristic index to describe the surface topography of shearing marks. It can help analyze the characteristics of surface topography of shearing marks effectively. It can also provide a reference for the judgment of shearing tools. It is a new method of quantitative inspection of shearing marks.
