Power spectra of roughness caused by grinding of metals

The roughness of metallic surfaces generated by machining depends on the in tended intervention by the tool and the inadvertent consequences determined by the response of metals. The roughness generated in four different metal s by grinding is studied using the power spectrum method. It was found that the level of power is determined by the intended intervention such as the depth of cut and, to some extent, by hardness because of its possible influ ence on micropileup geometry. The power gradient is, however, influenced by inadvertent damage which may be related to material properties such as the rmal conductivity and adhesion.