Metal grinding is a machining process that uses hard abrasive particles of various sizes and densities as a cutting medium to achieve smoothness and accuracy of a blank or a workpiece to predefined requirements. Various imperfections produced by other machining methods such as weld residues, scratches and other types of roughness can be removed in this process.
Metal polishing is a type of very fine surface grinding, where both chemical and thermal processes are carried out simultaneously, using very fine abrasives and polishing pastes.