Evaluation of mechanic polishing on steel using optic interferometry
Abstract
An important part for the application of electrochemical processes on metals is an adequate surface preparation; this is crucial to obtain accurate and reliable results. This is why several surface preparation methods are used, among which mechanical polishing is presented as a safe and low-cost alternative. This method involves the use of physical tools and abrasives to remove imperfections on the metal surface, such as grinding lines, scratches, manufacturing defects and pitting. However, not all mechanical polishing processes are the same, and it is important to determine the irregularities present on metal surfaces. For this purpose, various surface measurement
and analysis techniques can be used, most notably the Michelson interferometer with red monochromatic light. This tool allows the measurement of surface irregularities, as well as the determination of polish quality and uniformity.
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