Investigation Of Topography Changes Of Blasted Surfaces: An Experimental Perspective Using Fiducial Markers

Abrasive blasting is a process that intentionally modifies surface topography to meet specific functional requirements. The blast media is accelerated and interacts directly with the surface through impact. It is evident that the number of impacts and the overlap increase with time. This study aims to investigate these alterations to surface topography through repeated examinations of the same location. A methodology has been developed that employs the use of fiducial markers, which are protected during blasting by a custom 3D-printed cover. This method was used to observe changes in the topography of smooth and rough initial surfaces that had been blasted. Furthermore, the evolution over time has been analysed. It is evident that the developed method has enabled these alterations to be observed.