Surface Roughness Data from Laser Polishing Additively Manufactured Co-Cr Alloy
24 different surface texture parameters were calculated from additively manufactured Co-Cr surfaces (as printed and after laser polishing) varying 5 different laser polishing parameters.
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Three-dimensional surface scans taken with a confocal microscope (Keyence, VK-9710) with a 50× objective and scan size of 285 µm by 213 µm. A Z-step size of 100 nm was used for all scans. Each of the 108 laser polished areas was scanned three times with the confocal microscope, which led to a total of 324 laser polished surface scans. The location of those three scans were consistent in each laser polished area. The as-printed material was scanned in three separate, consistent places across each of the six experimental blocks for a total of 18 as-printed measurements. The surface texture parameters were calculated from scans using the microscope manufacturer’s analysis software (Keyence, VK Analyzer) in accordance with ISO 25178. The mean plane of the surface was removed before analysis. An S-filter of 0.8 µm was used to remove small wavelength features, and an L-filter of 250 µm was used to separate waviness from the surface.