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Measuring Surface Features With High Resolution in Factory Environments

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ERIK NOVAK AND MIKE ZECCHINO, 4D TECHNOLOGY CORP.

Small-scale surface features, whether desired — such as laser marking and dot peening — or unintended — such as scratches, nicks, dents, pitting, edge break and local curvature — can greatly affect the value, performance and lifetime of critical components. Portable roughness gages are able to quantify surface roughness on the shop floor. Coordinate measurement machines, stereoscopes and laser line scanners can examine overall shape. But to date, it has not been possible to measure small features with high resolution on the shop floor. A new measurement...Read full article

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