Abstract
The continuous control of the laser power during the welding operation would avert welding defects linked with objects in the optical path (dust) or with slow deterioration in the optical components. The use of a partially reflecting slide with a high reflection coefficient permitted the measurement of power variations of ±0.5 per cent during the welding process. Analysis of the signal obtained would allow a closed-loop power regulation by feedback to the laser power command input. To be suitable for short-duration laser welds, it would be necessary to lower the response time by using faster power detectors.
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Schedule a callMore From: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
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