OCT for Industrial Laser Welding

Together with the industrialization of OCT for laser welding, the development of industrial solutions for sequential online pre-, in- and post-process control with OCT are ongoing. An essential development attempt is a use the OCT keyhole depth data for closed-loop laser power control to keep the weld depth constant.
All the potential merits of OCT and the three-dimensional nature of the OCT data makes OCT in many respects superior to the traditional technologies. It empowers high productive and flexible production line layouts with increased volume of produced components. OCT makes welding in series production faster, more accurate, and thus more cost-effective than currently achievable with today’s conventional sensor technology.

Journal of Japan Laser Processing Society, Vol. 28, No. 2, June 2021, p. 19


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