20 February 2018 Continuous and pulsed laser high power beam combiner for additive manufacturing applications
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Abstract
Laser-based additive manufacturing (AM) from metal powders is emerging as the new industrial revolution, although current fabrication approaches still require long mechanical post-processing to improve the final surface quality and meet the design tolerances. To overcome this limitation, the next generation machines are expected to complement laser AM with laser ablation (LA) to implement surface finishing and micro texturing already during the device growth process. With this aim, a new beam combiner to allow the real-time interchange of additive and subtractive processes using the same scanner head has been designed. Extensive tests have been carried out using a 6 kW continuous-wave laser similar to that used for the metal powder fusion and a nanosecond 100W pulsed source similar to that used for laser ablation.
Conference Presentation
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Marta Bassignana, Marta Bassignana, Alessio Califano, Alessio Califano, Francesco Pescarmona, Francesco Pescarmona, Andrea Braglia, Andrea Braglia, Guido Perrone, Guido Perrone, } "Continuous and pulsed laser high power beam combiner for additive manufacturing applications", Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 1051312 (20 February 2018); doi: 10.1117/12.2290291; https://doi.org/10.1117/12.2290291
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