Abstract
Investigations on application of laser for manufacturing and remanufacturing have been extensively progressed since its advent in 1960. The rapid development of laser technologies in the past half-century has made many laser-based direct-energy processes possible and, nowadays, most of such laser-processing techniques are about entering industrial applications. An application of laser-cladding (LC) for remanufacturing turbine blades can save the cost by over 75%. Laser treatment, on the other hand, making use of direct laser-matter interactions, has been recognized as a green surface-cleaning technique for metal alloys, which may also introduce surface integrity enhancement for additively manufactured alloys. Here, we present and discuss recent progress in laser-based process through a few typical cases that have been recently developed in our group towards advanced remanufacturing of metallic alloys, typically including LC, laser treatment, and laser-shock peening.
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