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South African Journal of Industrial Engineering
versión On-line ISSN 2224-7890
versión impresa ISSN 1012-277X
Resumen
KOUPRIANOFF, D.. Investigation of acoustic emission signal during laser powder bed fusion at different operating modes. S. Afr. J. Ind. Eng. [online]. 2021, vol.32, n.3, pp.279-283. ISSN 2224-7890. http://dx.doi.org/10.7166/32-3-2663.
The increased use of metal additive manufacturing in production components makes quality control essential. The performance of parts produced by laser powder bed fusion depends on optimal process-parameters and the careful selection of scanning and building strategies for complex parts. In-situ acoustic emission provides a suitable solution for directly monitoring the laser powder bed fusion process during manufacturing. This paper shows the effect of different melting modes on the sound pressure and frequency spectrum during the laser powder bed fusion process. The results present valuable information for online monitoring development.