MONITORING FOR CRACKS IN METAL L-PBF USING GAS-BORNE ACOUSTIC EMISSION
South African Journal of Industrial Engineering, ISSN: 2224-7890, Vol: 34, Issue: 4, Page: 147-154
2023
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Studies from Central University of Technology Update Current Data on Industrial Engineering (Monitoring for Cracks In Metal L-pbf Using Gas-borne Acoustic Emission)
2024 MAR 22 (NewsRx) -- By a News Reporter-Staff News Editor at Computer News Today -- Current study results on Engineering - Industrial Engineering have
Article Description
Delaminations and cracks are detrimental phenomena that hinder the quality of the final product in metal additive manufacturing. The effective use of other online monitoring systems that can detect these deformations and delaminations during the manufacturing process is currently being developed and implemented in practice. In this paper, gas-borne acoustic emission is used to show that cracks/delaminations that occur during the metal laser powder bed fusion build process can be detected and distinguished from other machine noise. The peaks in the amplitude of the signal emitted in the time domain could be used to indicate the occurrence of cracks during the build process. The frequency characteristics of the signal could also clearly indicate the occurrence of the macro cracks and differentiate between the signals from the cracks and the machine noise.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85179889039&origin=inward; http://dx.doi.org/10.7166/34-4-2981; https://sajie.journals.ac.za/pub/article/view/2981; http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2224-78902024000100012&lng=en&tlng=en; http://www.scielo.org.za/scielo.php?script=sci_abstract&pid=S2224-78902024000100012&lng=en&tlng=en; http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2224-78902024000100012; http://www.scielo.org.za/scielo.php?script=sci_abstract&pid=S2224-78902024000100012; http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2224-78902023000400012&lng=en&tlng=en; http://www.scielo.org.za/scielo.php?script=sci_abstract&pid=S2224-78902023000400012&lng=en&tlng=en; http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2224-78902023000400012; http://www.scielo.org.za/scielo.php?script=sci_abstract&pid=S2224-78902023000400012; https://dx.doi.org/10.7166/34-4-2981
Stellenbosch University
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