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Multi sensor monitoring  of the wire-melt pool interaction inhot-wire directed energy deposition using laser beam
University West, Department of Engineering Science, Division of Production Systems. (KAMPT)ORCID iD: 0000-0002-2527-1048
University West, Department of Engineering Science, Division of Production Systems. (KAMPT)ORCID iD: 0000-0002-8018-6145
University West, Department of Engineering Science, Division of Production Systems. (KAMPT)ORCID iD: 0000-0001-5734-294X
University West, Department of Engineering Science, Division of Production Systems. Physics Department, University of Bari, Bari (ITA). (KAMPT)ORCID iD: 0000-0002-6247-5429
2023 (English)In: IOP Conference Series: Materials Science and Engineering, IOP Publishing , 2023, Vol. 1296, p. 1-11, article id 012011Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

This study investigates the combination of three sensors to improve in-process monitoring of the liquid bridge between the feedstock wire and melt pool in hot-wire Directed Energy Deposition using Laser Beam. The stability of the deposition process relies on the transfer of metal between the molten feedstock wire and melt pool. Therefore, monitoring the condition of the liquid bridge and the interaction between the feedstock wire and melt pool is crucial. By utilizing a laser-optics-integrated visible range optical spectrometer and electrical sensors measuring voltage and current, relevant process changes and indications of instabilities were detected. Combined information from the current sensor and the spectrometer provided a better understanding of the process and helped to identify deviations leading to unstable deposition modes.

Place, publisher, year, edition, pages
IOP Publishing , 2023. Vol. 1296, p. 1-11, article id 012011
Keywords [en]
wire-melt, laser beam, multi sensor monitoring
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-20863DOI: 10.1088/1757-899X/1296/1/012011OAI: oai:DiVA.org:hv-20863DiVA, id: diva2:1837892
Conference
NOLAMP 19th Nordic Laser Material Processing Conference 22-24 August 2023 Turku, Finland
Funder
Swedish Research Council, SAMw [20170060]Vinnova, InAIRwire [2019-02752]
Note

CC BY 3.0

Available from: 2024-02-15 Created: 2024-02-15 Last updated: 2024-02-15

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Kisielewicz, AgnieszkaMi, YongcuiSikström, FredrikAncona, Antonio

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