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Spektralno opazovanje laserskega varjenja različnih materialov
ID Mekuč, Jan (Author), ID Jezeršek, Matija (Mentor) More about this mentor... This link opens in a new window

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Abstract
Določanje globine prevaritve pri laserskem prekrivnem varjenju je pomembno za doseganje čim kvalitetnejših varov. Ker pa to ni trivialno, smo iskali metodo, s katero je bilo možno določiti prevaritev obeh materialov prekrivnega spoja. Z vlakenskim laserskim virom smo varili pločevine aluminija, bakra in jekla AISI 304, najprej posamično, potem pa še v prekrivnem stiku. Emisijo svetlobe plazme, ki je nastajala, smo zajemali s spektrometrom. Ugotovili smo, da ima vsak material značilen spektralni odziv in da je možno, ko sta spodnji material aluminij in jeklo, zaznati njuno prevaritev z metodo opazovanja spektra.

Language:Slovenian
Keywords:lasersko varjenje, spektrometer, prekrivno varjenje, spektralne linije
Work type:Final paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[J. Mekuč]
Year:2023
Number of pages:IX, 28 str.
PID:20.500.12556/RUL-149401 This link opens in a new window
UDC:621.791.725:535.243.2(043.2)
COBISS.SI-ID:170681347 This link opens in a new window
Publication date in RUL:07.09.2023
Views:1209
Downloads:67
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Secondary language

Language:English
Title:Spectral observation of laser welding of various materials
Abstract:
Determining the depth in laser overlay welding is important for achieving the highest weld quality. But since it is not trivial, we searched for a method, that would allow us to determine penetration of both materials in an overlap joint. Aluminum, copper and AISI 304 steel were welded with a fiber laser source, first individually and then in overlapping contact. The resulting plasma light emission was recorded with a spectrometer. We have found, that each material has a typical spectral response and that when the underlying material is aluminum or steel, it is possible to detect their penetration by means of spectral observation.

Keywords:laser welding, spectrometer, overlap joint, spectral lines

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