Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Laser beam welding of additive manufactured components: Applicability of existing valuation regulations
    ( 2022)
    Jokisch, T.
    ;
    Gook, Sergej
    ;
    Marko, Angelina
    ;
    Üstündağ, Ömer
    ;
    Gumenyuk, A.
    ;
    Rethmeier, Michael
    With additive manufacturing in the powder bed, the component size is limited by the installation space. Joint welding of additively manufactured parts offers a possibility to remove this size limitation. However, due to the specific stress and microstructure state in the additively built material, it is unclear to what ex-tent existing evaluation rules of joint welding are also suitable for welds on additive components. This is in-vestigated using laser beam welding of additively manufactured pipe joints. The welds are evaluated by means of visual inspection, metallographic examina-tions as well as computed tomography. The types of defects found are comparable to conventional com-ponents. This is an indicator that existing evaluation regulations also map the possible defects occurring for weld seams on additive components.