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  4. Laser beam welding of additive manufactured components: Applicability of existing valuation regulations
 
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2022
Journal Article
Titel

Laser beam welding of additive manufactured components: Applicability of existing valuation regulations

Abstract
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 extent existing evaluation rules of joint welding are also suitable for welds on additive components. This is investigated using laser beam welding of additively manufactured pipe joints. The welds are evaluated by means of visual inspection, metallographic examinations as well as computed tomography. The types of defects found are comparable to conventional components. This is an indicator that existing evaluation regulations also map the possible defects occurring for weld seams on additive components.
Author(s)
Jokisch, T.
Siemens Energy Global GmbH
Gook, Sergej
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK
Marko, Angelina
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK
Üstündağ, Ömer
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK
Gumenyuk, A.
Federal Institute for Materials Research and Testing Berlin
Rethmeier, Michael
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK
Zeitschrift
Welding and cutting
Thumbnail Image
DOI
10.53192/WAC202202109
Language
English
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Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK
Tags
  • additive manufacturing

  • laser beam welding

  • weld imperfection

  • weldability

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