On the numerical treatment of heat sources in laser beam welding processes

Abstract: Laser beam welding is a contact free fusion technique which has gained importance during the last years due to rising need for automatization in industrial processes. However, a well‐known problem is the formation of solidification cracks in the rear region of the melting pool. In order to investigate the formation of solidification cracks which is highly dependent on the chemical composition, the welding speed, weld beam intensity and the resulting temperature gradient in the material, the modeling of the laser beam as a heat source plays a prominent role. In order to investigate heat sources in laser beam welding, this contribution compares two methods, the Goldak model and a second model that mimics the region of the melt pool with the idea of an isothermal region. Suitable boundary value problems to show the differences of the methods are demonstrated.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
On the numerical treatment of heat sources in laser beam welding processes ; volume:23 ; number:1 ; year:2023 ; extent:6
Proceedings in applied mathematics and mechanics ; 23, Heft 1 (2023) (gesamt 6)

Creator
Hartwig, Philipp
Scheunemann, Lisa
Schröder, Jörg

DOI
10.1002/pamm.202200220
URN
urn:nbn:de:101:1-2023060115143964557753
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:48 AM CEST

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Associated

  • Hartwig, Philipp
  • Scheunemann, Lisa
  • Schröder, Jörg

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