Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Peculiarities of black & white welded joints of thin sheets
Year:2009
Research Areas
  • Mechanical engineering,
  • Construction materials
Information
Abstract
The paper presents the main results of investigations addressing welding of Black and White Joints (BWJ) of low carbon steel (CS) and stainless steel (SS) thin sheets, which are of increasing interest for industry due to costs saving and satisfactory service performance. First, thermal field modeling was approached by considering Goldak¿s double ellipsoidal heat source, together with a contribution of the authors related to the shape coefficients. In case of thin sheets, the source influence in the thickness direction was neglected, and a 2D FEM-based model for predicting the heat flow in case of arc welding of CS and SS thin sheets was developed. In parallel, a second experimental investigating direction has addressed the technological development of BWJ arc welding, and laser hybrid welding, respectively. Third, various investigating methods were used on the achieved BWJ. Detailed macro and microstructural examination, hardness and tensile tests were also performed for in deep understanding the processing temperature influence. The investigations are ongoing for laser hybrid welding by developing a 3D FEM model, on one hand, and defining parametrical operational windows, on the other; further reports are expected.
International
Si
Congress
1 st International Conference on Manufacturing Engineering (MEQAPS 09)
960
Place
Rumania
Reviewers
Si
ISBN/ISSN
978-960-474-121-2
Start Date
24/09/2009
End Date
26/09/2009
From page
118
To page
123
Peculiarities of black & white welded joints of thin sheets
Participants
  • Participante: E. SCUTELNICU (Robotics and Welding Department, Dunarea de Jos University of Galati, Rumania)
  • Autor: Danut Iordachescu . (UPM)
  • Autor: Mihaela Iordachescu (UPM)
  • Autor: Manuel Blasco Litago (UPM)
  • Autor: Jose Luis Ocaña Moreno (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
  • Centro o Instituto I+D+i: Centro Laser
  • Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
  • Departamento: Ciencia de los Materiales
  • Departamento: Física Aplicada a la Ingeniería Industrial
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