Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
ARC Welding of dissimilar metals: FEA and experiments in case of copper - carbon steel joints
Year:2009
Research Areas
  • Mechanical engineering,
  • Construction materials
Information
Abstract
Assuming an elliptical disk heat source, several results of theoretical and experimental investigations on heat transfer in copper - low carbon steel, welded join is are presented in the first part of the paper. Using thin sheets, temperature variation in the thickness direction is negligible and heat flow is considered two-dimensional. Convection and radiation influence, and thermo-physical properties depending on the temperature are considered in the model. Measurements and visualization of the temperatures distribution have been made during welding using infrared thermography. The proposed theoretical method using finite element analysis was validated for the temperatures prediction in the welded joint. In the second part of the paper, the influence of the welding process on the structural modifications and grains' size in the heat affected zone (HAZ) of both base materials (BM) is described Discussion on the graphs of temperatures variation vs. microstructural analysis enables conclusions on the potential undesired structural changes and related preventing measures. The asymmetric position of the heat source closer to the material having a higher thermal conductivity is an effective method for controlling the temperature field.
International
Si
JCR
No
Title
Metalurgia International
ISBN
1582-2214
Impact factor JCR
0
Impact info
Volume
14
Journal number
7
From page
33
To page
37
Month
JUNIO
Ranking
Participants
  • Participante: E. SCUTELNICU (Robotics and Welding Department, Dunarea de Jos University of Galati, Romania)
  • Autor: Mihaela Iordachescu (UPM)
  • Autor: Danut Iordachescu . (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
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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