Thermal influence of welding process on strength overmatching of thin dissimilar sheets joints

Iordachescu, Mihaela and Ruiz Hervías, Jesús and Iordachescu, Danut and Valiente Cancho, Andrés and Caballero Molano, Luis (2010). Thermal influence of welding process on strength overmatching of thin dissimilar sheets joints. In: "CIFIE 2010, Iberian Conference on Fracture and Structural integrity", 17/03/2010 - 19/03/2010, Oporto, Portugal.

Description

Title: Thermal influence of welding process on strength overmatching of thin dissimilar sheets joints
Author/s:
  • Iordachescu, Mihaela
  • Ruiz Hervías, Jesús
  • Iordachescu, Danut
  • Valiente Cancho, Andrés
  • Caballero Molano, Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: CIFIE 2010, Iberian Conference on Fracture and Structural integrity
Event Dates: 17/03/2010 - 19/03/2010
Event Location: Oporto, Portugal
Title of Book: Proceedings of CIFIE 2010, Iberian Conference on Fracture and Structural integrity
Date: 2010
Subjects:
Freetext Keywords: Black & White Joint, laser hybrid welding, overmatching joint, hardness, tensile test
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The investigation addresses the overall performance of black and white joints (BWJ) of low carbon steel and stainless steel thin sheets achieved by laser hybrid welding. First, thermal field modelling is carried out by considering Goldak’s double ellipsoidal heat source model, together with a contribution of the authors related to the shape coefficients. In parallel, the technological development of BWJ laser hybrid welding is also addressed. Material characterisation by means of macro and microstructural examination and hardness tests is performed. The overall tensile performance of BWJ is discussed together with the weld metal strength overmatching. The tensile tests results indicate that in case of transversally loaded joints, the positive difference in yield between the weld metal and the base materials protects the weld metal from being plastically deformed; the flat transverse tensile specimens loading up to failure reveals large strains in low carbon steel, far away from the weld

More information

Item ID: 9195
DC Identifier: http://oa.upm.es/9195/
OAI Identifier: oai:oa.upm.es:9195
Official URL: http://paginas.fe.up.pt/~cifie/
Deposited by: Memoria Investigacion
Deposited on: 19 Oct 2011 09:42
Last Modified: 20 Apr 2016 17:42
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