Resistance welding: Numerical modelling of thermomechanical and metallurgical conditions

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2003

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Resistance welding comprises not only the well known spot welding process but also more complex projection welding operations, where excessive plastic deformation of the weld point may occur. This enables the production of complex geometries and material combinations, which are often not possible to weld by traditional spot welding operations. Such joining processes are, however, not simple to develop due to the large number of parameters involved. Development has traditionally been carried out by large experimental investigations, but the development of a numerical programme system has changed this enabling prediction of the welding performance in details. The paper describes the programme in short and gives examples on industrial applications. Finally investigations of causes for failure in a complex industrial joint of two dissimilar metals are carried out combining numerical modelling and metallographic investigations. These investigations show that it is possible to explain/predict harmful metallurgical phase transformations caused by electrode wear, which influences the weld quality.
Original languageEnglish
Title of host publicationMetalliske Konstruktionsmaterialer – processer, egenskaber, anvendelse
EditorsM. Somers
PublisherDansk Metallurgisk Selskab
Publication date2003
Pages87-99
StatePublished

Conference

ConferenceDansk Metallurgisk Selskabs Vintermøde 2003
CountryDenmark
CityFredericia
Period08/01/0310/01/03
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