Open AccessAn axi-symmetric thermo-hydraulic model to better understand spot laser welding
Author(s) -
Marc Médale,
Charline Touvrey,
R. Fabbro
Publication year - 2008
Publication title -
european journal of computational mechanics
Language(s) - English
Resource type - Journals
eISSN - 2642-2085
pISSN - 2642-2050
DOI - 10.13052/remn.17.795-806
Subject(s) - spot welding , hot spot (computer programming) , welding , mechanical engineering , reflection (computer programming) , laser , energy (signal processing) , deposition (geology) , computer science , mechanics , structural engineering , engineering , optics , physics , geology , paleontology , quantum mechanics , sediment , programming language , operating system
The aim of this study is to better understand the basic mechanisms leading to possible defect occurrence in spot laser welding. For that purpose we have developed a numerical model, which takes into account the key-hole dynamics together with a dedicated energy deposition model featuring the multiple reflection effects. Many experiments have also been achieved enabling us to report several defect classes. The analysis of some of these scenarios have been performed and favourably compared to experiments.