Analysis of the Metal Vapour during Laser Beam Welding
β Scribed by S. Huber; J. Glasschroeder; M.F. Zaeh
- Publisher
- Elsevier
- Year
- 2011
- Tongue
- English
- Weight
- 452 KB
- Volume
- 12
- Category
- Article
- ISSN
- 1875-3892
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The weld metal with high strength and good toughness was obtained for medium thickness microalloyed steel by using high power laser hybrid welding technology. Mechanical properties of weld metal were evaluated by using room temperature tensile test and low temperature three-side Charpy V-notch (CVN)
Collision frequency Temperature Mass of electron Bohr's radius of hydrogen atom Total cross-section Velocity Cut-off ratio Permittivity of free space Electron number density Neutral atom number density Absorption coefficient Gaunt factor Ionization potential Effective collision frequency Inelastic c
A mathematical model for the simulation of characteristic weld pool phenomena during deep penetration laser beam welding based on a numerical solution of the conservation equations of energy, momentum and mass is presented. The modelling is carried out in dimensionless form and the various melt pool