Ingenieurwissenschaften und zugeordnete Tätigkeiten
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- 2023 (1) (entfernen)
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- Russisch (1) (entfernen)
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- Laser beam welding (1)
- Mathematical modeling (1)
- Plane crystalization (1)
- Superellipse (1)
- Thin steel plates (1)
Organisationseinheit der BAM
It is proposed to model the experimentally observed weld pool boundary with superellipses (Lamé curves) and to find the unknown parameters of the curves using optimization methods. It has been shown experimentally that during laser welding of austenitic stainless steel with a thickness of 2 mm at a speed of 20 mm/s, the rear weld pool part has a shape close to triangular which can be accurately approximated by a superellipse. Analytical dependences of the trajectory and growth rate of the crystal and its cross-sectional area on the geometry of the rear weld pool part are obtained.