Open AccessApplication of Laser Welding in Car Bodies Manufacturing
Author(s) -
Ján Viňáš,
Janette Brezinová,
Jakub Brezina,
Pavlo Maruschak,
S. V. Panin
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/731/1/012005
Subject(s) - welding , materials science , laser beam welding , indentation hardness , ultimate tensile strength , composite material , laser , metallurgy , optics , microstructure , physics
The paper deals with a problem of laser welding of zinc-coated steel (DX53D+Z and DX54D+Z) plates. Experiments were carried out with the use of steel plates 0.8; 1.0; 1.3; and 1.75 mm thick. High power 2.5-2.9 kW CO 2 laser was employed. CO 2 was used as the shielded gas. The optimal parameters of welding for material under study were determined. The mechanical properties of welded joints were measured through the tensile loading and microhardness measurement. Tensile performances of the specimens fabricated at different welding rate and laser beam power were compared with that of the base material.