The paper analyzes changes in the mechanical properties of the welded joints of steel S355J2 (LST EN 10025) using vibration energy method during welding done by applying semi automatic equipment under CO₂ environment using supplementary wire ESAB OK 12.51. When welding, several levels of vibration energy are applied. For vibration treatment, proprietary equipment “MetaLax 2725” produced by the U.S. Company “Bonal” was employed. To investigate the effects of vibration energy on the weld seam, radiographic control and mechanical experiments on tensile, hardness distribution and impact resistance were performed.

Article in Lithuanian