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When the welding torch is manually guiding, the influ-ence on the quality of the welded joint has a welder or welding operator in automatic or robotized welding. In both cases, due to negligence, ignorance or other objective reasons, there may be deviations from symmetry or source of heat – welding torch or deviations of the axis groove. That is the cause of unevenly heating of the groove side, the asymmetry of the heat impact zone and the welding seam cross-sectional have different mechanical, structu-ral and chemical properties. The asymmetricity of the amount of heat input leads to problems in the formation of welding seam and the occurrence of welding errors. Through the work, is analiyzed the influence of the transverse inclination of the MAG welding torch on the geometry of the root seam, represented by the proportion of the melted material of the groove edges. Rezime Kada se gorionik za zavarivanje ručno vodi, uticaj na kvalitet zavarenog spoja ima zavarivač ili zavarivač u automatskom ili robotizovanom zavarivanju. U oba slučaja, zbog nepažnje, neznanja ili drugih objektivnih razloga, može doći do odstupanja od simetrije ili izvora toplote za zavarivanje-gorionika ili odstupanja od ose žljeba.To je uzrok neravnomernog zagrevanja strane žljeba, asimetrije zone uticaja toplote i preseka šava koji imaju različita mehanička, strukturna i hemijska svojstva. Asimetričnost količine unesene toplote dovodi do problema u formiranju šava i do pojave grešaka u zavarivanju. Kroz rad se analizira uticaj poprečnog nagiba MAG gorionika za zavarivanje na geometriju korenog šava, predstavljen proporcijom rastopljenog metala ivica žljeba.

The influence of the tranverse inclination of the MAG welding torch on the geometry of the root seam