Authors:Ivan Samardžić, Zvonimir Kolumbić, and Štefanija Klarić
The application of stud arc welding process is well known in various manufacturing fields and civil engineering due to simplicity of application, short welding time and cost efficiency. In this paper, application of on-line monitoring of main welding parameters (welding current and voltage) is used in the examination of process stability during stud arc welding with ceramic ferrule. The goal of this experimental work is to make the best choice of monitored welding parameter to assure the high quality of arc stud weld joint. So, the applicability of stability evaluation methods usually used in MAG (Metal Active Gas) welding process is analyzed for stud arc welding application. The connection between stability of stud arc welding process and weld quality is evaluated through macro section analysis of the welded joints.
Authors:Štefanija Klarić, Željko Rosandić, and Andrijana Milinović
In this paper, the influence of two selected parameters (the welding time and the presence of the activating flux on the surface of the base metal) on the weld joint at Stud Arc Welding process is investigated. In the experimental part of the paper, the drawn arc stud welding process with the ceramic ferrule is applied with the different welding time and the application of the activating flux for ATIG process. In order to evaluate the influence of the welding time and the activating flux on the weld characteristics, the cast zone width and Vickers hardness HV 0.2 are measured.