Application and Upgrading of On-line Monitoring System for Measurement and Processing of Electric Signals at Arc Stud Welding Process
As the application of on-line monitoring system is shown to be a good solution during monitoring of main welding parameters at different welding processes, this paper describes application and upgrade of on-line monitoring system developed at Mechanical Engineering Faculty in Slavonski Brod. Experimental part of the paper shows application of on-line monitoring system during welding of two types of studs with application of activating flux for ATIG process (VS-2E) on the base metal surface. Monitoring of main welding parameters (welding current and voltage) was conducted during welding of studs usually used in steam boiler production (stud diameter: 10 mm), and welding voltage was monitored on the studs (shear stud) of 22 mm diameters used in bridge construction. The goal of monitoring and analyse of main welding parameters is to evaluate the connection of electric arc parameters variations with the presence of activating flux.
Application and Upgrading of On-line Monitoring System for Measurement and Processing of Electric Signals at Arc Stud Welding Process
As the application of on-line monitoring system is shown to be a good solution during monitoring of main welding parameters at different welding processes, this paper describes application and upgrading of an on-line monitoring system developed at the Mechanical Engineering Faculty in Slavonski Brod. The experiment described in the paper shows application of an on-line monitoring system during welding of two types of studs with application of activating flux for ATIG process (VS-2E) on the base metal surface. Monitoring of the main welding parameters (welding current and voltage) was conducted during welding of studs usually used in steam boiler production (stud diameter: 10 mm), and welding voltage was monitored on the studs (shear stud) of 22 mm diameters used in bridge construction. The goal of monitoring and analysis of main welding parameters is to evaluate the connection of electric arc parameters variations with the presence of an activating flux.
Study of shielding gas and filler material influence on MAG welding process stability - an application of the developed on-line monitoring system
Process stability is one of the base selection criteria for filler material, shielding gas and optimal welding parameters of the MAG welding. In order to determine influence of filler material and shielding gas selection, computer supported on-line acquisition and processing of main welding parameters (welding voltage and welding current) was performed using developed on-line monitoring system. Besides, during MAG welding process, audible sound signals were monitored. Two types of shielding gas were used: (a) carbon-dioxide and (b) gas mixture of argon (82%) and carbon-dioxide (18%). Welding process was performed with solid and basic flux cored wires. This paper presents results attained by analyse of collected data for MAG welding voltage and welding current, as well as welding process sound signals. Final results are shown in appropriate diagrams: moving average values distribution of welding parameters, as well as welding voltage, welding current and sound signals amplitude as a function of the time.