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http://dx.doi.org/10.5781/JWJ.2016.34.3.40

Short Circuit Waveform Control Type SMAW Welding Power Source Development and Characteristic Evaluation  

Yang, Hyun-Min (Joining R&D Group, KITECH)
Ryoo, Hoi-Soo (Joining R&D Group, KITECH)
Hyun, Soong-Keun (School of Materials Science & Engineering, Inha University)
Publication Information
Journal of Welding and Joining / v.34, no.3, 2016 , pp. 40-46 More about this Journal
Abstract
The digital controlled SMA welding power source having the hot start current and short circuit waveform control was developed. The inverter power controller was used an analog circuit and the short circuit waveform controller was developed using a 8-bit MCU. For the evaluation of the developed SMA welding power source it were compared with a domestic welding power sources. Using the high titanium oxide type and low hydrogen type electrodes, the characteristics of hot start and short circuit was evaluated. Developed SMA welding power source shows good start performance. Also, arc stability and low current weldability were improved by the short circuit waveform control.
Keywords
SMAW; Short circuit control; Low current weldability; Hot start; Waveform control;
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