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http://dx.doi.org/10.5781/KWJS.2010.28.5.099

Optimization of Fuzzy Controller for Constant Current of Inverter DC Resistance Spot Welding Using Genetic Algorithm  

Yu, Ji-Young (Dept. of Mechanical Engineering, Hanyang University)
Yun, Sang-Man (Dept. of Mechanical Engineering, Hanyang University)
Rhee, Se-Hun (Div. of Mechanical Engineering, Hanyang University)
Publication Information
Journal of Welding and Joining / v.28, no.5, 2010 , pp. 99-105 More about this Journal
Abstract
Inverter DC resistance spot welding process has been very widely used for joining such as automotive body sheet metal. Because the lobe area of DC welding is larger than AC welding and DC welding has low electrode wear. So the use of Inverter DC resistance spot welding process has been further increased. And the application of high tensile steel is growing for light weight vehicle. To improve the weldability of high strength steel, the development of Inverter DC resistance spot welding system is more conducted. However, Inverter DC resistance spot welding system has a few problems. Current waveform is unstable and the expulsion has been occurred by characteristics of steel. In this study, inverter DC resistance spot welding system was made. And Fuzzy control algorithm was applied for constant current. The genetic algorithm was applied to optimize the fuzzy scaling factors, in order to optimize the fuzzy control.
Keywords
Resistance spot welding; Fuzzy control; Genetic algorithm; Constant current; Scaling facto;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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