Recent Research Trend of Resistance Spot Welding Quality Monitoring Technology in Korea

Resistance spot welding is a simple process with high speeds and one of the most economical productive processes. It applied in various industries such as automobile, aircraft, home appliance; thus, demand for monitoring quality increasing. Owing to nature resistance process, there are several factors that can be monitored, dynamic value, which determined using current voltage measurements, displacement electrodes, indentation occurs after welding. These features monitored cameras, LVDT sensors, deep learning techniques used predicting weld quality. In this paper, we introduced recent trends Korea sensors techniques.