Energy-based Beta Peak Extraction from Dynamic Resistance Curves

Recently, the importance of welding monitoring is emerging, and in particular, many studies using characteristic values dynamic resistance curves are being conducted. Among values, β-peak, peak on curve, contains important information extent to which nugget grows. A common way extract β-peak determine local maximum point followed by minimum curve. However, for where extremum unclear, extracting this manner difficult. Therefore, study, a method heating energy extraction was proposed. Heating used until reached. Typically does not significantly differ even if conditions same material. Based results, curve without clear extracted, 11 were calculated. them, three that had high correlation with diameter selected. Using these predicted through linear regression analysis.