電極チップ間抵抗による溶接部通電路面積のリアルタイム計測 : 抵抗スポット溶接部の品質保証のための適応制御システムの研究(第1報)

概要

論文の詳細を見る
Real time measurement of the current path area of resistance spot welds is made at the middle and final periods of weld time on the foundation of physical information involved in the resistance between electrode tips, so as to construct new adaptive control systems for automatic quality assurance of spot we1ds in real time. Difference on physical meaning of the resistance and the voltage between electrode tips is shown theoretically and experimentally using R type and CF type electrode tips with different size in spot welding of thin mild steel sheet, that is, the resistance mainly involves information on current path area in spot weld and the voltage involves that on heat generation in unit volume at current path part and is not related to the current path area. Furthermore, the current path area of spot weld can be measured in real time at the middle and final period of weld time by the resistance between electrode tips, computed from the voltage between electrode tips and weld current in welding process.
社団法人溶接学会の論文
1984-05-05