Abstract
This paper gives a description of an experimental study of ultrasonic welding of 20% cold-rolling A1050 sheet which thickness is 0.1 to 0.40mm and anodized aluminum. Consequently, although the ultrasonic vibration output increased with increasing of required duration in the early time, the ultrasonic vibration output declined rapidly with interface vibration fixation. This interface fixed time increased with the increase in Al sheet thickness. And the anodized aluminum by 80V for 1hr in oxalic acid solution (4℃, 4mass% ), it can weld without spoiling the electric insulation of the anodic oxide film.
