Deep Drawing with Ultrasonic Vibration

Abstract

In this paper, we described deep drawing that entailed ultrasonic vibration. The deep drawing method described uses with a punch, a die and a tool of blank holder. In this study, a metal mold through which a die exhibited longitudinal vibration was produced experimentally. A bolt-clamped Langevin-type transducer vibrator was used as the source of vibration. Using this manufactured metal mold, the decrease in the largest deep-drawing load and the improvement in the limiting drawing ratio were compared and examined with usual restrictions. It was also used for general purposes and restrictions and for deep-drawing cold-rolled steel sheets as processed materials. The result showed that the maximum load decreased, but no improvement in the limiting drawing ratio could be observed.