著者

青木 隆行 宮内 邦雄 西村 光彦 中村 和彦

出版者

The Japan Society for Technology of Plasticity

雑誌

塑性と加工 (ISSN:00381586)

巻号頁・発行日

vol.48, no.555, pp.308-312, 2007

被引用文献数

1

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A both-sided ironing process for simultaneous ironing of the outer and inner wall surfaces of deeply drawn cans has been developed successfully. The new process produces ring grooves in the can wall by vibrating the inner die along the ironing direction. The up-and-down motion of the inner die changes the ironing condition between the inner die and the outer die to continuously form ring grooves in the wall of ironed cans. The frequency of the vibration of the both-sided ironing process is set at about 4∼6 c⁄min. The profile of ring grooves in the ironed can wall is found to be influenced by the height difference between the outer and inner dies and the amplitude of the vibration. In particular, the greater the amplitude of vibration, the greater the depth of the ring grooves. The bent part of the ring grooves formed by the both-sided ironing process using vibration is the unique point of lowest strength. An ironed can with ring grooves in the wall can be easily squashed by a relatively small force.