塑性と加工
Online ISSN : 1882-0166
Print ISSN : 0038-1586
論文
円錐パンチを用いたフランジ付き
多段絞り容器角部の増肉成形
安部 洋平TAN Chin Joo森 謙一郎藤岡 武洋野中 孝之海老原 治
著者情報
ジャーナル フリー

2007 年 48 巻 561 号 p. 925-929

詳細
抄録

The wall thickness around an inner corner of 3-stage-formed cups with a flange was increased using conical punches in the 1st and 2nd stages. Since the strength of the formed cups is greatly improved by increasing the wall thickness, the weight of the formed products is reduced by an optimum distribution of the wall thickness resulting from the increase in wall thickness. The increase in thickness around the inner corner was achieved by compressing the side wall and the conical bottom of the cup using an outer punch in the 3rd stage. The amount of compression in the 3rd stage was expressed in terms of the drawn volume after the 2nd stage, and the drawn volume was optimized. Although the maximum increase in wall thickness around the inner corner for the conical punches of 25o was about 9% that with the flat punches, the maximum forming load with the conical punches decreased by about 30%.

著者関連情報
© 2007 一般社団法人 日本塑性加工学会
前の記事 次の記事
feedback
Top