发明名称 |
METHOD OF MANUFACTURING TUBULAR MEMBER |
摘要 |
<p>A method of manufacturing a tubular member having a non-constant thickness by ironing at least a portion of the tubular material. The ironing apparatus can have a punch and a die, and the die can have a convex and concave side surface opposing the punch. The method can include bending an axial end portion of the tubular material to form a bent portion. The tubular material can then axially engage the die at the bent portion, and then the punch can be moved relative to the die to iron at least a portion of the tubular material.</p> |
申请公布号 |
KR20130116961(A) |
申请公布日期 |
2013.10.24 |
申请号 |
KR20137026827 |
申请日期 |
2009.11.18 |
申请人 |
TOPY KOGYO KABUSHIKI KAISHA |
发明人 |
ABE KISHIRO;TAKANO TAKAMITSU;TAKEUCHI KOJI;KATO KATSUKI;NONAKA TAKAYUKI;MIYASHITA SATORU;WATANABE TSUNEO;TAGUCHI KENJI;NAKAMURA AKIRA;IWAKURA YUJI |
分类号 |
B21D53/30;B21C37/08;B21D22/28 |
主分类号 |
B21D53/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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