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1.
公开(公告)号:US20050247097A1
公开(公告)日:2005-11-10
申请号:US10522217
申请日:2003-07-25
申请人: Yuji Maeda , Sigetomi Miyoshi , Takahiro Yamaguchi
发明人: Yuji Maeda , Sigetomi Miyoshi , Takahiro Yamaguchi
IPC分类号: B65D35/06 , B21C23/00 , B21C23/08 , B21C23/18 , B21C23/21 , B21C25/02 , B21J5/06 , B21K21/04 , B30B5/00
CPC分类号: B21C23/217 , B21C23/186 , B21C25/02
摘要: It is an object of the present invention to provide a novel aluminum tube of an oval cross section that has a wider range of applications and added values. A disk-shaped metal slug (21) is impact-extruded with the use of a die (14) and a punch (13) each having an optimally designed structure to form a metal tube (T) integrally including a mouth, a shoulder and a body of an oval cross section. A hem portion of the oval body of the tube (T) thus formed and hardened by the impact extrusion is once deformed into a circular shape, and then trimmed off by a turning operation.
摘要翻译: 本发明的一个目的是提供一种椭圆形横截面的新型铝管,其应用范围更广泛且附加值更高。 使用具有最佳设计结构的模具(14)和冲头(13)冲击挤压盘形金属块(21),以形成一体的金属管(T),其包括口,肩和 一个椭圆形截面的身体。 通过冲击挤出形成并硬化的管(T)的椭圆形体的中间部分一度变形为圆形,然后通过转动操作来修剪。
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2.
公开(公告)号:US07219522B2
公开(公告)日:2007-05-22
申请号:US10522217
申请日:2003-07-25
申请人: Yuji Maeda , Sigetomi Miyoshi , Takahiro Yamaguchi
发明人: Yuji Maeda , Sigetomi Miyoshi , Takahiro Yamaguchi
IPC分类号: B21C23/00
CPC分类号: B21C23/217 , B21C23/186 , B21C25/02
摘要: It is an object of the present invention to provide a novel aluminum tube of an oval cross section that has a wider range of applications and added values. A disk-shaped metal slug (21) is impact-extruded with the use of a die (14) and a punch (13) each having an optimally designed structure to form a metal tube (T) integrally including a mouth, a shoulder and a body of an oval cross section. A hem portion of the oval body of the tube (T) thus formed and hardened by the impact extrusion is once deformed into a circular shape, and then trimmed off by a turning operation.
摘要翻译: 本发明的一个目的是提供一种椭圆形横截面的新型铝管,其应用范围更广泛且附加值更高。 使用具有最佳设计结构的模具(14)和冲头(13)冲击挤压盘形金属块(21),以形成一体的金属管(T),其包括口,肩和 一个椭圆形截面的身体。 通过冲击挤出形成并硬化的管(T)的椭圆体的中间部分一度变形为圆形,然后通过转动操作来修剪。
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