发明授权
- 专利标题： Hot bulge forming die apparatus
- 专利标题（中）： 热膨胀成型模具设备
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申请号： US12839894申请日： 2010-07-20
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公开(公告)号： US08408034B2公开(公告)日： 2013-04-02
- 发明人: Yoshimitsu Ishihara , Daisuke Yamamoto , Takayuki Kanou
- 申请人： Yoshimitsu Ishihara , Daisuke Yamamoto , Takayuki Kanou
- 申请人地址： JP Tokyo
- 专利权人： Honda Motor Co., Ltd.
- 当前专利权人： Honda Motor Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Rankin, Hill & Clark LLP
- 优先权： JP2009-169830 20090721
- 主分类号： B21D39/08
- IPC分类号： B21D39/08 ; B21D39/20
摘要：
A hot bulge forming die apparatus forms a preheated tubular material 10a into a tubular material 10d. The hot bulge forming die apparatus includes a lower die 21B having a cavity surface 211B and an upper die 31B having a cavity surface 311B. An elongated hole 215 is formed in a circumferential edge portion 215 of the lower die 21B so as to extend outwards, and a projection 315 is formed on a circumferential edge portion 314 of the upper die 31B so as to fit in the elongated hole 215. When the dies are clamped together, the projection 315 formed on the circumferential edge portion 314 of the upper die 31B fits in the elongated hole 215 formed in the circumferential edge portion 214 of the lower die 21B.
公开/授权文献
- US20110016947A1 HOT BULGE FORMING DIE APPARATUS 公开/授权日：2011-01-27
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