发明授权
- 专利标题： Metal structure defining circular flanged hole and method for making the same
- 专利标题（中）： 定义圆形法兰孔的金属结构及其制造方法
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申请号： US11944463申请日： 2007-11-23
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公开(公告)号： US07934409B2公开(公告)日： 2011-05-03
- 发明人: Wen-Tao Wang , Cheng-Hung Lin , Zhi-Gang Hu , Yong Zeng , Zhi-Guo Yang , Ming-Gang Wang
- 申请人： Wen-Tao Wang , Cheng-Hung Lin , Zhi-Gang Hu , Yong Zeng , Zhi-Guo Yang , Ming-Gang Wang
- 申请人地址： CN Shenzhen, Guangdong Province TW Tu-Cheng, New Taipei
- 专利权人： Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.,Hon Hai Precision Industry Co., Ltd.
- 当前专利权人： Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.,Hon Hai Precision Industry Co., Ltd.
- 当前专利权人地址： CN Shenzhen, Guangdong Province TW Tu-Cheng, New Taipei
- 代理商 Frank R. Niranjan
- 优先权： CN200710200313 20070321
- 主分类号： B21D31/02
- IPC分类号： B21D31/02 ; B21D28/02
摘要：
An exemplary metal structure (10, 30) includes a base portion (14, 34), a flange (122, 322), and an edge portion (1241, 3241). The base portion defines a circular flanged hole (12, 32). The flange extends from a top surface of the base portion and the flange surrounds the circular flanged hole. The edge portion is configured for connecting an inside surface of the flange and the top surface of the base portion. The edge portion includes an edge surface, and a ratio of a radius of the edge surface (1242, 3242) of the edge portion with respect to a thickness of the base portion is less than 0.4. A method for making a circular flanged hole in a metal sheet (15) is also provided.
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