发明名称 |
Slug expanding and capturing apparatus and method for hydroforming application |
摘要 |
An apparatus and method for piercing a hole in a work piece suitable for hydroforming applications is provided. The apparatus includes first and second die portions forming a die cavity for the work piece. Each die includes a punch cavity generally perpendicular to the work piece. One of the punch cavities has a slug capturing area. A punch with an angular cutting face can be moved within a cross passage created by the punch cavities to impact the work piece. The angular cutting face of the punch has a larger surface area than the punch body, which results in expanding slugs pierced from the work piece. The slug capturing area is configured with a cross-sectional area smaller than the surface area of the angular cutting face.
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申请公布号 |
US7503198(B1) |
申请公布日期 |
2009.03.17 |
申请号 |
US20080027359 |
申请日期 |
2008.02.07 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
GHIRAN MIKE M.;SYCHTA VINCENT J.;BACHELOR GEORGE W.;KENT TERRY A. |
分类号 |
B21D28/28 |
主分类号 |
B21D28/28 |
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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