- 专利标题： PREFORM WITH VARIABLE FIBER DENSITY, FORMING AND MOLDING TOOL AND METHOD FOR FORMING OF COMPOSITE MATERIALS
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申请号： US17977083申请日： 2022-10-31
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公开(公告)号： US20240140052A1公开(公告)日： 2024-05-02
- 发明人: Venkateshwar R. AITHARAJU , Erik Brandon GOLM , Xiaosong HUANG
- 申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 申请人地址： US MI Detroit
- 专利权人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 当前专利权人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 当前专利权人地址： US MI Detroit
- 主分类号： B29C70/34
- IPC分类号： B29C70/34 ; B29C45/00 ; B29C45/14 ; B29C45/80 ; B29C70/06
摘要：
A method for fabricating a composite panel includes providing a preform including a peripheral edge portion and a central portion. The central portion has a first thickness, the peripheral edge portion has a second thickness that is greater than the first thickness, and a first step is arranged between the central portion and the peripheral edge portion. The method includes providing a tool including a binder defining a second step, an upper punch, and a lower tool; arranging the preform between the binder and the upper punch and the lower tool; shaping the preform using the tool; and injection molding the preform in the tool to create the composite panel.
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