Invention Publication
- Patent Title: PREFORM WITH VARIABLE FIBER DENSITY, FORMING AND MOLDING TOOL AND METHOD FOR FORMING OF COMPOSITE MATERIALS
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Application No.: US17977083Application Date: 2022-10-31
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Publication No.: US20240140052A1Publication Date: 2024-05-02
- Inventor: Venkateshwar R. AITHARAJU , Erik Brandon GOLM , Xiaosong HUANG
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: B29C70/34
- IPC: B29C70/34 ; B29C45/00 ; B29C45/14 ; B29C45/80 ; B29C70/06
Abstract:
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.
Public/Granted literature
- US12257788B2 Preform with variable fiber density, forming and molding tool and method for forming of composite materials Public/Granted day:2025-03-25
Information query
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