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公开(公告)号：EP3881962A2
公开(公告)日：2021-09-22
申请号：EP21162970.4
申请日：2021-03-16
摘要： The present disclosure provides methods and systems for composite-to-metal hybrid bonded structures compromising the laser surface treatment on titanium alloys to promote adhesive bond performance. For example, a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser (410, 440; 910) may be coupled to the computer and apply a pulsed laser beam (920) to a contact surface (406; 906; 1106, 1121) of the titanium alloy along the predefined geometric pattern. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 100 and 500 nm. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain high degree of open pore structure and promote adhesive bond performance. Adhesive, primer or composite resin matrix may fully infiltrate into the open pore structures. Adhesive and composite laminate may co-cure to form composite-to-titanium hybrid bonded structures.
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公开(公告)号：EP4219905A1
公开(公告)日：2023-08-02
申请号：EP23153534.5
申请日：2023-01-26
发明人： WANG, Zhigang , EL-WARDANY, Tahany , TANG, Xia , SRINIVASAN, Gajawalli V. , RUGLIO, Anthony G. , FANG, Xiaomei
IPC分类号： F01D5/28
摘要： A gas turbine engine article includes a substrate (62) that has a pre-bond surface (62a) that includes a serpentine groove (66). A coating is disposed on the pre-bond surface (62a) and mechanically interlocks with the serpentine groove (66).
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公开(公告)号：EP3881962A3
公开(公告)日：2021-12-01
申请号：EP21162970.4
申请日：2021-03-16
摘要： The present disclosure provides methods and systems for composite-to-metal hybrid bonded structures compromising the laser surface treatment on titanium alloys to promote adhesive bond performance. For example, a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser (410, 440; 910) may be coupled to the computer and apply a pulsed laser beam (920) to a contact surface (406; 906; 1106, 1121) of the titanium alloy along the predefined geometric pattern. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 100 and 500 nm. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain high degree of open pore structure and promote adhesive bond performance. Adhesive, primer or composite resin matrix may fully infiltrate into the open pore structures. Adhesive and composite laminate may co-cure to form composite-to-titanium hybrid bonded structures.
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