Invention Grant
- Patent Title: Multi-sheet structures and method for manufacturing same
- Patent Title (中): 多片结构及其制造方法
-
Application No.: US11930838Application Date: 2007-10-31
-
Publication No.: US07866531B2Publication Date: 2011-01-11
- Inventor: Qi Yang , Harsha Badarinarayan , Frank Hunt , Kazutaka Okamoto
- Applicant: Qi Yang , Harsha Badarinarayan , Frank Hunt , Kazutaka Okamoto
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd
- Current Assignee: Hitachi, Ltd
- Current Assignee Address: JP Tokyo
- Agency: Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
- Main IPC: B23K31/02
- IPC: B23K31/02
Abstract:
A method for fabricating multi-sheet structures in which a first sheet is arranged on a planar support and a blowing agent is placed on at least one selected portion of the first sheet. A second sheet is positioned over the first sheet so that the second sheet overlies the selected portion of the first sheet and the first and second sheets are then secured together by friction stir welding in a pattern which encloses the selected portion of the first sheet. Additional sheets may be secured together in a like fashion. Thereafter, the sheets are heated to a temperature sufficient to decompose the blowing agent.
Public/Granted literature
- US20090110949A1 MULTI-SHEET STRUCTURES AND METHOD FOR MANUFACTURING SAME Public/Granted day:2009-04-30
Information query
IPC分类:
