摘要 |
The present invention provides a method of forming and a composite superplastically formed structure comprising a panel (40) provided by at least a pair of superplastically-formed sheets (12, 14, 16, 18), which together form a plurality of cells (42), the panel having an opening (20) therein or therethrough defined by a side wall (48) of a respective one, or side walls (48) of respective ones, of the cells; and an insert plug (38) received in the opening and bonded to the said wall or walls. |