Patent Number: 6,761,783

Title: Process method to repair bismaleimide (BMI) composite structures

Abstract: A method for repairing a damaged area, referred to as the repair area, of a composite structure comprises steps of: making alignment markings on the repair area; fabricating a pair of alignment templates; preparing the repair area for a hot bonded, vacuum bagged repair; assembling a repair patch; consolidating the repair patch; heating the repair patch; transferring and aligning the repair patch to the repair area; vacuum bagging, heating, and cooling the repair patch for a partial cure at the repair area; heating and cooling the repair patch in an oven; and bonding the repair patch to the repair area.

Inventors: Keller; Russell L. (Maple Valley, WA), Owen; Wesley S. (Tacoma, WA)

Assignee: The Boeing Company

International Classification: B29C 73/10 (20060101); B29C 73/34 (20060101); B29C 73/00 (20060101); B32B 035/00 ()

Expiration Date: 07/13/2021