Patent ID: 11865647
Assignee: THE BOEING COMPANY
Field: Machine tools (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 10:
11. A composite repair system comprising:
an automated scarfing tool configured to remove plies in a rework zone of a composite structure;
a database comprising a model of the composite structure having a rectangular shaped theoretical scarfing bottom surface;
a computer system configured to select a scarf repair model based on a maximum longitudinal distance between two extremities of the composite structure and an aspect ratio of the rework zone, wherein the aspect ratio of the rework zone is a ratio of a width of a longitudinal edge of the rework zone and the maximum longitudinal distance between the two extremities of the composite structure; and
the computer system further configured to identify an actual scarfing bottom surface in a local axis system for the rework zone and modify parameters for a rework program for the automated scarfing tool based on deviations between the theoretical scarfing bottom surface and the actual scarfing bottom surface;
wherein the automated scarfing tool is further configured to cut reference lines on a tool side surface of the composite structure parallel to all four edges of the theoretical scarfing bottom surface until all four of the edges are cut at a same depth.