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| Influence of Position Error of Composite Co-curing Structure on NC Drilling and Error Compensation |
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Abstract During the co-curing process of composite aircraft structure, random position error of I-beams is diffi cult to be avoided, besides, position error exists during installation . As a result, both rivet holes on the I-beams and holes on single-surface curve skin are diffi cult even impossible to be drilled automatically. To realize the process of NC drilling, on-line inspecting position error of structure feature points and amending existing NC programs are proposed. The principle of position error measurement of feature points, the numerical error model and the strategy for amending the NC programs are presented. This work provides a solid foundation for the NC machining of certain composite structures on aircraft.
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2011, 
