TECHNOTES: Newsletter – Apr-Jun 2016

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F-35 High Fidelity Fastener Feature Measurement

High fasteners are a critical issue on the F-35, especially if not caught until the latter stages of the manufacturing process. F-35 fastener
feature measurements must be taken for countersink depth, installed fastener flushness, and final fastener flushness after fill material has
been applied. Current methods for inspecting fastener features at various states of manufacture are dependent on handheld gauges
which have proven unreliable and non-repeatable. Single line laser scanners have also been evaluated by our partners at Lockheed but
rejected because these systems cannot detect fastener tilt that is perpendicular to the measurement direction nor can they characterize
the curvature of aircraft…Read More.
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