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US 9,989,482 B2Granted
Methods for radiographic and CT inspection of additively manufactured workpieces
AssigneeGeneral Electric Company
InventorsDavid Henry Abbott, Nicolas Kristopher Sabo
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Abstract
The present disclosure generally relates to methods for radiographic and computed tomography (CT) inspection of workpieces having increasingly complicated internal geometry. The disclosed methods are capable of distributing a contrast agent within the detailed internal geometry of, for example, an AM workpiece or precision cast turbine blade, followed by complete removal of the contrast agent and all residues thereof after inspection.
Claims15
An inspection method comprising:
- applying a contrast slurry comprising a contrast agent to a workpiece having at least one internal passage;
- depositing the contrast agent or an oxide thereof within the internal passage of the workpiece;
- inspecting the workpiece using a radiographic inspection technique;
- and
- removing the contrast agent from the internal passage of the workpiece.
2 more elements
Dependencies are inferred from the claim text.