Publication: Publication Date: 1 May 2015Testing Method: ,
Fine Scale Metrology on Cylindrical Structures using X-ray Micro-computed Tomography
The ability to use state-of-the-art X-ray microcomputed tomography to perform fine scale (low tens of microns) external and internal measurements on cylindrical structures is explored. Software was developed to automate the process of rapidly analyzing hundreds of computed tomography slices. First, a model system consisting of various-sized cylindrical steel boring tools placed one inside the other was computed tomography scanned and analyzed for roundness, circularity, concentricity, and radius and gap thickness uniformity. Then, a complex real-world metallic cylindrical structure was computed tomography scanned and analyzed for the same characteristics. The structure was heated to several temperatures to measure thermal expansion using computed tomography.
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