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摘要
This paper presents a self-developed X-ray cone beam CT detection system. By the use of the system, the CT scan and reconstruction were performed for a certain type of turbine blade sample, and the profile characteristics of the blade sample were demonstrated by three-dimensional visualization. In addition, the factors affecting the three-dimensional imaging quality, such as the tube voltage, the rotation axis tilt correction, the number of projections and the presence or absence of filter, are discussed. The study on the influence factors of CT reconstruction of turbine blade will help to expand the application of CT technology in the field of blade detection, including the analysis of blade profile deviation, the location and quantification of casting defects and the accurate measurement of blade wall thickness.
