| 摘要 |
A preventive defect detection and control process for a mass produced composite material parts automatically obtains representative parameters of backwall and intermediate echo signal results in each cell of a mesh predefined on the parts, stores the parameters in a database and statistically analyzes the stored parameters for detecting isolated and significant alterations in the parts manufacturing process generating porosity defects, detecting slow and permanent alterations in the parts manufacturing process generating porosity defects or detecting areas with a negligible defect generation probability in order to identify areas susceptible of inspection by sampling.
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