Patent ID: 7502712

Claim:
In a preventive defect detection and control process for produced aircraft-type composite material parts, the improvements comprising: a) automatically obtaining from pulse-echo ultrasonic scanning representative parameters of backwall and intermediate echo signal results in each of at least areas of cells of a mesh predefined on the parts; b) storing said parameters in a database; and c) statistically analyzing the stored parameters corresponding at least to certain of the areas of the cells of the parts for: c1) detecting isolated and significant alterations in the parts manufacturing process generating porosity defects (overall and in layers) in the analyzed areas of the cells of the parts for performing corresponding first preventive action; or c2) detecting slow and permanent alterations in the part manufacturing process generating porosity defects (overall and in layers) in the analyzed areas of the cells of the parts for performing corresponding second preventive action; or c3) detecting analyzed areas of the cells of the parts with negligible defect generation probability for identifying cells of the parts susceptible of inspection by sampling.