PROCESS OF ULTRASONIC DETECTION AND PREVENTIVE CONTROL OF DEFECTS IN PARTS MADE FROM COMPOSITE MATERIALS

摘要

A preventive defect detection and control process in mass produced composite material parts, comprising the following steps: a) Automatically obtaining representative parameters of backwall and intermediate echo signal results in each cell of a mesh predefined on the part. b) Storing said parameters in a database. c) Statistically analyzing the stored parameters corresponding to certain areas of a certain part for: c1) detecting isolated and significant alterations in the part manufacturing process generating porosity defects; or c2) detecting slow and permanent alterations in the part manufacturing process generating porosity defects; or c3) detecting areas with a negligible defect generation probability in order to identify them as areas susceptible of inspection by sampling.