复杂结构精密焊件中缺陷空间定位及可视化

Spatial Locating and Visualization of Defects in Precision Weldments with Complex Structure

探讨了复杂结构激光焊件X射线检测图像中定位特征点的选择,建立了缺陷深度与偏移量计算的数学模型,确定了缺陷在精密焊缝中的空间分布特征。提出了缺陷空间位置数据的自动提取算法,实现了复杂结构激光焊件中缺陷空间位置数据的快速提取,并对提取结果进行了实验验证。结果表明所提出的提取算法是可行的。建立了复杂激光焊件的三维模型,自动导人已提取的缺陷空间位置数据,实现了复杂结构激光焊件中批量缺陷的空间位置可视化。

Selection of locating feature point in X-ray detection images for laser weldments with complex structure was discussed, mathematic models of defects depth and deviation were established, and spatial distribution feature of defects in precision weldments was determined. Automated extraction algorithm of defects spatial location data was provided, the quick extraction of defects spatial location data in laser weldments with complex structure was achieved, and experimental verification was proceeded. The results show that the extracted extraction algorithm is feasible. Three-dimensional model of laser weldments with complex structure are established after the spatial location data of defects is input, the visualization of spatial location for bulk defects in laser weldments with complex structure is achieved.