Blowholes within aluminum castings are shrinkage cavities. As they are detected as defects during the inspection, it is necessary to find out the location and size of the blowholes to take preventive measures. The shrinkage cavities cannot be visually inspected, X-ray system is needed for such shrinkage cavity inspections in aluminum casting.

Aluminum die castings have complex shapes, and it is difficult to determine whether they are cast cavities by X-ray radiographic images taken from a single direction. Therefore, an X-ray inspection system that can observe from many different directions is necessary. In addition, since aluminum die-cast is a metallic material and many samples are large, an X-ray tube with a high voltage is necessary.

The horizontal model of our X-ray inspection systems has a turntable stage, so the workpiece can be rotated 360 degrees for observation simply by placing it on the object. The Computed Tomography (CT) imaging function is effective for more detailed shape observation. The ability to observe 3D images and cross-sectional images from three directions enables observation of internal structures that could not be seen without grinding or cutting, as well as dimensional measurement and comparison with design values by converting to Stereolithography (STL) data.

The horizontal X-ray inspection system μRay8700 is equipped with a 130kV microfocus X-ray tube and a high-resolution, large area 6-megapixel Flat Panel Detector (FPD), enabling wide-field, high-resolution X-ray radiographic images of Shrinkage Cavities in Aluminum Casting.

Aluminum die cast cavities X-ray inspection image | Matsusada Precision
X-ray system requirements
Focal spot Microfocus
X-ray tube voltage 130 kV
Magnification 1 to 100x