The vehicle axle is a key structural component of an automobile. It primarily bears vehicle loads, ensures normal driving on roads, and is critical to the overall safety of the vehicle. In this solution, inspection is performed on the weld seams of small welded parts on the vehicle axle structure. Considering the limited space on both sides of the weld seams, the inverted wedge technology is adopted, enabling convenient and rapid detection even in confined spaces.

In addition, the workpiece features inconsistent internal and external structures and a complex profile. The exclusive advanced CAD module import function of the inspection equipment is applied to assist in rapid and intuitive defect identification.

Workpiece Information

       The tested workpiece is a vehicle axle component with electron beam welding. Three distinct porosity defects and two single-sided undercut defects are visible on the outer side of the weld bead.

Figure 1 Electron beam welded part of vehicle axle

Actual Inspection Verification

Figure 2 C-scan schematic diagram

Figure 3 Inspection result

Figure 4 Imaging display of undercut defects (secondary wave)

Conclusion

       It can be concluded from the test results that the rational application of the inverted wedge technology effectively solves the problems caused by limited inspection space. The advanced CAD import module greatly facilitates rapid and intuitive defect evaluation.