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Piston inspection to prevent subsequent damage

In light of the great amount of stress placed on pistons, even tiny production flaws such as salt core residues in the cooling channel can result in substantial damage later on.

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 Piston as CT model
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Piston as CT model
  • Detection of inclusions and salt core residues
  • Verification of blowholes and pores
  • Cooling channel measurement
  • Comparison of actual vs. target situation

The demands placed on modern spark-ignition and diesel engines are constantly on the rise. They do not only have to have a high power density but also they have to display low fuel and oil consumption. This means for the piston in use contniously increasing demands on stability while minimizing the piston mass as much as possible. However, lightweight aluminum pistons for diesel-engine passenger cars can only be used  when they have complex cooling cavities. If salt core residues remain in this cooling channel after casting, damage to the engine can occur.

YXLON X-ray systems make typically occurring anomalies visible, for instance blowholes and blisters but also cracks and residues in the salt core and inclusions of foreign materials with our Y.HDR- Inspect  technology. Above and beyond this, a further increase in production process efficiency is possible by deploying computed tomography in our computed tomography systems during initial prototyping. They equally enable the implementation of complete comparisons of actual vs. target situations and the analysis of cooling-channel geometries and remaining wall thicknesses.

We offer you a wide range of X-ray techniques at our application centers. We design solutions that replace X-ray films, provide radioscopy and fully automatic defect recognition in X-ray images, as well as computed tomography services for scanning inspection items ranging from micro-CT to CT using a linear accelerator.