Researchers develop customisable surface inspection system

Quality control of component surfaces is a complex undertaking. But researchers from the Fraunhofer Institute have engineered a high-precision modular inspection system that can be adapted on a customer-specific basis. It is also designed to be easily integrated into various production processes.

The inspection system above shows the system analysing the surface of a blisk (Bladed Integrated Disk) using just two cameras and a light source. On a blisk, even the most infinitesimal fracture or impact point can diminish its reliability and durability, so thorough and reliable inspection is essential.

Many surface inspection systems on the market are configured for specific materials and dimensions, so standard solutions cannot cover the entire spectrum of possible testing objectives. So researchers have developed this modular inspection system so that it can be modified to customer-defined specifications.

It works by first illuminating the surface of the work piece. This is then scanned using multiple cameras set at a wide range of angles. This is important to pick up impact points and fractures that are only visible from one side. With free-formed surfaces, regions are also recorded in this manner, allowing surfaces covered by curvatures or corners to still be fully and accurately inspected.

Justin Cunningham

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