Failure Analysis of High Strength Steels and Fiber Composites in the Aerospace Industry

Cassidian, an aerospace and defense enterprise, was originally planning to buy a measurement device to perform failure analysis. The company opted for Alicona’s InfiniteFocus when they discovered that it provides a number of benefits in various fields. Cassidian is now fully exploiting the great potential of the InfiniteFocus, using it to inspect incoming goods and verifying high surface quality for customers, in addition to failure analysis.

Role of InfiniteFocus at Cassidian

Cassidian uses the InfiniteFocus to perform high resolution measurements of surface finish and geometry in order to validate the information provided by manufacturers and to determine the defects before further processing (Figure 1). A numerical measurement is performed to determine the surface quality of parts, so that unsuitable and costly materials can be avoided in production.

The InfiniteFocus​ also provides a detailed report that includes easily readable measurement results and practically oriented visualization, allowing Cassidian to confirm whether the stipulated surface finish and agreed specifications are met. Since the deployment of this novel measurement system, customer complaints pertaining to final inspection of the aircraft are minimized.

InfiniteFocus

Figure 1. The surface measurement allows in contrast to profile-based measurements a more detailed specification of the surface characteristics.

What is Measured - Titan, High Strength Steels and Fiber Composites

Using the InfiniteFocus, Cassidian measure many different components, including those with a complex geometry. The company performs various measurements, including roughness, diverse angles, threads, and radii (Figure 2). It is now possible to measure surface characteristics, such as the root of a thread and a gear drive’s thread flanks, which were previously difficult to achieve or completely impossible. Cassidian uses the InfiniteFocus to measure surface damage of different sizes and dimensions, even on round shape components.

Cassidian measures

Figure 2. Cassidian measures radii, threads, diverse angles and roughness of various components. Surface damage of various sizes and dimensions are measured, even on round components.

What the Customers States

"Due to its high flexibility, InfiniteFocus had paid for itself within the first year. Initially the system had been purchased for failure analysis and for measuring the depth of the damage. However, it soon became apparent that the measurement device is universally applicable. Today we operate across departments which makes both quality assurance and development more comprehensive, and at the same time, easier and more efficient." states Gregor Heichler, project engineer, Cassidian

Alicona

This information has been sourced, reviewed and adapted from materials provided by Alicona Imaging GmbH.

For more information on this source, please visit Alicona Imaging GmbH.

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