StressMap, a specialist in residual stress metrology using the contour method, has invested in two new capabilities to help customers prolong the life and control distortions of critical mechanical components in the aerospace, motorsport and defence industries.

In its quest to making cutting-edge residual stress engineering technology available to industry, StressMap has designed, built and commissioned a new wire cutting machine that facilitates contour method measurements in polymers, ceramics and composites. Before this machine, it was only possible to measure electrically conductive materials (mainly metals), since the only cutting technique available was wire EDM.

StressMap’s invention is the fruit of a year’s worth of research and is the only machine in the world that can cut these non-conductive materials with the required quality. Specialist researchers presented and scrutinised the first results obtained in a PEEK pipe at a conference in the spring, with further structures currently undergoing tests.

Another new capability for StressMap is a laser peening machine, which will see collaborative use with a Formula 1 team as it looks to test engine components. This technique induces beneficial residual stress at the surface of key components, preventing cracking and prolonging their life.

Over the past decade, StressMap has delivered over 150 projects for 80 customers across the world. Applications of the company’s residual stress measurement expertise vary widely, and include: additive manufactured titanium components; nickel superalloys for turbine discs; and cobalt-chrome alloys for bio-medical use.

StressMap has also developed strain scanning simulation software in conjunction with STFC in Harwell Oxfordshire to improve the quality of neutron diffraction measurements by maximising accuracy in strain measurements and providing a high level of positional accuracy and repeatability.

For further information www.stressmap.co.uk