Fatigue resistance is influenced by a multiplicity of parameters and among these, roughness and residual surface tensions play a fundamental role. In fact, low roughness levels, combined with high residual traction values, negatively influence fatigue resistance.
2Effe Engineering has developed a polishing method with a diamond paste that permits very low roughness levels (Ra < 0.03 µm) and to instil high compression levels (> -900 Mpa) at the same time. The polishing process essentially eliminates the roughness crests, without the use of acids that could cause dangerous long-term corrosion phenomenon.

2Effe Engineering is able to:
- detect tensions induced by polishing using an X-ray diffractometer;
- assess the morphology of the polished surface, using a scanning electron microscope (SEM)
- performing the qualitative chemical analysis of particles possibly located on the surface, using a probe for microanalysis.

These surveys can be performed on production samples to customer request.