To meet high demanding industrial requirements in terms of economical, efficient and highly resistant solutions, HEF Groupe puts considerable efforts into the development of new technologies and innovative products.
Its teams of experts work in cooperation with scientists, institutions and industries on national and european research programms.
They are consulted by high technology groups or OEM on sensitive applications or key-development projects. In that case they establish objective reports and recomendations.

HEF high performance products are the results of rigorous validation and testing campaigns, which are carried out on dedicated test benches under varied tribological operating conditions and environments (temperature, corrosive and abrasive surrounding...)

To complete or to support these tests, HEF laboratory uses analysis and simulation equipment to characterise and optimise the product performance.

Basic product characterisation

• Dimensional inspection
• Mechanical characterisation
  (microhardness, calotest ....)
• Surface characterisation
  (micrography, profilometry, 3D surface topography, SEM, ...)
• Corrosion resistance characterisation
  (salt spray test ....)

Functional characterisation of products on friction and wear test benches.

Multi station test benches reproduce the main operating parameter of industrial joint system:

• kinematics
• pressure, temperature
• speed, oscillation angle
• greasing frequency
• atmopshere / surrounding

For the various products tested, these simulators record friction coefficient, wear and temperature all along the test duration.

Simulation / Modelisation

• FEM
• Glass Model