Centre National De La Recherche Scientifique

H.e.f.

Ecole Centrale De Lyon

Universite Jean Monet

Ecole Central De Lyon

Université Jean-monnet

Denis Mazuyer

Philippe Maurin-Perrier

Florent Ledrappier

Louis Mourier

Christophe Donnet

Eric Audouard

Andre Large

Friction part in a lubricated medium working at contact pressures above 200 MPa and having a contact surface that is textured and subjected, before or after texturizing, to a case hardening treatment for a tribological function, wherein the surface is subjected to operations for producing a periodic network of micrometric cavities having predefined shapes and sizes and a period adapted to the width of the contact surface in order to promote passage to elastohydrodynamic lubrication regime.

Friction piece in a lubricated medium, working at contact pressures higher than 200 MPa

The present invention relates to a tribometer () comprising: a first support assembly () configured to receive a central test piece (), which test piece is circularly cylindrical, and to drive it in rotation about its axis (X); and a second support assembly () configured to receive a plurality of peripheral test pieces, preferably three of them, and to enable said central test piece () to make contact simultaneously with said three peripheral test pieces () in an isostatic configuration in such a manner that the central test piece, while being driven in rotation, can rub against the peripheral test pieces.

Tribometer

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Ecully, France

Denis Mazuyer