H.e.f.

Mahle International Gmbh

Psa Automobiles Sa

Hydromecanique Et Frottement

Sandrine Henry

Christophe Heau

Fabrice Prost

Roland Lochmann

Marco Maurizi

Moussa Diaby

A cam treatment to reduce the friction coefficient thereof relative to a counterpart in an area provided with a hard coating made from amorphous Diamond-Like Carbon or DLC, involves disposing the cams on a support, bringing the support and the cams into a chamber placed under vacuum so as to clean the cams, bringing the support into relative movement along a trajectory of travel relative to a coating source, and taking the cams off the support before assembling them on a camshaft; the method involves disposing the cams on the support in a fixed configuration which is defined in such a way that the cams are brought successively opposite the source with orientations and at distances substantially identical relative to the source, to deposit a hard coating made from amorphous Diamond-Like Carbon or DLC, selectively on the fraction of the section of the cams that is oriented towards the source.

Method for coating the nose of the cams of a camshaft with DLC, camshaft obtained in this way and facility for implementing said method

The piston pin has an anti-seize coating limited to an angular sector corresponding at least to a friction area submitted to a contact pressure along a preferential direction.

Piston pin and method of applying an anti-seize coating on the pin

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Saint-Paul-en-Jarez, France

Sandrine Henry