Machine element for roller charge

Details Machine element for roller charge Machine element for roller charge

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 33/62 (2006.01) C22C 38/18 (2006.01) F16C 33/32 (2006.01) F16C 33/34 (2006.01) F16C 33/64 (2006.01)

Patent

CA 2583143

The invention relates to a machine element which is formed form steel having a martensite structure and which comprises, at least in a load-free state, compression stresses which are thermochemically produced under at least one section of the surface of the machine element. The value of the compression stresses from the surface to a depth of a maximum 40 ~m corresponds to at least the absolute value of -300 Mpa.

L'invention concerne un organe de machine qui est formé d'un acier à structure martensitique et qui présente, au moins dans un état sans charge, des contraintes résiduelles de compression générées thermochimiquement sous au moins un segment de sa surface. Selon l'invention, la valeur des contraintes résiduelles de compression de la surface jusqu'à une profondeur d'au plus 40 ?m correspond au moins à la valeur absolue de -300 MPa.

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