Friction brake body, friction brake, and method for producing a friction brake body
AssigneesRobert Bosch GmbH, Breyden GmbH
InventorsChristian Schnatterer, Kangjian Wu, Ilja Potapenko, Thomas Pfeiffer
Life of this patent
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Abstract
A friction brake body, in particular a brake disc, for a friction brake of a motor vehicle is disclosed. The friction brake body has a main part with at least one wear protection layer on at least one frictional contact region of the main part. The wear protection layer forms a frictional contact surface on the wear protection layer face facing away from the main part. The degree of hardness of the wear protection layer increases incrementally or continuously from the main part to the frictional contact surface.
Claims11
A friction brake body for a friction brake of a motor vehicle, comprising:
- a main part;
- a first wear protection layer located on the main part and comprising a carbon content of less than 0.1% by weight, a first degree of hardness of the first wear protection layer is greater than a degree of hardness of the main part;
- a second wear protection layer arranged on the first wear protection layer and comprising a carbon content from 0.1% by weight to 1.0% by weight, a second degree of hardness of the second wear protection layer is greater than the first degree of hardness of the first wear protection layer;
- and
- a third wear protection layer arranged on the second wear protection layer and comprising a carbon content greater 1.0% by weight, a third degree of hardness of the third wear protection layer is greater than the second degree of hardness of the second wear protection layer,
- wherein the third wear protection layer is configured to form a frictional contact surface facing away from the main part.
Dependencies are inferred from the claim text.