Method for producing a friction brake body
AssigneesRobert Bosch GmbH, Breyden GmbH
InventorsChristian Schnatterer, Kangjian Wu, Ilja Potapenko
Life of this patent
Estimating the term…
Abstract
A method is disclosed for producing a friction brake body, in particular a brake disc, which has a main part with a frictional contact region. A wear protection layer is produced on the frictional contact region by way of laser cladding using a laser beam oriented towards the frictional contact region. The wear protection layer is produced by at least one pulverulent additive during the laser cladding. At least two pulverulent additives are added simultaneously such that the dwell time thereof in the laser beam differs.
Claims10
A method for producing a friction brake body which has a base body with a frictional contact region, comprising:
- producing a wear protection layer on the frictional contact region by way of laser cladding using a laser beam directed onto the frictional contact region,
- wherein the wear protection layer is produced with at least two powdered additives during the laser cladding,
- wherein the at least two powdered additives enter the laser beam simultaneously,
- wherein a dwell time in the laser beam of each additive of the at least two additives is of different lengths,
- wherein each additive of the at least two additives is blown separately into the laser beam by at least one corresponding nozzle as a corresponding material jet, such that each of the additives enters the laser beam before reaching the base body,
- wherein all material jets of the at least two additives (i) meet at one meeting point in the laser beam, (ii) are mixed with one another at the one meeting point in the laser beam, and
- wherein the one meeting point is spaced apart from the base body, and
- wherein the at least two additives are blown into the laser beam at different angles relative to a longitudinal axis of the laser beam.
Dependencies are inferred from the claim text.