Composite brake disc
AssigneeDaimler AG
InventorsCornelius Hentrich, Ralph Mayer
Life of this patent
Estimating the term…
Abstract
A composite brake disk for a motor vehicle includes a brake disk chamber and a related brake ring connected together by a joining process. In one joint area an internal brake ring tooth profile engages in a brake disk chamber tooth profile. The brake disk chamber tooth profile has brake disk chamber tooth faces in circular arc form, whereas the brake ring-tooth profile has brake ring tooth faces in the form of an involute. Due to the special version of the pairing of two different tooth formats a fixed, load-bearing connection can be achieved between the brake disk chamber and the brake ring.
Claims8
A composite brake disk for a motor vehicle, comprising:
- a brake disk chamber;
- and
- at least one associated brake ring joined to the brake disk chamber by a joining process,
- wherein, in a joint area, an inside brake ring tooth profile engages with a brake disk chamber tooth profile at an angle offset relative to a planar surface of the at least one associated brake ring,
- wherein brake disk chamber tooth faces of the brake disk chamber-tooth profile and brake ring tooth faces of the inside brake ring tooth profile have different fits in the joint area,
- wherein the brake disk chamber has a conical basic form before the joining process and a reference teething diameter, which increases towards an open end of the brake disk chamber, and
- wherein the conical basic form of the brake disk chamber is modified by the joining process.
A method for forming a composite brake disk, the method comprising:
- providing a brake disk chamber;
- providing at least one brake ring;
- and
- joining the brake disk chamber and the at least one brake ring by
- engaging, in a joint area, an inside brake ring tooth profile with a brake disk chamber tooth profile at an angle offset relative to a planar surface of the at least one associated brake ring, wherein brake disk chamber tooth faces of the brake disk chamber-tooth profile and brake ring tooth faces of the inside brake ring tooth profile have different fits in the joint area, and
- subjecting the inside brake ring tooth profile or the brake disk chamber-tooth profile to elastic-plastic deformation at least in an area of the respective tooth faces due to the joining process.
A method for forming a composite brake disk, the method comprising:
- providing a brake disk chamber having a conical basic form and a reference teething diameter that increases towards an open end of the brake disk chamber;
- providing at least one brake ring;
- and
- joining the brake disk chamber and the at least one brake ring by engaging, in a joint area, an inside brake ring tooth profile with a brake disk chamber tooth profile at an angle offset relative to a planar surface of the at least one associated brake ring, wherein brake disk chamber tooth faces of the brake disk chamber-tooth profile and brake ring tooth faces of the inside brake ring tooth profile have different fits in the joint area, wherein the joining of the brake disk chamber and the at least one brake ring further comprises subjecting the inside brake ring tooth profile or the brake disk chamber-tooth profile to elastic-plastic deformation at least in an area of the respective tooth faces due to the joining process.
Dependencies are inferred from the claim text.