A method of making a fibrous part is provided. The method may comprise forming a porous structure with an annular geometry. A first entrance channel and a second entrance channel may be formed with the entrance channels defined by a surface of the preform. The entrance channels may also extend in a radial direction from an inner diameter of the annular porous structure partially across the surface. An exit channel may be formed between the entrance channels and defined by the surface. The exit channel may extend in a radial direction from an outer diameter of the annular porous structure partially across the surface.

A braking device for a vehicle capable of resulting in an increased driving comfort is provided. The braking device may have a brake disc of a disc brake for rotating about a rotation axis, in which the disc may have a disc body. The disc body may have a braking band having opposite braking surfaces and at least one connection portion for connecting the disc to a connection device of a vehicle associable with the braking device. The braking band defines an axial direction parallel to the rotation axis of the brake disc, a radial direction orthogonal to the axial direction and a tangential or circumferential direction orthogonal both to the axial direction and to the radial direction. The connection portion is connected to the braking band by connecting elements, the connecting elements being a plurality of elements equally spaced apart in circumferential direction.

A method for producing a brake disk for a wheel brake of a land vehicle includes laser depositing a duplex steel anti-corrosion layer to an axial friction side of a main body produced from gray cast iron at a surface speed of more than 10 m/min and applying an anti-abrasion layer to the anti-corrosion layer.

A brake disc assembly includes a central drive hub and a wear disc, which includes first and second faces held together axially about the hub. Each face has a respective inner surface and is formed of at least two distinct segments. Each segment extends between two radial edges. The radial edges of the segments of one face do not extend opposite the radial edges of the segments of the other face. Each segment of the face is adapted to be secured to a segment of the other face via at least one fastening member adapted to hold said faces.

A brake assembly for use in a disc brake mechanism of a vehicle. The brake assembly includes an aluminum ceramic composite rotor connected to a central aluminum hub. The rotor includes projections extending radially inward toward the hub and engaging with through holes in the hub. The projections extend through the through holes to connect the rotor to the hub. The engagement between the projections and the through holes allows for radial movement of the projections relative to the through holes, which radial movement may be caused by thermal expansion of the rotor from heat generated during a breaking operation.

The present application discloses a high-performance metal matrix composite (MMC) vehicle braking component, two methods of making a porous ceramic insert, a method of making an MMC comprising a porous ceramic insert, and a method of making an MMC not comprised of a porous ceramic insert. In one exemplary embodiment the porous ceramic insert is comprised of a ceramic compound and a sacrificial insert. In another exemplary embodiment the porous ceramic insert is comprised of one or more ceramic compounds and one or more ceramic preforms. The high performance MMC vehicle braking component has two distinct friction portions that extended from the outer surfaces to the thermal management portion of the high performance MMC vehicle braking component.

A brake rotor assembly can include a structural part having a receiving surface and at least one friction surface parts having a contact surface. The friction surface part can be fixably attached to the receiving surface of the structural part such that the contact surface faces away from the receiving surface of the structural surface to form at least part of an annular braking surface arranged concentrically around an axis of rotation of the structural part.

A brake disc assembly includes a central drive hub and a wear disc, which includes first and second faces held together axially about the hub. Each face has a respective inner surface and is formed of at least two distinct segments. Each segment extends between two radial edges. The radial edges of the segments of one face do not extend opposite the radial edges of the segments of the other face. Each segment of the face is adapted to be secured to a segment of the other face via at least one fastening member adapted to hold said faces.

The present invention relates to a frictional part (2) for a frictionally acting device comprising an annular friction surface (26), which has an inner edge (34) and an outer edge (36), wherein a circumferential groove (42) which extends in a zig-zag or undulating fashion between radially interior and radially exterior deflection points (44, 46), a plurality of outer grooves (64, 70) which each have an outer opening (66, 72) at the outer edge (36) and open into the circumferential groove (42) at opening points (68, 74) between the deflection points (44, 46), and a plurality of inner grooves (56, 60) which each have an inner opening (58, 62) at the inner edge (34) and open into the circumferential groove (42) between the opening points (68, 74), are provided in the friction surface (26). The outer opening (66, 72) of at least one of the outer grooves (64, 70) has a groove cross section which is larger than a groove cross section of the inner opening (58, 62) of at least one of the inner grooves (56, 60).

An article includes a structural core, one or more friction pads, and a plurality of elongated fasteners. The structural core includes two core surfaces and a plurality of pockets extending between the core surfaces. Each friction pad includes a pad surface and a friction surface opposite the pad surface. Each pad surface includes a planar pad surface configured to contact the core surface and a plurality of bosses extending from the first planar pad surface and including a bore. Each planar pad surface is at least about 50% of a surface area of the respective first and second pad surfaces. The plurality of bosses engages with the plurality of pockets to position the respective first and second friction pads relative to the structural core. The plurality of elongated fasteners passes through bores of corresponding bosses of friction pads to fasten the friction pads to the structural core.