A method of manufacture for a carbon/carbon part including a method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing a gaseous reducing agent hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures. A method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures.

An inner disc carrier (LT) for a wet-type friction clutch (K0) may have a driving toothing including ridges (S, SX) and grooves (N) for the form-locking accommodation of discs (L) of the friction clutch (K0). Each of a first group of the ridges (S) has a first opening (A1) produced in a chip-less shaping process and a section (ST) extending radially inwardly at the first opening (A1) and created during production of the first opening (A1). Hydraulic fluid supplied radially from inside the inner disc carrier (LT) from a first axial position is guided through the first openings (A1) to the discs (L). Hydraulic fluid supplied radially from inside the inner disk carrier (LT) from a second axial position is guided past the discs (L). The sections (ST) of the ridges (S) act as a damming contour for hydraulic fluid supplied radially from the second axial position.

A brake disk may comprise a friction disk formed of at least one of a carbon fiber-ceramic matrix composite material or a carbon fiber-carbon matrix composite material. A first surface of the friction disk defines a first recess. A first ceramic insert comprising ceramic powder may be located in the first recess.

A method of making a brake pad retention plate and a brake pad retention plate is provided. The method includes upsetting a brake pad facing surface on the retention plate to form a first set of rows having a gutter, or a negative feature such as a depression in the primary plane, in the surface of the retention plate and a tooth feature on a first side of the gutter. The surface of the retention plate is upset to form a second set of rows having a gutter and a tooth feature on the second side of the gutter. The second set of rows being a single row. The second set of rows is placed adjacent to or between first set of rows. A mechanical press is used to deform the tooth to form a base portion and a mezzanine portion extending over a portion of the gutter.

A wet parking brake device includes a shaft case, a rotary shaft, a plurality of stators, a plurality of brake discs, a piston member, and a pressing mechanism. The wet parking brake device is configured such that the brake discs and the stators come in contact with each other by a pressure from the piston member pressed by the pressing mechanism to thereby generate a braking force against the rotary shaft. The pressing mechanism includes a parking rod. The parking rod includes a rod main body, a turning shaft portion, and a connecting shaft. The shaft case includes an opening and a shaft hole. A length of the parking rod, the diameter of the shaft hole and the diameter of the turning shaft portion are respectively designed such that the turning shaft portion is inserted into the shaft hole when the parking rod is inserted from the opening.

A brake pad having a backing plate, friction lining, and a surface coating adhered to the friction lining. The surface coating may be formulated to generate a transfer layer on a brake rotor faster than the fiction lining alone. The surface coating may be adhered to the friction lining in a predetermined design.

A method for producing a molded body of particularly steel, and including a hub and a bell-shaped lower part axially connected thereto, in which an inner contour is made in the lower part by non-cutting forming in a convex region. The inner contour includes of ball tracks and cage paths that are concave in the axial direction and arranged in a peripherally alternating manner, for receiving rolling bodies, the cage paths being shallower than the ball tracks. The hub is formed from a rotating round blank and reducing the thickness thereof using at least one pressure roller. The flat region of the round blank that radially connects to the hub is pressed onto contour segments of a rotating first inner contour tool, partially forming the inner contour using at least one axially and radially moving pressure roller to form a preform of the lower part. The fixed preform is pressed against contour segments of a second inner contour tool by a die of partial dies, fully forming the cage paths and ball tracks.

After a cup bearing (13a) is incorporated into a circular hole (11c) of a coupling arm portion (10c) forming a yoke, a notch (25) having a V-shaped cross section is formed in a portion near the periphery of the circular hole (11c) on an outer side surface of the coupling arm portion (10c). Thereafter, a thin-walled portion (27) having a substantially trapezoidal cross section formed in a radially inner portion of the notch (25) in an opening edge portion of the circular hole (11c) is plastically deformed inward in a radial direction to form a staking portion (14a). Therefore, it is possible to achieve a method of assembling a joint cross type universal joint and a joint cross type universal joint which can form the staking portion for preventing the cup bearing from falling off without complicating the staking work.

Composite parts (10), methods of making the same (400), and tooling systems (200) for making the same are disclosed. According to one example, a high-pressure die casting process is used to manufacture a composite part (10) that is made from a composite metal material (12) with a metal matrix phase (20) and a particle phase (22) and includes an interior region (14) and an exterior region (16), where an average concentration of the particle phase (22) in the composite metal material (12) is higher in the exterior region (16) than in the interior region (14). An interior surface (206a, 206b) of a die mold (206) may be coated with a particle phase (22) (e.g., a ceramic-based material) and a molten metal matrix phase (20) (e.g., an aluminum-based material) may then be introduced into the die mold (206) such that a composite part (10) is formed with an exterior region (16) or outer layer that is particle-rich compared to an interior region (14).

A method produces a synchronizer ring for a synchronizing device in which blocking teeth extending radially outwards or radially inwards are produced by a forging method. The blocking teeth each have a flank portion and two oblique top flanks merging into a common top ridge. A depression is formed on the rear side of a blocking tooth opposite the top ridge.