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 selectively reinforced component comprises a metal body with at least one metal matrix composite insert embedded in a first surface of the metal body, with at least one weld bonding an outer surface of the metal matrix composite insert to the metal body. The selectively reinforced component is formed by introducing the or each metal matrix composite insert into a recess in the first surface of the metal body, before forming the at least one weld to bond the outer surface of the metal matrix composite insert to an opposing inner peripheral surface of the recess.

A selectively reinforced component comprises a metal body with at least one metal matrix composite insert embedded in a first surface of the metal body, with at least one weld bonding an outer surface of the metal matrix composite insert to the metal body. The selectively reinforced component is formed by introducing the or each metal matrix composite insert into a recess in the first surface of the metal body, before forming the at least one weld to bond the outer surface of the metal matrix composite insert to an opposing inner peripheral surface of the recess.

A holding device for holding a casting core in a casting mold, especially in a die-casting mold, includes a plurality of clamping sections which are positioned in relation to each other in such a way that a clamping region for a casting core is formed.

A method to manufacture a tubular element for transferring abrasive materials such as concrete, inert materials or suchlike, wherein the tubular element comprises an internal tubular component made of chromium carbide or other wear-resistant material, and an internal tubular component in contact with and coaxial to the internal tubular component and made of composite material.

A method to manufacture a tubular element for transferring abrasive materials such as concrete, inert materials or suchlike, wherein the tubular element comprises an internal tubular component made of chromium carbide or other wear-resistant material, and an internal tubular component in contact with and coaxial to the internal tubular component and made of composite material.

A method of forming high quality metallurgical bonds in a composite casting is provided. The bonding technology of this invention includes the step of introducing a liquid material to contact the solid components placed in a mold cavity, applying an external field to generate stirring near the solid/liquid interface to wash off bubbles and oxide particles that prevent the liquid material from reacting to the solid component, and causing progressive solidification from the surfaces of the solid component to the liquid to drive away bubbles in the mushy zone near the bonding region. High quality metallurgical bonds are formed within the composite casting after the liquid solidifies. The resultant large composite casting has minimal defects, such as pores and oxides, at the interfaces between the solidified material and the solid objects.

A method of fabricating a drill bit is described. The method includes forming a mold with interior surfaces defining a mold cavity within the mold, the mold cavity having a shape corresponding to a shape of a body of the drill bit; forming catalyst-free synthesized polycrystalline diamond compact (PDC) cutting elements using an ultra-high pressure and temperature process; determining positions of the catalyst-free synthesized PDC cutting elements within the mold cavity; placing the catalyst-free synthesized PDC cutting elements at the determined positions within the mold cavity; filling the mold cavity with matrix materials of the body of the drill bit; and bonding the catalyst-free synthesized PDC cutting elements with the matrix materials of the body to form an impregnated drill bit.

A composite wear part may include a ferrous alloy matrix and at least one ceramic reinforcement in the form of an insert having an openwork structure. The openwork structure includes a plurality of blind holes. The blind sides of the holes are positioned on the side of the composite wear part most exposed to wear.

A composite wear part may include a ferrous alloy matrix and at least one ceramic reinforcement in the form of an insert having an openwork structure. The openwork structure includes a plurality of blind holes. The blind sides of the holes are positioned on the side of the composite wear part most exposed to wear.