A casting method includes preparing a thin shell mold which is sintered and placed in a box. Sands are buried in the box to encompass the thin shell mold. The pressure chamber is depressurized. The casting material is filled into the thin shell mold, such that the thin shell mold is disposed at a vacuum state. Then, the negative pressure of the pressure chamber is released. Then, the pressure chamber is pressurized, to form a pressure difference which presses the casting material to flow into the thin shell mold, thereby finishing the casting work. The temperature of the casting material is reduced, and the pressure in the pressure chamber is increased. Then, the casting material is cooled to form a casting product. Then, the thin shell mold is broken, and the casting product is removed.

A multi-position parallel pressurized casting device for large aluminum alloy castings and method thereof are provided. The device includes a platform, a top surface of the platform is a working surface, and a bottom of the platform is provided with a holding furnace. A number of the holding furnace is two or more, and each holding furnace is connected to a liquid filling port corresponding to the working surface by a separate lift device, and the holding furnaces can achieve independent liquid level pressure control or synchronization liquid level pressure control in any combination by a lift control system; and a cover body is also provided on the working surface, the cover body and the working surface form a sealed working chamber. A vacuum-pumping system and an inert gas replacement system for the working chamber and/or the holding furnace are further provided.

A multi-position parallel pressurized casting device for large aluminum alloy castings and method thereof are provided. The device includes a platform, a top surface of the platform is a working surface, and a bottom of the platform is provided with a holding furnace. A number of the holding furnace is two or more, and each holding furnace is connected to a liquid filling port corresponding to the working surface by a separate lift device, and the holding furnaces can achieve independent liquid level pressure control or synchronization liquid level pressure control in any combination by a lift control system; and a cover body is also provided on the working surface, the cover body and the working surface form a sealed working chamber. A vacuum-pumping system and an inert gas replacement system for the working chamber and/or the holding furnace are further provided.

A vehicle wheel, or other axisymmetric shaped article, is formed of an aluminum-based alloy by a combination of a liquid forging step of a pre-form shape of the wheel and a subsequent solid-state flow forming step to complete the specified shape of the wheel. An aluminum-based alloy, containing specified amounts of zinc, silicon, and magnesium is devised for use in the forming process. The composition of the aluminum-based alloy is devised to facilitate the performance of each forming step of the article and the mechanical properties of the final shaped product.

A vehicle wheel, or other axisymmetric shaped article, is formed of an aluminum-based alloy by a combination of a liquid forging step of a pre-form shape of the wheel and a subsequent solid-state flow forming step to complete the specified shape of the wheel. An aluminum-based alloy, containing specified amounts of zinc, silicon, and magnesium is devised for use in the forming process. The composition of the aluminum-based alloy is devised to facilitate the performance of each forming step of the article and the mechanical properties of the final shaped product.

Disclosed is an apparatus for pressing a plunger to form an ingot. The apparatus includes a base block having a tilted surface, a pair of guide rails disposed on left and right sides of the tilted surface of the base block, a support disposed on bottom ends of the guide rails and on which a molding frame is mounted, a sliding block which slides along the pair of guide rails and presses a plunger protruding upward from the molding frame, a pair of rotational frames coupled to be rotatable on hinges mounted below the pair of guide rails, and a pair of connection links having both longitudinal sides connected to the support and the rotational frames in a rotatable structure to move the sliding block downward when the rotational frames rotates downward.

Disclosed is an apparatus for pressing a plunger to form an ingot. The apparatus includes a base block having a tilted surface, a pair of guide rails disposed on left and right sides of the tilted surface of the base block, a support disposed on bottom ends of the guide rails and on which a molding frame is mounted, a sliding block which slides along the pair of guide rails and presses a plunger protruding upward from the molding frame, a pair of rotational frames coupled to be rotatable on hinges mounted below the pair of guide rails, and a pair of connection links having both longitudinal sides connected to the support and the rotational frames in a rotatable structure to move the sliding block downward when the rotational frames rotates downward.

A method (S) for manufacturing a part (1) out of a metal matrix composite material, including the following steps: opening (S1) a device (10) that includes a supporting portion (14) and a molding portion (14); placing (S2) a fibrous reinforcement into the device (10); sealably closing (S3) the device (10) by providing a space between the fibrous reinforcement (2) and the device portions; feeding (S4) the molten metal matrix (3) into the device (10) such as to fill the space between the fibrous reinforcement (2) and the device portions (13, 14); and applying (S5) a force onto the equipment (10) such as to impregnate the fibrous reinforcement (2) with the metal matrix (3).

A method (S) for manufacturing a part (1) out of a metal matrix composite material, including the following steps: opening (S1) a device (10) that includes a supporting portion (14) and a molding portion (14); placing (S2) a fibrous reinforcement into the device (10); sealably closing (S3) the device (10) by providing a space between the fibrous reinforcement (2) and the device portions; feeding (S4) the molten metal matrix (3) into the device (10) such as to fill the space between the fibrous reinforcement (2) and the device portions (13, 14); and applying (S5) a force onto the equipment (10) such as to impregnate the fibrous reinforcement (2) with the metal matrix (3).

The present application discloses a ceramic preform, a method of making a ceramic preform, a MMC comprising a ceramic preform, and a method of making a MMC. The method of making a ceramic preform generally comprises preparing reinforcing fibers, preparing a ceramic compound, and forming the compound into a desired shape to create the ceramic preform. In certain embodiments, the ceramic compound is formed as either a disc or a ring for use in a brake disc metal matrix composite. The metal matrix composite generally comprises the ceramic preform infiltrated with a molten metal to form the brake disc metal matrix composite. The method of making the metal matrix composite generally comprises heating the ceramic preform, placing the ceramic preform in a mold cavity of a die cast mold, and introducing molten metal into the mold cavity to infiltrate the ceramic preform to form the brake disc metal matrix composite.