Provided is a press forming method for a semi-solid material, including: a semi-solid material carrying step of carrying a semi-solid material into a lower die; a first press forming step of regulating, under a Z-direction regulation state in which a change in the Z direction's dimension corresponding to a pressing direction is regulated by an upper die, a change in one of the dimensions in X and Y directions by compressing the material with a transverse punch so that the one becomes equal to a dimension of the product, and then stopping the punch at a position of the compression; and a second press forming step of moving, under a state in which the change in the one is regulated in the above step, the upper die in the pressing direction to compress the material so that the Z direction's dimension becomes equal to the product's dimension.

A method of producing a microstructure of a high-alloy steel includes heating the metal stock to a temperature between 1270° C. and 1280° C., at a rate between 40° C./s and 45° C./s, followed by compression applied to the metal stock in a thixotropic process, after which the stock is cooled to ambient temperature. A microstructure is also shown, which includes undissolved metal carbides in the form of globular particles of austenite microstructure and of martensite microstructure.

A composite equal additive manufacturing method: S1, obtaining molten metal by using a metal smelting device; S2, first, storing inflow molten metal in an intermediate container, and then transferring the molten metal into a crystallizer; S3, cooling the molten metal to a solid-liquid mixed state by using the crystallizer, and enabling a high-temperature blank body with a required section to flow out from an outlet of the crystallizer; S4, arranging plastic forming tools at a bottom of the outlet of the crystallizer, and performing plastic forming on the outflow high-temperature blank body; S5, fixing a lower end of a part after the plastic forming and slowly descending the part by a chuck; S6, machining the part by using point forming machines, and synchronously controlling the machining temperature of the part; and S7, descending the chuck to an appropriate position, and taking the formed part out from the machine frame.

A metal matrix nanocomposite includes: (1) a matrix including an aluminum alloy; and (2) nanostmctures dispersed in the matrix, wherein the matrix includes grains having aspect ratios of about 3 or less. Manufacturing processes include subjecting the nanocomposite to solidification processing, fusion welding, extrusion, thixocasting, additive manufacturing, and heat treatment.

A composite equal additive manufacturing method: S1, obtaining molten metal by using a metal smelting device; S2, first, storing inflow molten metal in an intermediate container, and then transferring the molten metal into a crystallizer; S3, cooling the molten metal to a solid-liquid mixed state by using the crystallizer, and enabling a high-temperature blank body with a required section to flow out from an outlet of the crystallizer; S4, arranging plastic forming tools at a bottom of the outlet of the crystallizer, and performing plastic forming on the outflow high-temperature blank body; S5, fixing a lower end of a part after the plastic forming and slowly descending the part by a chuck; S6, machining the part by using point forming machines, and synchronously controlling the machining temperature of the part; and S7, descending the chuck to an appropriate position, and taking the formed part out from the machine frame.

The present invention relates to an additive manufacturing system and its methods. The system includes a material conveyor, an energy source, and a micro-forging device. The material conveyor is configured to convey material. The energy source is configured to direct an energy beam toward the material, the energy beam fuses at least a portion of the material to form a solidified portion. The micro-forging device is movable along with the material conveyor for forging the solidified portion, wherein the micro-forging device comprises a first forging hammer and a second forging hammer, the first forging hammer is configured to impact the solidified portion to generate a first deformation, and the second forging hammer is configured to impact the solidified portion to generate a second deformation greater than the first deformation.

A material and method for manufacturing components. The method includes squeeze casting the material into a component of a desired shape and flow-forming the component that has been squeeze cast to refine the shape of the component. The method also includes heat treating the component to enhance the microstructure of the component and machining the component to further refine the shape.

Provided is a press forming method for a semi-solid metal material, including: manufacturing a semi-solid metal material in a container having an upward opening by injecting molten metal into the container, and cooling the molten metal while stirring the molten metal; inverting the container and storing the semi-solid metal material in a temporary storage space; discharging a liquid phase part from the semi-solid metal material through the inverting; and pressing the semi-solid metal material by feeding the semi-solid metal material, from which the liquid phase part is discharged, into dies of a pressing machine.

A cast molding method accomplishes the cast molding by a smelting chamber, a casting chamber, a hinge press system and a vacuum system. First, a metallic die is assembled in the casting chamber and then a metallic material is put in the smelting chamber. Next, the metallic material is heated up in a vacuum state and the casting chamber is pre-heated at a same time. After the metallic material in the smelting chamber has been melted down and the casting chamber has been vacuumized, the melted metallic material is filled into the metallic die, and then the hinge press system is turned on to cast mold the metallic die, resulting in a semi-solid product. After the semi-solid product has been cooled down, the product of cast molding is accomplished according to the present invention.