An insert including a taper is covered with a molten metal. A metal molded product with the insert joined thereto is generated by semi-cooling the molten metal to a press-fitting temperature which is higher than a recrystallization temperature of the molten metal and lower than a melting point of the molten metal. A fitting hole which is filled with the insert is formed in the metal molded product. The taper is fitted into the fitting hole. An undercut is not formed in front of a tip of the taper. The insert is press-fitted into the fitting hole while pressing and extending the fitting hole with the taper in a thinning direction of the taper at a press-fitting temperature. The metal molded product is further cooled with the press-fitting maintained.

An apparatus for the die casting in the semisolid state of objects made of brass, bronze, alloys of aluminum, magnesium and light alloys and the like, includes an upper die part adapted to be mated with a lower die part, the mating between the upper die part and the lower die part forming a casting cavity, a furnace being arranged below the lower die part and being provided with a duct for feeding liquid metal which connects to the casting cavity. The upper die part is provided with a cavity in which a forging piston can move freely, the piston accommodating internally a flow control plunger, and having, between the upper die part and the lower die part, circumferentially around the part to be cast, a vacuum channel connected to the casting cavity by at least one venting channel.

An apparatus for the die casting in the semisolid state of objects made of brass, bronze, alloys of aluminum, magnesium and light alloys and the like, includes an upper die part adapted to be mated with a lower die part, the mating between the upper die part and the lower die part forming a casting cavity, a furnace being arranged below the lower die part and being provided with a duct for feeding liquid metal which connects to the casting cavity. The upper die part is provided with a cavity in which a forging piston can move freely, the piston accommodating internally a flow control plunger, and having, between the upper die part and the lower die part, circumferentially around the part to be cast, a vacuum channel connected to the casting cavity by at least one venting channel.

The invention relates to a method and a device for casting a melt 4 of a metallic material by means of a furnace 2 of a low pressure casting device, which furnace 2 has a receiving space 3 and a riser tube protruding into said receiving space 3. By pressurizing the receiving space 3 with compressed air, the melt 4 in the riser tube 12 of the furnace 2 is pressed into a mold cavity 10 of a mold 7, wherein simultaneously, a magnetic field acting against the conveying direction 23 of the melt 4 is applied to the melt 4 of the metallic material by means of a magnetic element 16 arranged in the region of the riser tube 12.

The invention relates to a method and a device for casting a melt 4 of a metallic material by means of a furnace 2 of a low pressure casting device, which furnace 2 has a receiving space 3 and a riser tube protruding into said receiving space 3. By pressurizing the receiving space 3 with compressed air, the melt 4 in the riser tube 12 of the furnace 2 is pressed into a mold cavity 10 of a mold 7, wherein simultaneously, a magnetic field acting against the conveying direction 23 of the melt 4 is applied to the melt 4 of the metallic material by means of a magnetic element 16 arranged in the region of the riser tube 12.

Aspects herein are generally directed to a fastener having a disco-rectangular cross-sectional shape. This shape is advantageous for purposes of gripping and as the disco-rectangular shape provides a gap between the edges of a countersunk bore and the edges of the disco-rectangular shape. As such, a user of the disco-rectangular shape may be able to grip the edges of the disco-rectangular shape, with fingers or any other type of tool.

The present disclosure relates to a tilt casting mold, a tilt casting apparatus, and a tilt casting method that can manufacture a molded product with a small quality difference without compensation for contraction of molten metal by forming a riser on a tilt casing mold and pressing the riser. According to an embodiment, there is provided a tilt casting mold that includes a cope and a drag, in which when the cope and the drag are combined, a predetermined cavity is formed therein and a riser is formed on a side of the cavity; a pouring cup is coupled to a surface having the riser of the drag; molten material is poured in the pouring cup and then the molten metal in the pouring cup is injected into the cavity by tilting the mold assembly composed of the cope, the drag, and the pouring cup.

The present disclosure relates to a tilt casting mold, a tilt casting apparatus, and a tilt casting method that can manufacture a molded product with a small quality difference without compensation for contraction of molten metal by forming a riser on a tilt casing mold and pressing the riser. According to an embodiment, there is provided a tilt casting mold that includes a cope and a drag, in which when the cope and the drag are combined, a predetermined cavity is formed therein and a riser is formed on a side of the cavity; a pouring cup is coupled to a surface having the riser of the drag; molten material is poured in the pouring cup and then the molten metal in the pouring cup is injected into the cavity by tilting the mold assembly composed of the cope, the drag, and the pouring cup.

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.

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.