A projection of burr is provided by forming an appropriate gap to set a cast-in member to a cast-in mold, completely closing the gap when the cast-in mold is clamped, and correcting cast-in positioning (axis mating) to a die-cast component by a clamping operation of the die-cast mold, regardless of a dimensional precision of the cast-in member upon a manufacture. Steel plate cast-in member 2, wrapped cast except for a bonding portion 2b to a steel plate bonding member 3 upon molding a die-cast component 1, has a mold contact portion 4 at a boundary between a cast-in portion 2a wrapped cast with a die-cast component 1 and the bonding portion 2b. When a cast-in mold A is clamped, the mold contact portion 4 is brought into butting contact with the cast-in mold A, gap S between the cast-in member 2 and the cast-in mold A, cavity a, is closed.

A projection of burr is provided by forming an appropriate gap to set a cast-in member to a cast-in mold, completely closing the gap when the cast-in mold is clamped, and correcting cast-in positioning (axis mating) to a die-cast component by a clamping operation of the die-cast mold, regardless of a dimensional precision of the cast-in member upon a manufacture. Steel plate cast-in member 2, wrapped cast except for a bonding portion 2b to a steel plate bonding member 3 upon molding a die-cast component 1, has a mold contact portion 4 at a boundary between a cast-in portion 2a wrapped cast with a die-cast component 1 and the bonding portion 2b. When a cast-in mold A is clamped, the mold contact portion 4 is brought into butting contact with the cast-in mold A, gap S between the cast-in member 2 and the cast-in mold A, cavity a, is closed.

A checkered composite plate comprises a basal plate and a metal mesh; the material of the basal plate is aluminum; the metal mesh is embedded at the upper end of the basal plate and fixedly connected with the basal plate; the upper end of the metal mesh extends to the upper part of the basal plate; and the metal mesh forms raised checkers above the basal plate. In the checker composite plate of the present invention, the metal mesh is compounded on the upper end of the basal plate made of aluminum, so that the surface hardness of the aluminum basal plate is enhanced, thereby solving the defect that the aluminum basal plate is soft and not wear-resistant, solving the defect that the common composite plate is easy to deform when heated due to different stress of different materials.

Provided is a casting mold with which it is possible to apply air-blow to a bottom part of a groove in a core without moving forward/backward the core relative to the mold body. This casting mold is provided with a first mold and a second mold for forming, between the first mold and the second mold, a cavity used to produce a cast article, wherein the second mold has a second mold body and a core, which protrudes from the second mold body in a first direction toward the first mold and is used to forms a hollow part in the cast article, the core is provided with a groove part that opens in the first direction and is recessed in a second direction opposite from the first direction, and the second mold is provided with an air supply flow passage for supplying air for blowing toward a bottom part of the groove part.

Provided is a casting mold with which it is possible to apply air-blow to a bottom part of a groove in a core without moving forward/backward the core relative to the mold body. This casting mold is provided with a first mold and a second mold for forming, between the first mold and the second mold, a cavity used to produce a cast article, wherein the second mold has a second mold body and a core, which protrudes from the second mold body in a first direction toward the first mold and is used to forms a hollow part in the cast article, the core is provided with a groove part that opens in the first direction and is recessed in a second direction opposite from the first direction, and the second mold is provided with an air supply flow passage for supplying air for blowing toward a bottom part of the groove part.

A method of over-molding a hybrid sub-assembly onto a base structure includes providing a mold for an over-molding process. The mold may comprise a lower mold tool, an upper mold tool, and a tube locator positioned on one of the upper mold tool or lower mold tool. A base structure formed of a first material is located into the tube locator. A mandrel tool is inserted into an opening in the base structure. The upper and lower mold tools are closed and clamped shut. A second material, such as a lighter weight or lower density material is heated to at least a semi-solid or slurry state. The semi-solid or slurry is injected into the mold to form a molded sub-assembly that is mechanically bonded to the base structure.

A method of over-molding a hybrid sub-assembly onto a base structure includes providing a mold for an over-molding process. The mold may comprise a lower mold tool, an upper mold tool, and a tube locator positioned on one of the upper mold tool or lower mold tool. A base structure formed of a first material is located into the tube locator. A mandrel tool is inserted into an opening in the base structure. The upper and lower mold tools are closed and clamped shut. A second material, such as a lighter weight or lower density material is heated to at least a semi-solid or slurry state. The semi-solid or slurry is injected into the mold to form a molded sub-assembly that is mechanically bonded to the base structure.

A differential carrier case with an inserted pipe for high pressure casting may include a mold core into which a first end of a pipe is inserted, a mold core pin fixed to the mold core to fix the mold core and the first end of the pipe, a drive core pin inserted into a second end of the pipe, and a thick portion surrounding an outer portion of the pipe.

A differential carrier case with an inserted pipe for high pressure casting may include a mold core into which a first end of a pipe is inserted, a mold core pin fixed to the mold core to fix the mold core and the first end of the pipe, a drive core pin inserted into a second end of the pipe, and a thick portion surrounding an outer portion of the pipe.

Method for manufacturing a gas burner of the type comprising a cup, provided with at least one tubular tapered part of a mixer with axial Venturi effect, and shaped to couple with a burner head provided with at least one flame-spreader, wherein said cup is made in a single piece by casting or die-casting in an apposite mold. Such a method comprises, in sequence, the following steps: a) arranging a mold with at least two shells, for casting or die-casting the afore said cup; b) arranging at least one core which could be removably inserted into the respective mold, which has at feast one jutting portion shaped with at least one tubular tapered part of the stickle of the afore said mixer with axial Venturi effect; c) inserting such a core into the mold and closing the afore said at least two mold shells so that the afore said at least one jutting portion of the core is retained, at least partially, at a distance from the opposite inner walls of the closed mold; the core and the mold being shaped so that at least one ending part of such a core replaces, at least partially, part of the perimetrical area of the cup defined by the mold; d) pouring or pressure-injecting molten metal material into the closed mold; e) opening the mold, drawing out the afore said core and then removing the die formed cup after the metal material is solidified; f) applying at least one closing plug to the side hole (or side holes) of the die formed cup which corresponds/correspond to the ending part of the core which replaced part of the perimetrical area of the cup in the mold.