Casting methods


A manufacturing method for pressing molten metal into a mold to create a product with a precise, clean-cast surface.

Die-casting machine
A machine that carries out die-casting. Modern die-casting machines feature advanced mechanization and automation options and can pump out molten metal, press molten metal into molds, and open and close molds.
Vacuum die-casting

A method of casting products with fewer entrapped cavities by decompressing the inside of products (cavity parts) formed in molds.

Squeeze die-casting

A casting method that uses pressurizing pins during solidification to apply pressure in the vicinity of sites where shrinkage cavities are likely to occur. Also known as local pressurized die-casting.

Molten metal
Melted metal or alloy.

Die-casting machines

Die-casting machines

Comprises various parts, including a clamping part that opens and closes the mold on two sides—one being fixed and one being movable, an injection part for pressing molten metal into the mold, and an extrusion part for pushing the die-casting out of the mold. Die-casting machines are classified into two types: cold chamber and hot chamber.

Cold-chamber die-casting machine

A casting method for which the injection part exists outside the furnace and molten metal is conveyed to the injection part.

Hot-chamber die-casting machine

A die-casting machine for which the injection part is immersed in the molten metal and thus heated.

Mold-clamping force

The force exerted by a die-casting machine to clamp the mold. The force is expressed in tons and is a measure of the size of the die-casting machine.


A ladle for pumping in molten metal.


A device for pumping molten metal inside the pressurization chamber into the mold.

Machine sleeve

A metal cylinder into which molten metal is incorporated.

Plunger tip

A part that pushes molten metal from the sleeve into the mold.



A metal casting mold used for the production of die-cast products.

Fixed mold

A mold attached to the fixed plate on a die-casting machine; connected to it is a machine sleeve.

Movable mold

A mold attached to the movable plate on a die-casting machine; attached to it is an extrusion mechanism.

Main mold

The outer part of a mold; assembled onto it are inserts and flow dividers.


The part into which the shape of the product part is primarily engraved; it is assembled onto the main mold.

Mold-partitioning surface

The boundary surface between the movable and fixed molds; also referred to as a PL surface.

Drawing core (slide core)

Also known as a slide core; it is a movable insert that is put into place to form an undercut shape.

Flow divider (distributor spool core)

The part of the mold with which molten metal that is pushed in from the plunger tip comes into contact first.


The part of the path through which molten metal flows through to the product part.


The part that connects the runner and product and the product and any overflow.


The part behind the product part through which molten metal exits.

Core pin

A part that forms hole shapes in the product; each one is incorporated into an insert.

Extrusion pin

A pin that slides when the product is removed from the mold.

Mold-release agent

A lubricant that is applied to facilitate the removal of the product from the mold.

Casting plan

The path through which molten metal flows from the casting opening to the product part.

Inclined pin

An inclined pin is a pin that moves the slide core using the force of the mold being opened where the undercut shape of the molded product is processed with the slide structure in the mold.


A hollow part formed in the mold.

Product molding


A shape that prevents the product from being ejected against the mold-opening direction. Primarily formed with slide cores.


An incline that is set in the shape of the product to facilitate the removal of the product.


Forms at mold boundaries (mold-dividing surfaces); burrs are long and thin.


Void formed inside the product; cavities are classified into shrinkage cavities and entrapment cavities.


Void formed inside the product; cavities are classified into shrinkage cavities and entrapment cavities.

Shrinkage cavity

A cavity that forms in parts where the wall of the product is thick and where solidification takes place slowly.


When molten metal comes into contact with the mold, the surface of the mold coarsens, which causes the surface of the product to become uneven.

Circulation of molten metal

Describes the spreading of molten metal to every nook and cranny of the mold.

High cycle

The time it takes to create one product is the cycle time; high cycle refers to a cycle that is completed quickly.