die casting tolerances die casting - advantages and disadvantages

by:Hanway     2019-08-10
Die casting is a commonThe consumption technology of metal being forced into the cavity under high pressure.Die Casting molds known as molds can be reused for the production of castings of various sizes, shapes and wall thickness.The mold cavity adopts a complex design that enables the production of complex shapes with precision, surface finish and attraction..

In the early days of die casting, only lowUsing a high-pressure injection method, but it's high today.Pressure casting technology such as extrusion casting and semi-extrusion castingSolid die casting method, casting more than 4500 pounds per square inch.Originally, only tin and lead were mold castes, but now also cast magnesium, copper and other alloys using this very popular process.

In this process, the molten metal or other material is forced into the cavity of the steel mold under high pressure.The mold is two-part mold made of Alloy Tool SteelHalf of the fixed mold and half of the top Rod mold.The mold or mold is made with the impression of the part to be cast.

The molten metal is injected into the mold at high pressure and high speed, which helps to produce castings as smooth and accurate as the original mold.Keep the pressure on the mold until the hot metal sets.When the metal is hardened, open the mold to remove the casting.
There are several variations in the basic process that can be used to produce castings for specific applications.
Squeeze casting-A method of casting a molten alloy at high pressure without creating turbulence and gas trapping to produce a high quality, dense, heat-resistant component.
Semi-solid molding -One and a halfCast solid metal blanks are intended to provide dense, heat-treated castings with a low porosity.

Aluminum, copper, lead, zinc and tin-based alloys are mainly used in moldscasting.

In modern times, Precision Die Casting machines are used to ensure consistent quality control.Each processing moldCasting varies in the way the molten powder is poured into the mold.The automatic device is used to lubricate the mold, pour the metal into the chamber, etc.The two processes used in die casting are called hot chamber and cold chamber methods.

Die Casting is best suited for medium parts with complex casting details.Die-Casting is the largest casting technology used to manufacture consumer goods, commercial and industrial products such as cars, toys, sink faucet parts, connector housing, gears.Most die castings are from non-Black metal such as aluminum and magnesium.

The mold can be reused.

The weight of the casting must be between 30g.

High initial cost.
High Limit-Liquid metal.
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