Die casting is a fast, cost-effective manufacturing process for production of high volume, net-shaped, tight tolerance metal components. It has the benefit of increased quality and repeatability, often at lower costs compared to other processes. The die casting process is the injection under high pressure into a steel mould (or tool) of a molten metal alloy, which solidifies rapidly (from milliseconds to a few seconds) to form a net shaped component and is then automatically extracted. The die casting tool will typically produce any number of components from hundreds of thousands to millions, before requiring replacement. Benefits of Hua Xing die castings:

• Cost-effective high volume production
• Value engineering achieves cost savings
• Part consolidation eliminates operations
• Manufacture of complex net shapes
• Consistent quality over high volumes
• Tight tolerances achieved as cast
• Minimal draft angles on internal features
• Long tool die life
• Lower tool cost on multi-slide process

• Aluminum die cast parts ± .05mm.
• Add ± .025mm to ±.38mm across parting line depending on size.
  
  Surface Finish: 32-63RMS.
  
  Minimum Draft Requirements: Aluminum 1° to 3°.
  
  Normal Minimum Section Thickness:
• Aluminum die cast parts: 1.52mm small parts, 2.30mm medium parts.

  Ordering Quantities: Usually 1,000 and up but sometimes as few as a hundred.

  Normal Lead Time:

• Tooling: Sometimes as little as 4 weeks or as much as 12 weeks.
• Samples: Usually the week the die is available.
• Production: Starts usually within two weeks (sometimes less) after approval.
  

Gravity die casting is a process wherein the liquid metal is poured into metallic moulds without application of any external pressure. The liquid metal enters the cavity by gravity. Gravity die casting (GDC) is different from High Pressure Die Casting (HPDC), where the liquid metal is injected into the metal mould under very high pressures for production of thin walled smaller castings with better dimensional accuracy and surface finish The main advantage of gravity die casting over sand casting is the high speed of production. The reusable die tooling allows for many hundreds of castings to be produced in a day. High definition parts reduce machining costs and superior surface finish reduces finishing costs.

Gravity die casting is a manufacturing process for producing accurately dimensioned, sharply defined, smooth or textured-surface metal parts. It is accomplished by gently pouring molten metal into reusable metal dies under the force of gravity. The term, "die casting," is also used to describe the finished part.

To begin the process, a cast iron mould capable of producing tens of thousands of castings must be made in at least two sections to permit removal of castings. These sections are mounted securely to a solid base and are arranged so that one is stationary (fixed die half) while the other is moveable (ejector die half).

To begin the casting cycle, the die caster clamps the two die halves tightly together. Molten metal is poured into the die cavity where it solidifies quickly. The die halves are drawn apart and the casting is ejected. Die casting dies can be simple or complex, having moveable slides, cores, or other sections depending on the complexity of the casting.

Although die-castings are in most cases cheaper than sand castings, die tooling is considerably more expensive than sand tooling so an optimum number of castings need to be produced to make the process cost effective in the long run.

Gravity Die Casting Tolerances:

0----50 ± 0.20mm

50—100 ± 0.30mm

100—150 ± 0.40mm

150-200 ± 0.50mm

Materials avaliable in Aluminium alloy and Zinc alloy