OEM Aluminum Alloy Die Casting Mold for Computer Cooling Shell

This computer cooling housing is made from ADC12, which is a typically aluminum alloy die-casting with electronic plated. The surface finishing process contains batching, machining, oxidation. The number of parting surfaces of die casting mold is multiple parting surfaces. The die-casting mold cavity number is multi-cavity mold. The die-casting mold installation method: semi-fixed die-casting mold. The main processing equipment contains: die-casting machine, punching machine, CNC polishing machine, drilling machine, tapping machine. The process flow: die casting → punching → rolling grinding → batching → lathe → oxidation → salt spray test → full inspection. Our quality standard is based on ISO900, the inspection frequency: AQL=0.56. The tolerance is ±0.01 mm. Mould core material is imported MS 8407 mould steel, mould core hardness is 48-52HRC, Mould life 500,000 mould times. Daily production capacity of a single set of moulds 5000 pcs.

Material Selection

The main die casting alloys are: aluminium, zinc, magnesium, copper, lead, and tin; although uncommon, ferrous die casting is also possible. Specific die casting alloys include: zinc aluminium; aluminium to, e.g. The Aluminum Association standards: AA 380, AA 384, AA 386, AA 390; and AZ91D magnesium. The following is a summary of the advantages of each alloy:
1. Aluminium: lightweight; high dimensional stability for very complex shapes and thin walls; good corrosion resistance; good mechanical properties; high thermal and electrical conductivity; retains strength at high temperatures.
2. Zinc: the easiest metal to cast; high ductility; high impact strength; easily plated; economical for small parts; promotes long die life.
3. Magnesium: the easiest metal to machine; excellent strength-to-weight ratio; lightest alloy commonly die cast.
4. Copper: high hardness; high corrosion resistance; highest mechanical properties of alloys die cast; excellent wear resistance; excellent dimensional stability; strength approaching that of steel parts.
5. Silicon tombac: high-strength alloy made of copper, zinc and silicon. Often used as an alternative for investment cast steel parts.
6. Lead and tin: high density; extremely close dimensional accuracy; used for special forms of corrosion resistance.
As of 2008, maximum weight limits for aluminium, brass, magnesium, and zinc castings are estimated at approximately 70 pounds (32 kg), 10 lb (4.5 kg), 44 lb (20 kg), and 75 lb (34 kg), respectively. By late-2019, press machines capable of die casting single pieces over-100 kilograms (220 lb) were being used to produce aluminium chassis components for cars.

Material Selection

Metal Minimum section Minimum draft
Aluminium alloys 0.89 mm (0.035 in) 1:100 (0.6°)
Zinc alloys 0.63 mm (0.025 in) 1:200 (0.3°)
Brass and bronze 1.27 mm (0.050 in) 1:80 (0.7°)
Magnesium alloys 1.27 mm (0.050 in) 1:100 (0.6°)

de_ATGerman
Powered by TranslatePress

Get a Free Quote

Please provide your details below and we will contact you within 24 hours to send back our offer.

Inquiry
Inquiry