Custom Zinc Alloy Die Casting Service for Smart Lock Housing

We are the leading supplier of precision metal components to the various industries with capabilities ranging from less than one hundredth of a gram to one kilogram, in zinc, aluminum, and magnesium. Supplying customers globally, we are accustomed to working to the just-in-time supply requirements of the die casting services and Tier-1 manufacturers. Manufacturing billions of components each year, we consistently meets the industry’s most stringent quality standards and tolerances.
This zinc alloy die casting parts is made for the smart lock, it is the typically high pressure die casting part in green sand molding. This custom die casting zinc parts is very precision, the tolerance is ±0.001mm. The coating layer have been analysed in terms of hardness, friction adhesion and resistance to wear at high temperatures. We can supply various materials, surface treatments and tolerances options for our customers when they want to customize the die casting services.

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°)

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