Die Cast Tooling

Quality Die Cast Tools....

HMT has the technology and knowledge to design and produce quality die cast tools for simple to the most complex parts. We are also able to handle your production runs and assembly.


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Why HMT Should be Your Die Cast Tooling Providers

Die casting is a versatile process for producing engineered metal parts by forcing metal under high pressure into steel moulds. These moulds are called dies and can be designed to produce complex shapes with a high degree of accuracy and repeatability. Parts can be sharply defined, with smooth or textured surfaces.

HMT can provide die cast products in a variety of sizes, shapes and wall thickness, that are strong, durable and dimensionally precise.

Die castings can provide integral fastening elements, such as bosses and studs. Holes can be made to tap drill sizes or external treads can be cast.

Type of dies:

1. Single cavity, to produce one component.

2. Multiple cavities, to produce a number of identical parts.

3. Unit die, to produce different parts at one time.

4. Combination die, to produce several different parts for assembly.

Each of the metal alloys available for die casting offer particular advantages for the completed part.

Zinc - The easiest alloy to cast, it offers high ductility, high impact strength and is easily plated. Zinc is economical for small parts, has a low melting point and promotes long die life.

Aluminium - This alloy is lightweight, while possessing high dimensional stability for complex shapes and thin walls. Aluminium has good corrosion resistance and mechanical properties, high thermal and electrical conductivity, as well as strength at high temperatures.

Magnesium - The easiest alloy to machine, magnesium has an excellent strength-to-weight ratio and is the lightest alloy commonly die cast.

Copper - This alloy possesses high hardness, high corrosion resistance and the highest mechanical properties of alloys cast. It offers excellent wear resistance and dimensional stability, with strength approaching that of steel parts.

Lead and Tin - These alloys offer high density and are capable of producing parts with extremely close dimensions. They are also used for special forms of corrosion resistance.

Machine accuracy is essential on die cast dies. HMT have accurate, stable and rigid machines needed to deliver the tolerance and performance required in die cast tooling.