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Die Casting Services

Lead time from 21 days
ISO9001; ISO14001; IATF16949
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Die Cast Tool Manufacturer

HLH offer pressure die casting services which is great for manufacturing higher volumes of metal parts in aluminium, zinc or magnesium. HLH manufactures high quality die cast tools, offer precision die casting and post process machining and finishing options.

How It Works – Similar to injection moulding but for metals, a mould tool is first manufactured by HLH’s highly skilled toolmakers and engineers. This is then installed on a die casting press and molten metal is injected under pressure into the tool cavity. The parts can then be finished in a range of ways including powder coating and anodising.

Also known as gooseneck casting, hot chamber is the most popular die casting process. A chamber of the injection mechanism is immersed in molten metal and a "gooseneck" metal feed system brings the metal into the die cavity.

Cold chamber die casting is often used to minimize machine corrosion. The molten metal is ladled into the injection system directly, eliminating the need for the injection mechanism to be immersed in the molten metal.

Used For

Die casting is used for low to mid volume metal part production, production metal parts, complex metal parts

Advantages of Die Casting

Lower cost per part
Accurate and repeatable
Good surface finish and range of treatments
Good for larger and more complex parts
HLH Equipment List

What is Die Casting?

Technology Overview

Die casting is the manufacturing process of choice when producing high volumes of relatively complex metal parts. Die cast parts are made in steel molds, similar to those used in injection molding, but use low melting point metals such as aluminum and zinc instead of plastics. Die casting is widely used due to its versatility, reliability and accuracy. To create the die cast part, molten metal is forced into a mold via high hydraulic or pneumatic pressure. These steel molds, or dies, produce extremely complex, high tolerance parts in a repeatable process. More metal parts are made by die casting than by any other casting process.
When it comes to any design, to achieve ultimate project success it is good to check your design against your chosen manufacturing process to see if any changes are needed. For die casting there are many things to consider to ensure you get a better quality of part. Applying proper draft is crucial in die casting to ensure you get a consistent part without warpage or surface defects. The exact amount of draft you need to add depends on the part and tool design but get in touch early in the process and we can advise.
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