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When developing high pressure die cast parts, weight can be a decisive factor for both function and performance. In applications where load or movement is affected by the part’s weight, the choice of material is important even in the design phase.
Due to its low density, magnesium is used for high pressure die cast parts where it is important to achieve a low overall weight and reduce weight without compromising the parts' functional properties.
The first step in magnesium high pressure die casting is to melt the metal and inject it into a tool under high pressure. With careful planning and rapid filling using modern machinery, it is possible to produce intricate geometries with high precision.
Once the tool cavity is filled, the material is stabilised under controlled pressure whilst it solidifies. The part is then cooled, removed from the tool and sent on to the next stage of the production process.
Magnesium is characterised by its low density and good casting properties, which influence how the material flows during high pressure die casting.
The material’s properties in both the molten and solidified states place demands on process control and tool design to ensure uniform filling and consistent results.
When magnesium is used in high pressure die casting, it offers a range of properties that are particularly relevant for lightweight parts.
Magnesium is one of the lightest materials used in high pressure die casting. The material makes it possible to achieve a low parts weight, which can be important in applications where weight affects performance, energy consumption or other aspects.
The material creates a smooth, nice finish straight from the tool, reducing the need for post-processing to meet visual requirements.
Magnesium has excellent flow properties, making it possible to fill tools with complex geometries and thin wall thicknesses. Combined with high injection pressure in the high pressure die casting process, parts with advanced shapes can be cast directly in the tool.
Magnesium casting is the right choice when the weight of the parts has a direct impact on function, performance or application. This applies, for example, to moving systems where lower mass reduces the load, or to handheld products where weight affects ergonomics and the user experience.
The material is also a good choice when you want to combine low weight with complex geometry in a single part. For designs requiring a balanced combination of weight and strength, aluminium die-casting may be an alternative. For parts where very tight tolerances and high wear resistance are key, zinc die-casting is more suitable.
After high pressure die casting, your parts can be further machined to meet specific tolerances and functional and visual requirements. This may involve machining holes or fine-tuning surfaces.
With CNC machining after high pressure die casting, you get high-quality parts tailored to your requirements.
Do you have a project where low weight is a key factor for functionality or application? If so, please feel free to contact us and we will review all the requirements to ensure you get the best possible result from your high pressure die casting process. Our team is ready to help you!