What is gravity die casting?

New to die casting? Or previously only ever used one particular type of casting and wondering if gravity die casting, could be a better option? Allow us to help. Lupton and Place have been leading the way with all forms of die casting for well over a century. We don’t …

Read moreWhat is gravity die casting?

New to die casting? Or previously only ever used one particular type of casting and wondering if gravity die casting, could be a better option?

Allow us to help.

Lupton and Place have been leading the way with all forms of die casting for well over a century. We don’t like to show off, but what we don’t know about the different methods we’re pretty sure isn’t worth knowing! Here we take a closer look at gravity die casting, including what it is, what it’s used for, and the pros and cons of opting for this process. Read on to find out more.

 

What is gravity die casting?

The clue for how gravity die casting differs from other methods is in its title – gravity!

As with all die casting, molten metal is formed into a shape using a mould cavity, but it is gravity, and gravity alone, that forces the molten metal to fill the mould. The result is a part that is typically slightly heavier and larger, but that can meet higher structural requirements.

 

What can gravity die casting be used for?

The list of possible items produced using gravity die casting is extensive. Just some examples include:

  • Medical equipment – surgical instruments and all manner of hospital equipment.
  • Car parts – engine components, gearbox cases, cylinder parts and structural elements.
  • Electronics – hi-fi equipment, consumer electronics, tools.
  • Lighting – from housing units and control panels through to the fixtures and the lighting components themselves.
  • Military equipment – weaponry and surveillance gear.

 

The pros and cons of gravity die casting

Gravity die castings are a popular choice due to the excellent surface finish that can be achieved and the resulting strength. Let’s take a look at some of the other key advantages of using this process:

Pros:

  • Choice – wide choice of alloys that can be used with gravity die casting
  • Accuracy – exceptional accuracy thanks to tight tolerances. Proper tooling also results in consistent quality with excellent repeatability.
  • Fast turnaround – with fewer steps in the production process and simpler equipment needed, gravity die casting invariably has quicker production timescales.
  • Detailing – parts can be made with internal inserts and pins.
  • Cost-effective – if used for medium to high production product runs.

Cons:

  • Thicker – walls are typically thicker with a minimum depth of around 3mm.
  • Productions rates – with certain alloys, gravity die casting can have lower production rates compared to pressure die casting.
  • More costly for low volume rates – the initial cost of the die means that low production rates can work out more costly.

 

Let the experts help

Die casting is an excellent way of mass-producing detailed and identical parts. But, as with all things, there’s a ‘right tool’ for the job and it’s important to pick the most appropriate method for your project. So why not let the experts help?

Our knowledgeable and experienced team is always on hand to discuss your requirements and can help you to identify the right process for your needs. Make contact with us today by calling 01282 422361 or fill in our contact form and we’ll be back in touch soon.