The process of casting involves materials being formed into a shape using a mould. Casting dates back further than you may think. Studies have shown that this method has been used for thousands of years.
But what materials are used in castings and what benefits do they have? We’re going to look at this now.
Aluminium is often used in foundries thanks to its versatility. Aluminium is one of the only materials that can undergo many metal casting processes. In addition to this, those partaking in the casting process often find that it’s easily adaptable. Thanks to this material’s great mechanical properties, high thermal conductivity, and corrosion resistance, it’s ideal for many types of casting.
You may find it hard to come across a foundry that does not cast copper. Thanks to copper’s great electrical conductivity, it tends to be used for a range of electrical components. However, copper can crack and be quite porous if it’s used on its own. This is why this material is often mixed with metals such as nickel, tine, silver, and zinc.
Gray Iron Casting
Gray iron tends to be one of the most used materials in the casting industry. This is thanks to the fact that it’s a very versatile and strong material. Gray iron has suited to quite a few different applications, specifically those that need dimensional stability, vibration control, and high strength-to-weight ratios.
Steel is a very tough material and is ideal for use when parts are likely to be subjected to heavy loads, shock, and a lot of wear. Additionally, steel is often used in wet environments as it’s very corrosion resistant. If this was not impressive enough, steel can also be used in applications that involve using very high temperatures. This material can be mixed with iron, nickel, or chromium to help improve its heat resistance or corrosion resistance.
Ductile Iron Casting
If you need to create a cast that is very strong, ductile iron may be what you need. It is similar to grey iron, but it is stronger, more resistant, and it weighs less. In addition to this, ductile iron is lower in price and is very strong.
What to Consider When Choosing Materials
If you want to make a casting, you need to ensure that you use the right materials. You should consider the materials:
- Cooling speed
- Damping capabilities
- Melting temperature
- Required volume
If you want to undertake a die-cast project to create a resilient product that is used for performance, aluminium could be ideal. If you want to create a product that’s durable and strong, grey iron may be what you need.
There are many different materials that are used in castings. If you want to create a die-cast project, please make sure that you research your materials. Failure to use the right materials could result in a cast that isn’t as strong as you need it to be.