Brian’s Industrial Supply Blog

Posted on: 24 January 2024

Aluminium is a popular metal used in many industries because it is lightweight, durable, and resistant to corrosion. However, cutting aluminium can be a challenge due to its unique properties. Whether you are a DIY enthusiast or a professional metalworker, proper cutting techniques are crucial to ensure a precise and clean cut.

In this blog post, we will share with you some tips and tricks on how to cut aluminium.

Choose the Right Cutting Blade

When it comes to cutting aluminium, using the right cutting tool and blade is essential. A blade that is too thick can cause too much friction and heat, resulting in warping or even melting the material. On the other hand, a blade that is too thin can easily bend or break under the pressure of cutting. For a clean cut, choose a blade that is specifically designed for cutting aluminium and is of proper thickness. High-speed steel is a popular choice for cutting aluminium because it is strong, durable, and can withstand high speeds.

Use Lubrication

Cutting aluminium generates a lot of heat, which can lead to warping and burrs on the edges of the material. Lubrication is crucial in keeping the material cool and minimizing heat build-up. Some popular lubrication options are oil, kerosene, or cutting fluid. Apply the lubricant directly to the blade or the material before cutting. Lubrication can also help improve the blade's lifespan and minimize wear and tear.

Secure the Material

Before you start cutting, it is essential to secure the material properly. Aluminium can be slippery, and working with an unsecured material can lead to uneven cuts. Use a clamp or vice to hold down the material firmly, ensuring that it stays in place while you work. If the material is too thin to clamp, use double-sided tape to hold it in place.

Choose the Right Cutting Method

There are several methods for cutting aluminium, such as sawing, shearing, or using a CNC machine. The best method for you will depend on the material's thickness, the required precision of the cut, and the tools available. Sawing is ideal for thicker sheets of aluminium while shearing is better suited for thinner material. CNC machines are highly precise and can produce complex cuts, but they can be expensive and require specialised training.

Wear Protective Gear

Lastly, when working with any metal, safety should be the top priority. Aluminium can produce sharp edges and chips that can fly off during cutting, potentially causing injury. Wear protective gear, such as gloves, safety glasses, and a mask, to protect yourself from flying debris and metal dust.

Reach out to an aluminium-cutting service to learn more.