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Milling Aluminum – The Basics

Milling Aluminum - The Basics

Milling Aluminum – The Basics

When it comes to milling aluminum, there are a few things you need to know. This blog post will cover the basics of milling aluminum, including the best tools and proper RPMs. By the end of this post, you’ll have a better understanding of how to mill aluminum like a pro!

Tools of the Trade

The first thing you need to know about milling aluminum is that different end mills are designed for different applications. For example, some end mills are designed for roughing, while others are designed for finishing. Choosing the right type of end mill will make a big difference in your results.

In general, carbide end mills are the best choice for milling aluminum. Carbide is extremely hard and resistant to heat, which makes it ideal for machining aluminum. However, carbide end mills can be expensive, so if you’re on a budget, cobalt end mills are a good alternative. Cobalt end mills are not as hard as carbide end mills, but they’re still quite effective at machining aluminum.

The next thing you need to know about milling aluminum is that there is no one-size-fits-all answer regarding RPMs. The speed at which you should run your end mill depends on several factors, including the type of end mill you’re using, the material you’re machining, and the desired finish.

In general, however, it’s safe to say that you should start with a lower RPM and work your way up until you find the sweet spot. For example, if you’re using a 1/8″ carbide end mill to machine 6061 aluminum, a good starting point would be 1000 RPM. If you’re using a larger end mill or machining a harder material, you may need to start even lower.


Milling aluminum is tricky, but following these tips will surely get great results. Be sure to use the right type of end mill for your application and experiment with different RPMs until you find the perfect speed for your project. With these tips in mind, you’ll be able to machine aluminum like a pro!


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