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TiAlN coating is a prevalent option for use with carbide end mills today and for a good reason. At a basic level, the mix of titanium and nitride resists the formation of built-up edges (BUEs). BUEs occur when materials gradually stick to the cutting edge of the tool and peel away the coating layer over time, causing the rake face of the cutting tool to separate from the chip.

Extend end mill life and increase your profit margin all at one time by resharpening your tools instead of replacing them with new ones every time.

We hope this brief overview has helped help you understand the different tool coating options that are available and why we choose to offer the TiAlN and AlCrN options for end mill coatings.

Which end mill flute count is right for your machining job? 2 flutes? 7 flutes? Read this post to know how to choose the correct end mill for the job.

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For high-performance cutting tools, arguably, the two best PVD coatings available on the market today are Titanium Aluminum Nitride (TiAlN) and Aluminum Chromium Nitrite (AlCrN). These two, in particular, outperform others in a majority of uses and provide the benefits that operators of cutting tools will be looking for in their industrial applications.

When choosing an end mill for machining the choice often starts with high speed steel vs carbide end mills. Use this article to pick which is best for you.

You might notice TiAlN bears the same chemical components as AlTiN. Despite this similarity, AlTiN comprises more aluminum and, therefore, much harder coating material, which can result in increased chipping when used to cut equally hard materials. TiAlN, alternatively, is softer and can be used more effectively in higher temperature dry milling environments.

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End mill keeps breaking? Rough surface finish? These are only a few issues today's machinists face. But don't worry there may be a solution to your problem.

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Since the development of the original Titanium Nitride (TiN) coating, the use of coatings for industrial cutting applications such as carbide end mills has become widespread. Hundreds of different coatings have been developed over the last decades, along with the corresponding rise in popularity, yielding a dizzying array of options currently available in the market. As a result, it’s no small feat to understand and wade through the differences and eventually settle on the end mill coating that is truly best suited for your situation.

The inclusion of chromium ensures that the coating will perform even better under high-speed and high-temperature milling environments. While AlCrN is viewed as an improvement over TiAlN for that reason, it is also a more flexible coating overall and can be used in a variety of settings.

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TiAlN coating is widely used in applications where excessive heat is generated. The added aluminum serves as a thermal insulator, providing stability and heat resistance at extremely high temperatures. This layer of aluminum on the tool surface not only prevents further oxidation but provides a hardness that resists chipping that may otherwise occur on other coatings.

AlCrN coating further improves upon TiAlN coating by ditching titanium and instead substituting chromium in its place. Since aluminum adheres to chromium, more aluminum can be added, thereby improving the hardness and oxidation resistance of the cutting tool.

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