Carbide burr: the Milling cutter for metals

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Here, we will be looking at the best results of carbide burr for metals. Before we get started, there are some important tips you need to have in mind when engaging in the milling or machining process.

carbide burr

Things you need to know:

You need to know the hardness of the material that you are going to work on. This will help you in choosing the most appropriate cutting tools. For the harder materials, you need milling cutter with a higher HRC hardness.

Aluminum needs more feed per bite (Fz), therefore a smaller number of lips is highly recommended in order to have more space on the cutter to evacuate larger chips.

In milling cutters for very hard materials, where we are going to apply very small cutting widths, we can find up to 6-8 lips. This is because these hard materials also cut at a slower speed.

All these so subtle issues are things that we must take into account to know if our machine is compatible with a milling cutter.

If we buy Chinese tools with certain characteristics, it is a good idea to consult machining parameters on official websites of recognized brands with similar characteristics (material, hardness, diameter) to have machining parameters with which to start.

In general, all these machining parameters must be respected, and finally, the power and robustness of our tool will determine the limit of cutting width (wc) and depth.

Now, let’s get started!

Tungsten carbide burrs

Tungsten carbide burrs are a great invention, they cut with great impression. This is main advantage for machining technicians. Yes, the machine is subjected to much less cutting force, as they penetrate the material with an incredible ease.

For professional users, the advantages are obvious, the cutting speed and durability is much higher, saving time and money as well.

The surface they work on is very shiny and which makes the carbon burrs ideal for machining aluminum.

On the other hand, they have a much higher hardness than fast steel. We can recognize them by touch because when we take them, they are much denser and therefore heavy.

Let’s look at another type of carbon burrs for metal cutting.

Carbide Burrs with less cutting lips for hard materials 

This type of milling cutter is quite interesting for trochoidal machining. 

If we use them on hard steels, where the FZ feed must be quite small, we can make the machine run more by having more teeth. Always remember to make your calculations to know the RPM you need to make it rotate and to have enough penetration into the work material.

The steel shavings are not going to present the problem that are usually associated with aluminum, that is, of getting stuck between the edges. Hence, so we can add more edges and lose space between them without problem

Take away

Obviously, for the milling cutter to work well, it must be able to penetrate the material without causing any resultant damage to the machine. Before making your choice of a cutting tool, you need to check the hardness of the material you want to work on and determine if the chosen milling cutter is appropriate for the job. 

However, you need to note that the carbide burrs are designed to work on a wide variety of materials such as metalwork, wood, and more.


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