How to Choose the Best Diamond Blade

Choosing A Diamond Blade

A diamond blade is a saw blade designed to cut through dense, abrasive materials like concrete and asphalt. The process of cutting abrasive materials is much different than cutting through wood because the blade gets extremely hot due to friction. Not all are the same, but choosing the best for each job can be challenging. Let&#;s look at the cutting process, speed, and cutting methods to understand how to select the best diamond blade for your project.

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Cutting Processes

They&#;re called a blade, but diamond blades don&#;t cut; they grind. Cutting with a one differs slightly from cutting wood or another soft material with a regular saw. Diamond blades scratch out particles of hard, dense materials instead of cutting straight through them. This process eventually cracks the tiny diamond particles embedded in the blade and renders the blade practically useless.

Cutting Speeds

Speed plays a big part in the life expectancy of a diamond blade. A saw operator who cuts slowly will extend the blade&#;s life; a saw operator who cuts faster will go through blades more quickly. There is a direct correlation between cutting speed and the blade&#;s life. Each project is different, so each contractor has different needs for diamond blades. Contractors with significant projects often choose blades designed to cut faster, so they understand frequent blade replacement will be an issue. This is an issue they&#;re willing to pay for because of the project&#;s scope.

Cutting Methods

These tool accessories are generally used for two cutting methods, wet and dry. Cutting concrete and other abrasive materials is a messy business.

Dry Cutting: Concrete dust harms the saw operator&#;s lungs and drifts with the airflow, affecting other people. This is fine on a job site where everyone will wear masks, but that only applies to some job sites. Dry cutting also causes more friction to the blade. This requires more frequent stops for the blade to cool and more blade changes as they wear out relatively quickly.

For those who don&#;t know, wet cutting refers to the dust created from cutting. The friction on the blade is much less than with dry cutting. With less friction, the saw operator doesn&#;t have to stop quite as frequently to allow the blade to cool. Ultimately, they perform better when cutting wet.

When to Replace

Diamond blades take more damage than your average saw blade due to the type of materials they go through. You can generally look at a diamond blade and tell when it needs replacement. The diamond particles will be worn down and smooth. Here are a few more tell-tale signs to replace your old tool.

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• Less Effective: A worn blade will cut much slower than it did when it was new. The diamond particles in the blade are the parts that do the work, so when they start to wear down, the cut will be much slower.
• Smooth Blade: We just mentioned this one, but it&#;s worth saying again. You can see the diamond particles if you look at a new blade. A worn blade won&#;t have the exact definition between metal and diamond.
• Glazed Blade: This is generally a sign that the blade has been used to cut something softer and less abrasive than the intended target. You may be able to bring the diamond particles back to life by cutting through an abrasive material but don&#;t bet on it.
• Worn Teeth: Sometimes, the metal teeth wear down and must be replaced. The diamond particles may still be usable, but the blade needs to be replaced if the teeth aren&#;t good.

How to Choose the Best Diamond Blade

We&#;ve given you a good amount of information about how diamond blades work, the process by which they work, and the cutting methods used. Now it&#;s time for you to help you choose the best diamond blade for the job you&#;re doing. The performance of a diamond blade is measured in two ways &#; proficiency of the cut and total footage yielded by the blade. The more proficient the blade is with the cut material, the better. Likewise, the more footage the blade yields, the better. You need a blade that will power through the material you&#;re working with while lasting long enough to make it worth the cost.

The use of a diamond disc is now a widespread tool among construction professionals for cutting ceramics. Diamond blades are made of a steel core with a crown-like edge formed by a metal alloy with diamond particles, which is where they get their name. But do we really know how they work and how to use a diamond disc in an actual tile installation? We&#;ll explain it in this article.

Diamond or Diamond-Coated Blade: What It Is and What It&#;s For

First, we need to understand that these diamond blades are abrasive tools that &#;cut&#; by the friction of diamond particles. The diamond particles are embedded in a metal alloy called a binder.
The binder&#;s function is to hold the diamond particles until they wear out or break. As the binder wears down, it will allow the replacement of the worn diamond with new particles.
This binder function is crucial. If it&#;s not very resistant to abrasion, it will result in tools with very fast and high-quality cuts, but with a short lifespan.
On the other hand, if the blade is very resistant to abrasion, the worn diamond particles will not be replaced, and the tool will lose its cutting power.
It is then said that the blade has &#;closed,&#; has become smooth or &#;blunted,&#; and needs to be revived with a cleaning block to continue working.

Diamond Blade: How to Choose It

At RUBI, we have a wide variety of diamond blades. To choose the right one that fits our needs, we must consider the following factors:

1. What material are we going to cut?
   As mentioned earlier, each material has different hardness and difficulty. In this case, we will need a blade and binder that adapt to the material we are cutting, ensuring the diamond always remains on the surface of the binder for a clean cut.
   At RUBI, we make it easy, so we have different colored blades for different materials that can be cut.
2. What type of cut are we going to make?
   Cutting at an angle (mitering) is not the same as making a straight cut. At RUBI, we have special blades for mitering.
   This type of cut puts very high lateral pressure on the blade, and not just any blade will give us a good cut. We will need enough thickness to prevent the diamond blade from getting damaged.
3. Types of Diamond Disc Edge
   The edge of the diamond blade can have several finishes. The most common are continuous, segmented, or turbo blades:
   • Continuous blades: blades with a continuous diamond edge. They are generally used to achieve a finer finish in jobs that require more precision in cutting. Their cutting speed is slower.
   • Segmented blades: blades with a segmented diamond edge (separated by gaps) for cutting materials such as brick, stone, granite, etc. They offer the highest cutting speed but produce a rougher finish.
   • Turbo (laser) blades: blades with a notched diamond edge. They provide a faster cutting speed than continuous edge blades and a better finish than segmented edge blades. However, they offer a medium finish with medium speed.

1. Blade Diameter
   There are diamond blades of different diameters on the market. The blade&#;s diameter determines the depth of cut.
   It is essential to match the blade to the cutter we will use. For example, we should never use a 350mm blade in a machine that accepts blades up to 250mm.
2. Types of Cutting
   The cutting mechanics of diamond blades generate high temperatures, leading to two types of cuts depending on cooling methods:
   • Dry cutting: this type of diamond blade does not need lubrication or water cooling (although it can also be used with water). The tool works solely with the cooling produced by air. This type of cutting is generally done with grinders or angle grinders.
   • Wet cutting: this type of diamond blade is cooled with water to lubricate and maintain a stable temperature during cutting. Additionally, it helps clean the diamond blade and remove the dust generated during the process. This provides a more durable and much cleaner, professional cut. This type of cutting is usually done with electric cutters.

Diamond Disc: How to Use It

We must always follow the manufacturer&#;s recommendations regarding the material to be cut and ensure the blade is not damaged. However, remember to keep these recommendations in mind:

1. Check that the blade is not damaged.
2. Regularly inspect the blade to ensure there are no cracks, wear, or loss of flatness.
3. Ensure the fastening plates are the correct diameter, equal, free of play, and flat.
4. Ensure the blade is correctly mounted and securely fastened.
5. Verify that the bearings and shaft of the grinder or circular saw are in good condition. Refer to the machine manufacturer&#;s manual for proper maintenance.
6. Respect the maximum operating speed for each blade diameter, as indicated by the manufacturer.
7. Never use a wet cutting blade for dry cutting.
8. Do not force the blade during the cut; allow it to set its own working pace.
9. Never work while obstructing the cutting line or blade path.
10. Allow for proper cooling by letting the blade spin freely every few minutes. Do not make long or continuous cuts. The harder the material, the more frequently you should do this.
11. When making a wet cut, do not start cutting until the water flow is adequate.

In conclusion, always remember that safety at work is essential, and working with diamond blades is no exception.
Always wear appropriate safety gear: goggles, proper footwear, fitted clothing, hearing protection, and, when necessary, a mask. But undoubtedly, correct use of the blades is crucial to maintaining safety at all times.

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