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Diamond Saw Blade

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Suzhou Yihong Metal Products Co., Ltd. is located in Zhangjiagang Free Trade Zone, Suzhou City, Jiangsu Prov- ince, which is located on the coast of Jiangnan and Taihu Lake, and is close to Yanjiang and Shanghai-Nanjing. Sitong. There is a deep-water wharf of the Yangtze River in the area, and the traffic is very convenient. Enterprise land occupation , with excellent R&D team and many employees. Yihong is committed to the design, development, production and sales of hard tools, and spray processing. The main products include diamond tools, brazed diamond tools, Alloy tools, resin bonded grinding wheels, etc. Specific prod- ucts include diamond saw blades, cutting blades, perforators, grinding wheels, grinding heads, cemented carbide rotary files, Non-standard special-shaped tools such as alloy file, alloy hole opener and alloy grinding wheel.

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What is Diamond Saw Blade?

A diamond blade is a saw blade which has diamonds fixed on its edge for cutting hard or abrasive materials. There are many types of diamond blade, and they have many uses, including cutting stone, concrete, asphalt, bricks, coal balls, glass, and ceramics in the construction industry; cutting semiconductor materials in the semiconductor industry; and cutting gemstones, including diamonds, in the gem industry.

Benefits of Diamond Saw Blade

Speed

Whether it’s concrete cutting or splitting stone, speed is important in any construction project. The faster you finish the cutting, the better your chances of staying on schedule and within budget. With this in mind, the diamond saw blade is your best bet to finish your project faster. Diamond saw blades are known for their efficiency in creating precise cuts at a fast pace.

However, now all diamond saw blades are created equal. There are various designs and models of diamond saw blades available. Some models, like the turbo blade, for instance, are faster at cutting when compared to others. The turbo blade has a continuous outer rim and a serrated edge. This allows the diamond blade to sustain high speeds and create precise cuts.

You can expect nothing less than high-quality performance and speed from a turbo-diamond blade. Shopturbo diamond saw blades and more at Diamach – the top destination for stonemasonry tools in Sydney.

Durability

Diamond saw blades are widely celebrated for their durability. Compared to other blades, they have exceptional longevity because of their unique design, which includes a circular steel disk with segments on the outer edge. These segments consist of a combination of diamonds and metal bond powder that are fused together through high heat and pressure. This contributes to the longevity and durability of the diamond saw blade.

Because diamonds are naturally the strongest substance on earth, they can last for years without losing their performance. This makes diamond blades a cost-effective concrete cutting tool.

Precision

Diamond saw blades provide incredibly precise cuts with less vibration and strain on the concrete structure. This is due to the diamond’s high performance and its ability to evenly distribute the diamonds across the blade. What’s more, diamond saw blades are optimal for cutting through even harder materials such as rebar and stainless steel. The low vibration generated by diamond saw blades also helps to reduce noise pollution when working in an urban setting.

Unlike alternative options diamond saw blades are designed to be long-lasting, allowing for consistent use and fewer blade replacements. With a diamond saw blade, you can be sure that the cut will remain precise and clean for years to come.

Comfort

Not only are diamond saw blades an ideal choice for any concrete cutting job, they’re also designed with comfort in mind They offer ease of use and an efficient way to get the job done quickly and without creating too much mess. The diamond blade is designed to cut through concrete with minimal chipping and breakages, while also producing significantly less noise than other types of concrete cutting blades.

Additionally, diamond saw blades can remove the excess slurry that is produced during the cutting process, reducing dust generation. This makes using diamond saw blades a comfortable choice for any job.

Price point

The price point of diamond saw blades is one of the most attractive benefits to consider when making a purchase. Although Diamond saw blades are more expensive than traditional saw blades, they offer superior performance and durability. This makes them an ideal choice for those who are looking for a long-term solution to their cutting needs.

The cost of diamond saw blades is often offset by the fact that they last longer than traditional saw blades and require fewer replacements over time. The ability to save money on replacement costs can be especially helpful for those who use saw blades frequently or have large projects that need to be completed with precision.

Types of Diamond Saw Blade

Segmented rim

The segmented rim is also known as the dry cutting blade because it works with many dry applications. This blade also offers the roughest cut of the three options, making it ideal for concrete, brick and limestone.

Turbo rim

This is the go-to blade for the fastest cuts in wet or dry applications. Designed with serrated edges, this blade is meant to make fast and smooth cuts in materials such as tile and natural stone.

Continuous rim

The continuous rim requires water during cutting. This blade also offers the slowest and smoothest cut, making it perfect for marble, granite and porcelain.

Components of Diamond Saw Blade

Diamonds

The predominant constituent of a diamond saw blade is, naturally, the diamonds themselves. Diamonds serve as the active cutting agents, necessitating the selection of blades featuring high-quality, industrial-grade diamonds. Typically, diamonds are embedded within the segments or ridges of the blade, or form a continuous rim encircling the blade's circumference.

Segments or ridges

Segments or ridges are the raised portions of the blade containing the embedded diamonds. These components are engineered to deliver aggressive cutting action while securing the diamonds in place during cutting. The number, size, and arrangement of segments or ridges vary according to blade type and the materials targeted for cutting.

Metal core

The metal core serves as the backbone of the blade, furnishing stability and support for the diamonds. Usually crafted from high-quality steel or another metal engineered to withstand cutting stresses, the thickness and strength of the metal core vary based on blade type and the materials designated for cutting.

Continuous rim

A feature found in certain types of diamond blades, such as continuous rim blades, is the continuous rim itself. Housing a continuous row of diamonds, this design ensures a smooth and precise cut. The size and arrangement of diamonds within the continuous rim are contingent upon blade type and the materials slated for cutting.

Process of Diamond Saw Blade

Steel core (the support part)

The steel core is typically a flat metal disc that’s purpose is to support the outer segments. The steel core is usually attached to the segment, the cutting part where the diamond is located, using one of the following methods.

The type of blade being produced will influence the choice of method.

Vacuum brazed or sintered attachment
This process is often used for lower cost and higher quantity diamond saw blades. It is better suited to create diamond blades intended to use dry cutting softer materials and low horsepower equipment. This is because the method is best for creating smaller, sharper blades.

Laser welded attachment
Laser welding creates a stronger attachment to the blade core, making it ideal for diamond blades used for wet cutting harder materials to a higher depth and higher horsepower equipment. Steel blade cores used with this method are thicker, precision ground, heat-treated and tensioned. This means they are less susceptible to bending and flexing stress from the heavier machinery and usage.

Segment (the cutting part)

The segment, the cutting part of the blade, is made up of two parts. The first is the diamond crystals, and the second is the bonding system that holds them in place and creates the correct wear rate for the intended use.

Diamond crystals
In diamond saw blades, synthetic or manufactured diamonds are preferred to natural. This is because there is more control over the size, shape and strength of synthetic diamonds, meaning they provide better control during the manufacturing process. This control means a more accurate prediction of the cutting speed and precision of the resulting diamond blade. It also helps consistent recreation of these qualities.

Amount of diamond
The intended use of the blade will dictate the quantity of diamond used. The more diamond used in a blade, the higher the amount of horsepower needed for the blade to effectively cut. For example, a blade intended for use cutting materials like concrete will feature more diamonds than one intended for use cutting ceramics. Since the harder materials often require more tools with more horsepower, more diamonds are necessary for an effective diamond blade.

Quality of diamond
The quality of the diamond used in diamond blades will determine the diamonds ability to resist heat and maintain sharpness. Superior diamonds will have better longevity, maintaining sharpness at a higher temperature.

Size of diamond
Diamond sizes are specified in mesh ranges, such as 25-35 or 50-60. A higher number in mesh size indicates a finer individual diamond particle. Whilst coarser diamond particles will be better for cutting asphalt and red brick, finer diamond particles will serve well for cutting very hard materials like quartz.

Bonding systems
The bond that holds the diamond particles in place within the blade is created from a mixture of metal powders. Different metal powders are combined in particular ratios to achieve specific wear rates. The right wear rate will ensure that the diamond particles are held in place for just long enough to achieve maximum wear. They will then release them to expose the next layer of diamond particles beneath. Soft bonds, that wear quickly, would be made up of soft metal powders such as bronze. These are best for cutting materials like ceramics and porcelain, which are very hard but less abrasive. Hard bonds, that wear slowly, would be made up of hard metals like tungsten carbide. These are best for cutting materials like asphalt, which are generally soft but very abrasive. Remember that opposites attract; for hard but less abrasive materials, a softer bond is best. Vice versa, for materials that are soft but more abrasive, a harder bond is best.

How to Maintain Diamond Saw Blade

Cleaning diamond blades
It’s best to clean your diamond blades between uses. There are several ways to clean your diamond and other saw blades. For removing surface dust and debris, you can simply use a can of compressed air to loosen and remove stubborn particles from the blade. For handling slurry and other hard-to-remove stains, consider creating a mixture of cleaning agent with soap and water. You can soak the blade for a few minutes, scrubbing the stains with a synthetic or metal bristle brush. Finally, rinse your blade with clean water and dry it completely. Whenever you use water on a metal saw blade, you need to make sure to dry the blade thoroughly and quickly before rust can form. Once you’ve thoroughly washed and dried your blade, you can store it before its next use.

Proper diamond blade storage
Like cleaning instructions, storage requirements may also range from manufacturer to manufacturer. However, be sure to handle and transport your diamond blades with care. Just because the blades aren’t attached to a saw doesn’t mean they can’t still do damage. The general guidelines for storing traditional diamond blades include a dry environment with a stable temperature. Too much moisture or fluctuating levels can cause humidity and condensation, which will rust your diamond blades. Temperature variations can cause hairline cracks and other damage. The best place to store these blades is inside a temperature-controlled moisture-proof toolbox. Make sure that the blades have a snug fit, so they don’t rattle around inside your storage.

Diamond blade repairs
Part of diamond blade maintenance is scheduling your blades for regular repairs. If you notice damage to one of your blades, safely store it away and schedule repairs with a professional. The thought of putting one of their tools out of commission for repairs might elicit frustration in some contractors. However, a temporary decrease in productivity is better than damaging these tools further or causing an accident on the job site. Never continue to use a diamond blade or any other workshop tool if it shows signs of damage. For example, in the case of diamond blades, the diamond-encrusted segments can occasionally chip or break off entirely. While one missing segment might not look like much, it can ruin your working material, resulting in a scrapped project.

Common troubleshooting and fixes
A lack of proper care and maintenance can lead to issues with your diamond blades. Improper use could also be to blame for common troubleshooting errors that you experience on the job. One of the most common troubleshooting issues with diamond blades is segment loss and chipping. If you notice your diamond blades are losing segment after segment, you may need to switch to a softer bond. The rule of thumb is to use a softer bond or harder materials and vice versa. This incorrect choice of blade could also be the reason your diamond blades aren’t grinding or cutting materials properly. Additionally, always remember to replace worn parts and missing segments.

How the Diamond Blade Works

Diamond blades do not really cut, instead they grind material through an action of friction with the synthetic diamond-bonding matrix. The diamond crystals, often visible at the leading edge and sides of the rim / segment, remove material by scratching out particles of hard, dense materials, or by knocking out larger particles of loosely bonded abrasive material. This process eventually cracks or fractures the diamond particle, breaking it down into smaller pieces. As a result of this phenomenon, a diamond blade for cutting soft, abrasive material must have a hard metal matrix composition to resist this erosion long enough for the exposed diamonds to be properly utilized. Conversely, a blade for cutting a hard, non-abrasive material must have a soft bond to ensure that it will erode and expose the diamonds embedded in the matrix. These simple principles are the foundation of “controlled bond erosion.”

Maximize Diamond Blade Cutting Efficiency

Factors involving concrete
When cutting concrete, several factors influence your choice of diamond blades. These include compressive strength, hardness of the aggregate, size of the aggregate, type of sand, steel reinforcing and green or cured concrete.

Compressive strength
Concrete slabs may vary greatly in compressive strength, measured in pounds per square inch (PSI). Most concrete roads are 4-6,000 PSI, while typical patios or sidewalks are about 3,000 PSI.

Hardness of aggregate
There are many different types of rock used as aggregate. Hardness often varies even within the same classification of rock. For example, granite varies in hardness and friability.

The Mohs scale is frequently used to measure hardness. Values of hardness are assigned from one to ten. A substance with a higher Mohs number scratches a substance with a lower number - higher Mohs scale numbers indicate harder materials. Most aggregates fall into the 2 to 9 range on the Mohs scale.

Aggregate hardness is one important factor when cutting concrete. Because hard aggregate dulls diamond grit more quickly, segment bonds generally need to be softer when cutting hard aggregate. This allows the segment to wear normally and bring new, sharp diamond grit to the surface. Softer aggregate will not dull diamond grit as quickly, so harder segment bonds are needed to hold the diamonds in place long enough to use their full potential.

Size of the aggregate
The size of the aggregate affects diamond blade performance. Large aggregates tend to make a blade cut slower. Smaller aggregates tend to make a blade cut faster.

Type of sand
Sand is part of the aggregate mix, and determines the abrasiveness of concrete. "Small aggregate" is usually sand. Sand can either be sharp (abrasive) or round (non-abrasive). To determine the sharpness of sand, you need to know where the sand is from. Crushed sand and bank sand are usually sharp; river sand is usually round.

Green concrete is more abrasive than cured concrete. When the concrete is not fully cured sand can more easily be scraped off the surface being cut. More loose sand means more abrasiveness.

Amount of steel reinforcing (rebar)
Heavy steel reinforcing tends to make a blade cut slower, while less reinforcing tends to make a blade cut faster. "Light" to "heavy" rebar is a very subjective term.

Green or cured concrete
The drying or curing time of concrete greatly affects how the material will interact with a diamond blade. Green concrete is freshly poured and has set up, but is not yet fully cured. It is softer and more abrasive than cured concrete. You need a harder bonded blade with undercut protectors to cut green concrete. You need a softer bonded blade to cut the same concrete in a cured state.

Typically, concrete defined as "green" is six hours from pour or younger, but this can vary widely. Weather, temperature, moisture in the aggregate, time of year and the amount of water in the mix all influence curing time. Also, additives in most new concrete can either shorten or extend curing time. Consult your mix design to find the relative curing time for your job. As soon as wet concrete sets up and does not spall or ravel, green cutting can begin.

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FAQ

Q: How do you clean a diamond saw blade?

A: Retracting the blade and placing it in an ultrasonic cleaner with distilled water and one scoop of enzymatic powder for 2 to 3 minutes, according to the manufacturer, will break apart protein buildup on the blade.

Q: What is the life expectancy of a diamond blade?

A: Diamond blades can last anywhere from 10 hours to over 100 hours of use, depending on how you use them. Each blade has a different quality, bond, specialty, and more.

Q: How do you keep a diamond blade sharp?

A: For this purpose, you will need a diamond blade sharpening stone. With this sharpening stone, you can extend your blade's life expectancy and cut materials such as stone, tile, concrete, etc.

Q: What makes a good diamond blade?

A: Diamond blades have different concentrations and quality of diamonds within the segments. A blade with a higher concentration and quality of diamonds will perform better and last longer. Another factor is the blade specs. Make sure that your blade's segments are designed for the aggregate you are cutting.

Q: Can you use a diamond blade dry?

A: Although you can use a dry cutting blade for a wet job, you cannot do the opposite. A wet diamond blade used for a dry job will overheat and possibly break apart, becoming a dangerous flying object.

Q: How do you clean a diamond cutting blade?

A: Cleaning Diamond Blades
For handling slurry and other hard-to-remove stains, consider creating a mixture of cleaning agent with soap and water. You can soak the blade for a few minutes, scrubbing the stains with a synthetic or metal bristle brush. Finally, rinse your blade with clean water and dry it completely.

Q: What does a worn out diamond blade look like?

A: If any segments are broken or cracked, then it's time to replace the blade as this physical damage can be very dangerous. The diamonds might also appear to be worn out, and you'll be able to see the core of the blade. When you can see the core, the diamonds have all been used and the blade won't cut.

Q: Do you need water with a diamond blade?

A: Using water will reduce the respirable dust concentration by at least 85%. Water also prevents the diamond blades from overheating when cutting concrete. Overheating can reduce the lifespan of the blade and make it inefficient after some time. Water lubricates the blade and improves its efficiency in the process.

Q: What is better carbide or diamond blade?

A: Superabrasive, diamond plated tools have a major edge over carbide—longevity and cut-rate set diamond tools apart from the rest. Initially, a diamond tool will cost more money, but this investment goes toward the extended life of the bit. Additionally, diamond tools have a closer cut tolerance than carbide does.

Q: How do I choose a diamond saw blade?

A: Diamond blades are rated to match the RPM of the saws and grinders. High speed handheld saws and high speed cut-off saws need blades that are rated at higher RPM. Electric wall chasers need different blades from petrol powered ones. Check both aspects of your machinery prior to choosing the product to suit.

Q: How to deglaze a diamond blade?

A: The cutting surface of the blade will feel smooth. This is known as glazing or polishing. Rectify by re dressing the blade by cutting an #80 grit dressing stone ( we sell them here ). As an alternative, use an abrasive material like limestone to remove some bond and expose diamonds so cutting can continue.

Q: Can you cut wood with a diamond saw blade?

A: Diamond blades aren't the best choice for cutting wood. As stated earlier, these saws are manufactured to handle the toughest materials, and wood isn't one of those. Wood, especially boards, have soft fibers which can easily be damaged when the cut is not done correctly.

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