Solving Common Diamond Blade Problems

 

Cutting incorrectly or choosing the wrong diamond blade can not only have an effect on the life and effectiveness of your blade, but it can also lead to a potentially dangerous problem with your blade. Have you experienced a loss of tension, segment loss, cracked segments, overheated blade, excessive wear on segments, glazed over segments, cracked core or undercutting on a diamond blade? The following will explain the most effective way to prevent these diamond blade problems.

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Loss of Tension

Segment Loss

Cracked Segments

Overheated Blade

Excessive Wear on Segments

Glazed Over Segments

Cracked Core

Undercutting

 


 

Loss of Tension

Diamond Blade out of tension

When a diamond blade is said to have a loss of tension or "out of tension" this means that the bend or curve of the blade is not correct. This causes the blade to wobble from side to side while out of the cut. A diamond blade with a loss of tension cannot be re-tensioned. 

Cause: You are running the diamond blade at the wrong RPM.

Prevention: Check your saw's RPM to make sure it aligns with your diamond blade's maximum RPM.

Cause: The diamond blade has been dropped or thrown.

Prevention: Handle your diamond blade with care, put the blade back in its box or hang the diamond blade on a hook.

Cause: The diamond blade is incorrectly aligned in the saw.

Prevention: Check for blade wobbling prior to making any cuts.

 

NEVER CONTINUE TO USE A BLADE IF IT LOST ITS TENSION!

 

 

 


 

 

Segment Loss

Lost Segment on a diamond blade

A diamond blade has laser-welded segments attached to the blade core. When the weld is weakened, the segment has a chance to break off leading to segment loss.

Cause: You are using the wrong blade for the material you are cutting.

Prevention: Use the correct bond hardness on a blade for the material you are cutting.

Cause: The blade is getting too hot and doesn't have a chance to cool down.

Prevention: Use more water during your cut to cool down your diamond blade.

 

NEVER CONTINUE TO USE A BLADE IF IT HAS SEGMENT LOSS!

 

 

 

 


 

Cracked Segments

Cracked Segment on a diamond blade

A cracked segment is a hairline chip in the segment. Continuing to cut with a segment that is cracked can lead to a lost segment. 

Cause: You are putting too much pressure on the diamond blade.

Prevention: Let the diamond blade cut at its own pace. Don't push down on the blade when you are cutting.

Cause: You are using the wrong blade for the material you are cutting.

Prevention: Use the correct bond hardness on the blade for the material you are cutting.

 

NEVER CONTINUE TO USE A BLADE IF IT HAS CRACKED SEGMENTS!

 

 

 


 


 

Overheated Blade

Overheating diamond blade

An overheated blade can be identified by a blue-ish color on the diamond blade's core and segments. An overheated blade is a common cause of lost segments and a cracked core.

Cause: You aren't using enough water to cool the diamond blade down.

Prevention: Use the right amount of water when cutting. You want a slurry with a chocolate milk consistency. 

Cause: You are putting too much pressure on the diamond blade.

Prevention: Let the diamond blade cut at its own pace. Don't push down on the blade when you are cutting.

 

 

 

 

 


 

 

Excessive Wear on Segments

If your diamond blade isn't getting the longevity that you expect, the segments could be wearing away too quickly. You may also notice that segment wear is uneven.

Cause: If your segments are wearing away too quickly. You are using the wrong blade for the material you are cutting.

Prevention: Use the correct bond hardness on a blade for the material you are cutting.

Cause: You aren't using enough water to cool the diamond blade down.

Prevention: Use the right amount of water when cutting. You want a slurry with a chocolate milk consistency. 

 

 

 

 


 

Glazed over Segments

When a diamond blade's segments "glaze over" they are unable to continue to cut. The segments no longer have any exposed diamonds and the segments feel smooth to the touch. You are able to re-expose diamond or "redress"  a blade that has glazed over segments.

Cause: If your segments are wearing away too quickly. You are using the wrong blade for the material you are cutting.

Prevention: Use the correct bond hardness on a blade for the material you are cutting.

Cause: You are running the diamond blade at the wrong RPM.

Prevention: Check your saw's RPM to make sure it aligns with your diamond blade's maximum RPM.

Cause: You are using too much water when you are cutting.

Prevention: Use an adequate amount of coolant for the blade. The slurry should be a chocolate milk consistency.

Cause: The diamond blade is spinning in the wrong direction.

Prevention: Make sure the arrow on the blade faces in the direction of the cut. Otherwise, follow the direction of the diamonds or "comet tail" to see which way the blade goes.

 

 

 


 


 

Cracked Core

Cracked core on a diamond blade

A cracked core is a dangerous fault for a diamond blade. A cracked core will begin in the gullet. Pieces of the core can begin to fly off the blade at extremely high speeds if you continue to use a blade with a cracked core. 

Cause: You are bogging down the blade, forcing the blade into a tight cut.

Prevention: Let the diamond blade cut at its own pace. Don't push down on the blade when you are cutting.

Cause: You aren't using enough water to cool the diamond blade down.

Prevention: Use the right amount of water when cutting. You want a slurry with a chocolate milk consistency. 

 

NEVER CONTINUE TO USE A BLADE IF IT HAS A CRACKED CORE

 

 

 

 


 

Undercutting

Undercutting Diamond Blade

Undercutting is similar to excessive segment wear. Undercutting is when the core of the blade is wearing away faster than the segment. 

Cause: You are cutting a very abrasive material and the slurry is wearing away the diamond blade's core instead of the segments.

Prevention: Use the right amount of water when cutting. You want a slurry with a chocolate milk consistency. 

Cause: You are cutting too deep with the diamond blade and the core is coming in contact with the material you are cutting.

Prevention: Try Step Cutting! This takes the pressure off the blade and allows for a safer and easier cut.

 

NEVER USE A BLADE IF IT IS UNDERCUT!

 


 

 

 

 

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