How do I know if my saw blade needs replacing?

Look for worn-down, chipped, broken and missing teeth or chipped carbide tips that indicate it’s time to replace a circular saw blade. Check the wear line of carbide edges using a bright light and magnifying glass to determine if it’s beginning to dull.

How do you test a circular saw blade?

Checking the Blade is Parallel

Like the rudder of a ship, the saw will follow the direction the blade points. If the blade skews away from the edge, the saw will track out into the material. If the blade skews toward the edge, the blade will flex and bind, stopping all forward progress.

What type of faults can you find with the blade?

Common types of blade faults and blade failures in turbomachinery include blade rubbing, low and high cycle fatigue failures, creep, fouled blade, loose blade, and blade induced FOD.

Why is my saw blade burning the wood?

A dull blade will make it hard to cut quickly, and the slower the feed rate of the saw, the more friction against the wood and the greater the likelihood of scorch marks. Pushing the stock through the saw too slowly is a common cause of saw blade burn. Sometimes a blade that feels dull might only be dirty.

How long do Diablo blades last?

They can last between 12 and 120 hours of continuous use, depending on the quality of the blade and material they’re used to cut.

How do you know when your circular saw blade is dull?

Increased tearout and chipping when making cuts.

A dull blade instead tears and breaks them, causing tearout and chip out. If you are seeing tearout after every cut, then the blade is most likely worn down.

Why does my circular saw blade smoke?

Improperly Set Circular Saw Blade Can Cause Smoking

By flaring the teeth, you make sure they are the only thing contacting the material during the cut. If your blade set is disrupted for any reason, then your blade’s body could be contacting the wood during the cut, causing heat and smoke.

Why does my circular saw blade stop spinning?

The most common reason your circular saw blade stops spinning is because your workpiece is pinching the blade. This can also cause the blade to kickback. To prevent this from happening you need to support your workpiece properly to allow it to set securely through the entire cut.

What do you do with old saw blades?

The best thing to do would be to recycle them at a scrapyard near you. Donate them to a school that has wood shops, art departments, or theater programs. Make interesting pieces of jewelry such as earrings out of circular saw blades. You can use a jigsaw to cut and shape them the way you want.

How do you remove burn blade marks from wood?

“If burns do show up, you can remove them with a hand plane or a sharp scraper in addition to sandpaper on a sanding block.” Answer from Lee Grindinger: “Sure there is, a scraper or plane will make quick work of the burn marks.

How do you cut oak without burning it?

To cut oak without burning it, follow these guidelines:

  1. Use a clean, sharp blade. Dull or dirty blades are the most common cause of burning.
  2. Use an HSS or carbide tipped rip blade for cutting hardwoods like oak.
  3. Make sure the blade is properly aligned.
  4. Cut slowly with a loose but sturdy grip.

Feb 20, 2022