Saw Blades

Saw Blades

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Diamond Saw Blades

Most diamond saw blades come in two parts:

  • A metal blade core
  • Numerous cutting segments attached to the perimeter of the core

A saw blade’s core doesn’t do any of the cutting, instead it holds the cutting segment — much like the center of a wooden saw blade holds the teeth.

The cutting segments cut the material using an abrasive grinding action. These segments have two ingredients:

  • Diamonds, in the form of sandpaper-sized grit
  • A metal bond

The bond is usually a metal powder which has the diamonds mixed into it. The bond powder and diamonds are usually sintered – that is, compressed without melting – into a cutting segment, then welded onto the core of a saw blade.

Sintering is a relatively low-tech and cheap way to produce cutting segments for diamond saw blades. This, in turn, has created a profusion of relatively low-cost diamond and other superabrasive blades for a variety of applications.

How Diamond Saw Blades Work

Diamond saw blades don’t cut through materials in the same manner as wood-cutting blades. Instead, the exposed diamond grit on the surfaces of the cutting segments uses an abrasive action to cut through the material, similar to a grinder smoothing a surface (which is why they’re called “superabrasive” blades). You can even see metal-cutting blades melt their way through metal if you’re sharp-eyed.

Because of these exposed diamonds, diamond saw blades are able to cut hard materials. They’re also why you have concrete blades, masonry blades, and asphalt blades in your toolkit. However, these exposed diamonds are also the Achilles heels of superabrasive blades.

Learn More About Diamond Saw Blades

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