Diamond Blades exist in hundreds and thousands of varieties because of their different types of materials, different types of bonds, and even different manufacturing methods. Mostly, for slicing, cutting, slabbing, cross-sectioning and rough cutting applications. Where there are so many varieties, it is also important to learn about the slight differences that exist between the types of diamond blades and their applications; because this determines their performance.
Each diamond blade is designed specifically for a different application, and this is why they may react and perform differently under different conditions. For people who try to make one work for other materials as well, it may not perform well at all. In simple words, every blade is made for cutting a particular type of diamond- isn’t that amazing?
A diamond blade works as a cutting tool that works with captured diamond particles in a metal matrix. This consists of a small cutting edge. The diamond blades are usually made up of steel core and embedded with diamonds. During the diamond cutting operation, the surface speed can reach up to30 m/sec; in case you are using a high-speed diamond cutting saw.
How are diamond blades made?
Before choosing the right diamond blade for your application, it’s helpful to know how they are made and how they work. Diamond blades are mainly made up of two components: a steel core and a segment.
- Steel Core
The core is based on a round flat metal disc that is used to support the outer segments. The diamond is attached to the core with the help of vacuum brazing, laser welding etc.
The segment of a diamond blade is composed of two components- the diamond bond and the metal bond. The diamond used is manufactured or synthetically produced unlike natural. This takes place when a mixture of metal powders used is used in various combinations to get specific wear rates. Metals with low abrasion resistance such as bronze come under the soft bond category whereas the hard bonds are mostly made up of hard metals like Tungsten Carbide.
How do diamond blades work?
There is a common concept that diamond blades are usually used for cutting, but more than that, they are used for grinding. The exposed crystals of diamonds grind brilliantly; and the metal matrix encloses the diamond in its place. Each diamond consists of a bond tail that supports the diamond. The diamond blade works while rotating through the material. The exposed surface of the diamonds grinds the material being cut into a fine powder.
After hundreds and thousands of passes through the material being cut, the exposed diamonds start to crack and fracture. This wearing and tearing leads to controlled erosion of metal bond containing the diamond to expose new sharp points. Once the cutting section is consumed the blade will no longer grind letting the operator know it is time for a new blade. Usually, expensive diamonds are refined and cut by several of the exact suitable blades to get ideal result.