Diamond cutting blades, as the protagonist of metallographic cutting blades, can cut almost any material during the metallographic precision cutting process. When selecting metallographic engineers, they cannot do without pore size, outer diameter, thickness, and hardness indicators. However, for experts, these are not enough, and there is also an easily overlooked indicator, which is diamond concentration!

There are both low concentration diamond cutting blades and high concentration diamond cutting blades, which have significant differences in performance and application. We can take you to learn about pulse detection together.

Let's take a look at&quo; first; Diamond concentration; The concept of diamond cutting blades, for which the proportion and distribution of diamond particles in the blade material is determined by their concentration. Specifically, diamond concentration refers to the content of diamond in the cutting edge of a diamond cutting blade. Usually defined as: concentration 100=layer volume 4.4 carats per centimeter (particles+matrix).


For example, if the diamond density is 3.52 g/cm3 and 1 carat=0.2g, the concentration is 100, and the diamond ratio is 25% of the volume of the diamond layer. As a diamond cutting blade used for metallographic cutting, its standard diamond concentration range is 0.5 carat/cm3 to 6 carat/cm3, which is the range of diamond concentration from 8 to 135.

The concentration of diamond has a significant impact on the cutting performance and price of diamond cutting blades. Different concentrations of diamond cutting blades are suitable for cutting different materials. Only by selecting the appropriate concentration of diamond cutting blades can better cutting ability be achieved, which is also more economical and effective for sample preparation.


Generally, the selection is based on factors such as the physical properties, hardness, cutting speed, sample size, and coolant used of the material being cut.


In addition, the diamond concentration of diamond cutting blades also has a certain impact on their lifespan and cutting speed. If it is used to cut softer wear-resistant materials such as polymers, rubber, and plastics, it is recommended to use diamond cutting blades with higher concentrations. It is worth noting that while using it, it is necessary to reduce its cutting speed in order to achieve the desired cutting effect.


For cutting hard and brittle materials such as ceramics and glass, it is recommended to use cutting blades with lower diamond concentrations, which is both economical and efficient.

After understanding the above, I believe you already know how to choose diamond metallographic cutting sheets. Whether you are engaged in production, research and development, or teaching, choose low concentration diamond cutting sheets to cut ceramics, glass, silicon, carbides, sapphires, and other related semiconductor and optical materials; Choose high concentration diamond cutting blades to cut metals such as stainless steel, aluminum, titanium, and PCB circuit boards. They are all very good choices.


Diamond metallographic cutting blades used to have so much attention to detail that understanding them can enhance the quality and efficiency of work. The above is a sharing of experience from pulse testing engineers. I hope it can bring you some help. Friends are welcome to explore more sample preparation solutions with us.