Diamond metallographic cutting blades are particularly commonly used in metallographic cutting consumables, and precision cutting cannot be separated from diamond cutting blades. Precise metallographic cutting of any material is almost applicable. However, in addition to parameters such as aperture, outer diameter, thickness, and hardness, there is also a parameter rarely mentioned in diamond metallographic cutting blades, which is commonly referred to in our laboratory as "; Secrets that cannot be seen with the naked eye;, Can you guess? Yes, it refers to diamond concentration!

The diamond concentration of diamond cutting blades can be high or low, and there are differences in performance and application between high concentration diamond cutting blades and low concentration diamond cutting blades. Pulse detection editor will be nagging everyone.

Diamond concentration: refers to the proportion and distribution of diamond particles per unit volume in the blade material of a diamond cutting blade. Specifically, it refers to the content of diamond in the blade of a diamond cutting blade, defined as: concentration 100=layer volume 4.4 carats per centimeter (particles+matrix). The standard diamond concentration range for diamond metallographic cutting pieces is between 8 and 135.

Metallographic cutting discs with different diamond concentrations are suitable for cutting different materials, and their prices also vary. Choosing the appropriate concentration of diamond cutting blades is beneficial for better cutting ability and more economical sample preparation.


Selection of diamond cutting discs with different concentrations: Typically, metallographic engineers choose based on factors such as the physical properties, hardness, cutting speed, sample size, and cutting coolant used of the material being cut. Usually, this is the way to choose:


For softer wear-resistant materials such as polymers, rubber, and plastics, choose diamond cutting blades with higher concentrations. It is worth noting that due to the influence of diamond concentration on cutting speed, it is necessary to reduce the cutting speed appropriately when cutting these materials in order to achieve the ideal cutting effect and ensure the service life of the cutting blade.


2. For hard and brittle materials such as ceramics and glass, choose diamond cutting discs with lower concentrations, which are both economical and can improve cutting efficiency.

With this understanding, the secrets of diamond metallographic cutting pieces that are invisible to the naked eye are no longer secrets. Precision cutting and sampling of ceramics, glass, silicon, carbides, sapphires, and other related semiconductor and optical materials using low concentration diamond cutting blades; Precision cutting and sampling of metals such as stainless steel, aluminum, titanium, and PCB circuit boards using high concentration diamond cutting blades. For production, research and development, and teaching, they are all good choices.


The above experience comes from the sharing of Kemai testing engineers, hoping to bring some help to your work. Please contact Kemai testing engineers to discuss more sample preparation methods together.