The metallographic precision cutting machine in the laboratory is a common metallographic sampling equipment used for precision cutting and sampling of materials that are difficult to cut, such as soft, hard, and brittle materials. If a precision cutting machine wants to fully exert its good performance and more functions, the selection of metallographic cutting blades is the key.


What metallographic cutting pieces are available for selection? The metallographic cutting blades that can be configured for metallographic precision cutting machines can be divided into two categories. I would like to share them with friends and keep them for reference when using the selection manual. This article takes the metallographic cutting pieces of QMAXIS in the United States as an example to introduce.


1、 Diamond&CBN cutting blade


The prerequisite for diamond&CBN cutting blades suitable for metallographic precision cutting machines is that they must meet the axial aperture of 12.7mm (0.5in); Secondly, the diameter of the outer circle ranges from 3 inches to 8 inches, which can meet the cutting selection of different models and sizes of samples. Precision cutting machines with different cutting capabilities have a range of selection for the diameter of the outer circle of the cutting blade, which should be consulted from the technical parameters of the cutting machine.


The characteristic is that diamond&CBN cutting blades are non abrasive blades, with very thin thickness, high hardness, and wear resistance. The cutting edge is narrow, the material wear is low, the cutting surface deformation is small, and the cutting section is flat, which is conducive to reducing subsequent grinding and polishing time.

In practical applications, it is necessary to comprehensively consider factors such as the size and size of the metallographic cutting machine, the characteristics of the material being cut, hardness, cutting machine speed, and the coolant used, and then select a suitable model to fully utilize the cutting ability of the precision cutting machine and obtain an ideal cutting cross-section. The following is the selection table for QMAXIS diamond&CBN cutting blades, which can be compared for selection.

2、 Grinding wheel cutting blade


The prerequisite for a grinding wheel cutting blade suitable for metallographic precision cutting machines is that it must meet the axial aperture of 12.7mm (0.5in). Secondly, the diameter of the outer circle is still available from 3 inches to 8 inches, which can meet the cutting selection of different models and sizes of samples. Precision cutting machines with different cutting capabilities have a range of selection for the diameter of the outer circle of the cutting blade, which should be consulted from the technical parameters of the cutting machine. In addition, the thickness of the grinding wheel cutting blade must be very thin to meet the requirements of precision cutting. The thickness range of the grinding wheel cutting blade of QMAXIS is 0.3-0.8mm, making it a saw blade with excellent performance and technical level among precision cutting grinding wheel cutting blades.


The characteristic is that the grinding wheel cutting blade is a wear type saw blade, with a very thin thickness and different hardness models. It has a good manufacturing process, making the saw blade more wear-resistant and has a long service life compared to similar products. Similarly, due to the very thin thickness of the saw blade, the cutting edge is very small, the material wear is naturally reduced, the cutting surface is flat, the deformation is small, and there are no cutting defects such as burrs or rounding, which is also beneficial for reducing subsequent grinding and polishing time.

Similarly, in practical applications, it is necessary to comprehensively consider factors such as the size and size of the metallographic cutting machine, the characteristics of the material being cut, hardness, cutting machine speed, and the coolant used, and then select a suitable model to fully utilize the cutting ability of the precision cutting machine and obtain an ideal cutting cross-section. The following is the selection table for the thin grinding wheel cutting blades used in the QMAXIS precision cutting machine, which can be compared for selection.

With these two selection tables, I believe it will be very easy to choose metallographic cutting blades for your metallographic precision cutting machine. Various metallographic cutting machine manufacturers and metallographic cutting blade manufacturers will provide users with similar selection manuals, technical parameters, and other information. By mastering the method, everyone can choose the appropriate model of metallographic cutting pieces. If you encounter difficult problems in your work, the pulse detection engineer is willing to provide you with a quick solution, and you can contact us.