In metallographic analysis work, only by obtaining a flat surface as free of deformation as possible can the next step of sample preparation be carried out quickly and easily. The more suitable cutting method is the wet grinding wheel cutting method, which causes little damage to the sample and requires a short time for cutting and sampling, making it a good method for fast cutting and sampling. It is worth noting that you must choose the right metallographic cutting blade for wet grinding wheel cutting, otherwise it may not meet the technical requirements or cause serious damage to the sample, leading to sample preparation failure.

Grinding wheel metallographic cutting pieces are composed of abrasive materials and adhesives, and different abrasives, adhesives, and component ratios determine the different properties of the cutting pieces, making them suitable for cutting different materials. In addition, it is necessary to select and match the outer circle size, aperture, and thickness parameters based on the metallographic cutting machine used and the size of the cut sample.

The grinding wheel cutting machine requires that the aperture of the metallographic cutting blade of the grinding wheel is generally 32mm, while the aperture required for precision cutting machines should be 12.7mm. The size of the sample being cut is relatively large, and a cutting piece with a larger outer circle size should be selected. The relative thickness will also be thicker. Therefore, when selecting a cutting piece, thickness is also a parameter that needs to be noted.


Also, it is necessary to select a suitable cutting blade based on the material hardness range of the cut sample. There are several models of cutting blades of the same size that are tailored to different materials. Manufacturers usually provide a selection table, which should be matched according to. The editor of Standard Music Safety Technology will present the selection table of QMAXIS grinding wheel metallographic cutting blades in the United States for your reference.

According to the selection table, select the grinding wheel correctly based on the properties of the material. The correct selection of grinding wheel metallographic cutting pieces can ensure that the surface deformation of the cut sample is small and the flatness is good, achieving the goal of rapid cutting and sampling.

It is worth noting that when working with grinding wheel metallographic cutting blades, it is necessary to use coolant to wash the cutting blades to avoid burning the sample due to frictional heat.


Mastering the above methods, selecting the right metallographic cutting piece, fast cutting and sampling is very simple!