The ultimate goal of metallographic sample preparation is to prepare a flat mirror surface for observation after corrosion or direct observation. The importance of grinding and polishing is obvious. If cutting and mounting are the preliminary steps of sample preparation, then grinding and polishing are the most important steps in the sample preparation process. Friends who are fortunate enough to avoid the cutting and mounting processes should be more cautious and careful in the grinding and polishing stage, otherwise the work will fail.
Metallographic analysis is generally performed on cross-sections for microscopic observation. Most of the samples after cutting are irregular in shape, which is inconvenient to clamp and grind, so most of the cut samples need to be inlaid into a standard size. Inlay is actually to fill and cover the cut sample with liquid resin in a fixed membrane cavity. After the liquid resin is solidified, it is demolded to form a standard-shaped inlaid sample.
Metallographic analysis is generally performed by microscopic observation of cross sections. Most of the samples after cutting are irregular in shape, which is inconvenient to clamp and grind, so most of the cut samples need to be inlaid into a standard size.
Cutting is the first step in the metallographic sample preparation process. The quality of cutting directly determines whether the entire sample preparation process can be successful, so it is very critical.
Metallographic sample preparation is a technical job, and cutting is the first. The quality of cutting directly determines whether the entire sample preparation process can be successful, so it is very critical. The sample maker needs to understand the basic conditions of the target material, such as the mechanical performance indicators such as hardness and strength of the material, the key observation points, and the taboo requirements of the target material. Then, according to these characteristics, the appropriate cutting process can be formulated.
For metallographic practitioners, when they see a beautiful metallographic photo, they always can't let it go, and they can't help but sigh that other people's microscopes are different. However, this is not the case. The wonderful photos are first polished, and the well-polished samples are not demanding on the microscope.
Metallographic sample preparation is a technical job, and cutting is the first. The quality of cutting directly determines whether the entire sample preparation process can be successful, so it is very critical. The sample maker needs to understand the basic conditions of the target material, such as the mechanical performance indicators such as hardness and strength of the material, the key observation points, and the taboo requirements of the target material. Then, according to these characteristics, the appropriate cutting process can be formulated.
Cutting is the first step in the metallographic sample preparation process. The quality of cutting directly determines whether the entire sample preparation process can be successful, so it is very critical.