A plain surface, with the lesser possible deformation, is preferred, in order to facilitate and to speed up future preparations. A method of sufficiently efficient cut is the lubricated abrasive cut, that will introduce a minimum amount of damages in relation to the necessary time for the cut. The lubricated abrasive cut uses a record of composed cut of an abrasive and an covering. The cooling liquid wets the record to prevent damages to the sample due to the heat generated for the friction. The cooling one also removes dirts of the cut area Depending on the material to be cut, can be necessary records of different compositions. The hardness and the ductilidade of the material influence in the choice of the cut record.
Synthecized ceramic or are secionados with coated diamonds of metal or bakelite. For ferrous materials, typically aluminum oxide is used, or comumente call of alumin (Al2O3), coated of bakelite. Nitreto of cubical boron (CBN) also is widely used for the types more hard of ferrous materials. The not-ferrous metals are cut with silicon carbide (SiC) coated of bakelite. Description of the assay: To cut material, body-of-test, bar vergalho, in a metalogrfica cutting with dimensions of cut of approximately of 5 mm.
Arrests it part in the equipment, is closed lateral, leagues to the record and bomb to it of lubrication and cuts the material of the desired size. 2. Passo- Inlaying the intention of the inlaying is to protect the fragile or coated materials during the preparation, beyond facilitating the manuscript of the sample. The inlaying also is used to produce samples of so great uniform. Two different techniques are available: the inlaying hot and the inlaying the cold. Depending on the number of samples and the necessary quality, both the inlaying techniques possess certain advantages. The inlaying the hot one is ideal for one high turn of the volume of samples admitted in the laboratory.