Změny zbytkových napětí v povrchových vrstvách VBD po aplikaci povrchových úprav

Abstract

The Master thesis deals with issue of ressidual stresses in surface treatments cutting inserts of cemented carbide deposited by chemical vapour deposition. The theory part discribes technology of surface treatments on durability of cutting tools and possibility measurement of ressidual stresses. The experimental part is devoted to the technology of wet blasting, in which the effect of the process of parameters of the technology on the size and character of the residual stress in the surface layers of the cutting tool is investigated. On the basis of the obtained results, the aim will be to evaluate the optimal parameters of the wet blasting method, which ensure a high level of repeatability of production, easy controllability and overall stability of the production process with regard to the durability of cutting tools.