NEW MANUFACTURING TECHNOLOGY OF CARBIDE PLATES USED IN METAL MACHINING
Abstract
The article discusses the results of research work on an innovative technology for the manufacture of carbide blades for metal-machining tools from ultrafine tungsten powders.Analysis of the results of the study showed that the shape and dimensions, the level of residual internal stress in the cutting part of the machining tools, as well as the granulometric composition of tungsten powders affect the resistance of carbide plates.In the studies carried out, special attention was paid to the study of the stress state of the working elements.The stress state of an insert made of a hard alloy (five-fold difference in thermal expansion coefficients) and a molybdenum alloy (three-fold difference in thermal expansion coefficients) steel 40XNML leads to the creation of a state of all-round compression in the insert upon cooling.