Selected aspects of the design of special monolithic carbide milling cutters for austenitic steels

Abstract

In many machining applications, the appropriate selection of cutting toolsin relation to the type of material being machined, the machining parametersand the required shape and dimensional accuracy is of particular importance.This especially applies to operations requiring the use of specific tools, i.e. toolsthat are not included in the standard offer but are tailor-made according tothe individual needs of the customer. The article focuses on the machiningproblems of selected austenitic grades of stainless steel and the selection oftechnologies (i.e. machining parameters and strategies and tool geometry)concerning the design and use of special monolithic carbide milling cutters.The possibilities of manufacturing elements from austenitic steels with highshape and dimensional accuracy and high surface layer quality are limited.Due to their high ductility, the tendency to create growths on the cutting edgeand the high compression strength coefficient, these materials pose a serioustechnological challenge. The analysis of phenomena presented in the articleforms the basis for developing guidelines for designing the machining processusing special monolithic carbide cutters dedicated for specific applications.