Effect of the Cutting Tool Geometry on the Tool Wear Resistance when Machining Inconel 625

Abstract

The paper deals with the design of a suitable cutting geometry of a tool for the machining of the Inconel 625 nickel alloy. This alloy is among the hard-to-machine refractory alloys that cause very rapid wear on cutting tools. Therefore, SNMG and RCMT indexable cutting insert were used to machine the alloy. The selected insert geometry should prevent notch wear and extend tool life. The alloy was machined under predetermined cutting conditions. The angle of the main edge and thus the size and nature of the wear changed with the depth of the material layer being cut. The criterion for determining a more suitable cutting geometry was the tool's durability and the roughness of the machined surface.

Effect of Geometrical Parameter Cutting Edge on the Toroidal Forming Surface of a Solid End Mill

“…The formation of surfaces of parts made of hard-to-work materials, such as heat-resistant nickel steels and stainless alloys, is accompanied by a high power load cause by hardening. In order to structurally increase the strength of the cutting tool, the tops of the teeth are shaped in the form of radius rounding that allows to improve the distribution of power loads [1][2][3][4]. In the process of cutting, the radius surface forms a toroidal shaping section, which provides the possibility of machining end, cylindrical and shaped surfaces of various configurations.…”

A study on machinability of nickel based superalloy using micro-textured tungsten carbide cutting tools

“…It is justified with an existing research that the adhesion of bulk over the tool nose is due to the effect of metal chip deformation. The adhesion of bulk over the rake face is an unstable part and it is unavoidable on nickel alloy machining [21]. These changes are due to the deformation of bulk at a maximum cutting conditions and it can be controlled with average values of machining process parameters [22,23].…”