The Influence of Working Environment and Cutting Conditions on Milling Nickel – Based Super Alloys with Carbide Tools

Abstract

This article is focused on the influence of the work environment and values of cutting conditions on tool wear in machining of nickel – based super alloys. These materials are popular in the aerospace industry and in other demanding applications, due to their excellent mechanical properties. Machining of these materials brings many problems mainly due to their high strength at high temperatures, low thermal conductivity, high hardness and work hardening. Therefore it is necessary to reduce the influence of these factors on the tool, for example by changing the cutting conditions or optimization of cutting environment. The problems with the machining of these super alloys are described. The next part is focused on the experiment where the cutting process and cutting tool wear were evaluated. For the test a milling cutter with indexable inserts was used. During the test the cutting speed and feed rate was changed.