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Effect of the cutting tool geometry on the tool wear resistance when machining Inconel 625

Zlámal Tomáš, Hajnyš Jiří, Petrů Jana, Mrkvica Ivan

Advances in Science and Technology. Research Journal

2018

Vol. 12, no 1

236--243

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.