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Research on tool wear based on multi-scale simulation in high speed cutting Inconel 718

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Fan Y. H. , Wang T. , Hao Z. P. , Lan H. , Cui R. R.

Archives of Civil and Mechanical Engineering

2018

tom Vol. 18, no. 3

928--940

Nickel-based superalloy Inconel718 has excellent properties such as good fatigue resistance, creep resistance, oxidation resistance and corrosion resistance. It has been widely used in aerospace industry. However, nickel-based superalloy is a kind of typical difficult-to process-material. The alloying elements which enhanced material exist in the form of high hardness compound (TiC, NbC and other interphase hard point). These high hardness compounds led to complicate cutting deformation, high cutting temperature, large cutting force and severe tool wear. According to the characteristics in cutting Inconel718 and the microstructure of cemented carbide tool, the wear properties and mechanism of carbide tool in cutting Inconel718 process are revealed by multi-scale analysis method. The main wear forms that wear debris peeled from the tool substrate are given and the evolution mechanism of tool wear caused by the crack in the cutting process is deeply studied.