The Effect of Oil-Mist Application on the Machinability in Turning of Super Heat-Resistant Alloy Inconel 718

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  • インコネル718の旋削加工性能に及ぼすオイルミストの効果
  • インコネル 718 ノ センサクカコウ セイノウ ニ オヨボス オイルミスト ノ コウカ

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Abstract

The purpose of this study is to clarify a possibility of the eco-cutting process for the super heat-resistant alloy Inconel 718. The experimental cutting by turning has been conducted for the improvement of the cutting efficiency of a difficult-to-machine material such as a super heat-resistant alloy Inconel 718 for the protection of the global environment. The cutting processes in the experiments are a dry cutting, a wet cutting with emulsion coolant and an oil-mist cutting. In the experiment, a HW-K10 cemented carbide insert, a Ti compound cermet insert, a TiCN-Al2O3-Ti compound CVD coated cemented carbide insert and a (Ti,Al)N PVD coated cemented carbide insert were used for the turning of the periphery of round bars. It was found that the Inconel 718 of extremely low machinability can be machined at a cutting speed of 100m/min using a combination of (Ti,Al)N PVD coated cemented carbide insert and vegetable oil mist 12ml/h with 0.5MPa air.

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