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- W158617067 abstract "Unique combinations of high strength properties maintained at elevated temperature and highresistance to chemical degradation have made Nickel based alloy, Inconel 718 suitable for application asaerospace components. However, the same properties are responsible for very poor machinability of thematerial, as Inconel is one of the most difficult to cut materials. The main reason for poor machinability isgeneration of high heat during machining which lead to premature failure of the tool due to plasticdeformation and diffusion. Uncoated and coated tools have been found to be not efficient in cutting thismaterials and the application of preheated resulted in not significant improvement in their machinability.PCD tools are not recommended for machining this material since it contains iron which acts as a catalystto convert diamond into graphite at temperatures in excess of 700 0C. PCBN tools are very costly andalso did not show very good performance in machining Inconel 718. Ceramic tools have proved to haveperformed well in machining the material. However, there was so far no work performed performance ofceramic tools in machining Inconel 718 using preheated technique. Since ceramic tools can perform underhigh temperatures, it was expected that preheated machining using ceramic tools would desired results. Inthis research work induction heating technique in combination of the application of ceramic tools wasadopted as one of the machining techniques in order to improve the machinability of the material. Theeffect of preheated machining of Inconel 718 has been analyzed in terms of tool wear, surface roughnessand chip formation. The advantages of preheated machining are demonstrated by appreciable increase intool life, better surface roughness values and improved chip formation compared to room temperaturemachining." @default.
- W158617067 created "2016-06-24" @default.
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- W158617067 date "2010-01-01" @default.
- W158617067 modified "2023-09-27" @default.
- W158617067 title "Enhancement of machinability of nickel based alloy - inconel 718 byinduction preheating in end milling using ceramic inserts" @default.
- W158617067 hasPublicationYear "2010" @default.
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