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Erschienen in: The International Journal of Advanced Manufacturing Technology 9-10/2021

17.07.2021 | ORIGINAL ARTICLE

Milling Inconel 718 workpiece with cryogenically treated and untreated cutting tools

verfasst von: Hüseyin Gürbüz, Şehmus Baday

Erschienen in: The International Journal of Advanced Manufacturing Technology | Ausgabe 9-10/2021

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Abstract

Although Inconel 718 is an important material for modern aircraft and aerospace, it is a kind material, which is known to have low machinability. Especially, while these types of materials are machined, high cutting temperatures, BUE on cutting tool, high cutting forces, and work hardening occur. Therefore, in recent years, instead of producing new cutting tools that can withstand these difficult conditions, cryogenic process, which is a heat treatment method to increase the wear resistance and hardness of the cutting tool, has been applied. In this experimental study, feed force, surface roughness, vibration, cutting tool wear, hardness, and abrasive wear values that occurred as a result of milling of Inconel 718 material by means of cryogenically treated and untreated cutting tools were investigated. Three different cutting speeds (35-45-55 m/min) and three different feed rates (0.02-0.03-0.04 mm/tooth) at constant depth of cut (0.2 mm) were used as cutting parameters in the experiments. As a result of the experiments, lower feed forces, surface roughness, vibration, and cutting tool wear were obtained with cryogenically treated cutting tools. As the feed rate and cutting speed were increased, it was seen that surface roughness, vibration, and feed force values increased. At the end of the experiments, it was established that there was a significant relation between vibration and surface roughness. However, there appeared an inverse proportion between abrasive wear and hardness values. While BUE did not occur during cryogenically treated cutting tools, it was observed that BUE occurred in cutting tools which were not cryogenically treated. Also, in this study, the statistical validity of the experimental values was tested with the help of second-order equations and analyses of variance (ANOVA). R2 values obtained as 99.14%, 99.76%, and 97.98% for vibration, surface roughness, and feed force values were modeled statistically with the help of second-order equations, respectively.

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Literatur
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Zurück zum Zitat Kursuncu B, Caliskan H, Guven SY, Panjan P (2018) Improvement of cutting performance of carbide cutting tools in milling of the Inconel 718 superalloy using multilayer nanocomposite hard coating and cryogenic heat treatment. Int J Adv Manuf Technol 97(1):467–479. https://doi.org/10.1007/s00170-018-1931-zCrossRef Kursuncu B, Caliskan H, Guven SY, Panjan P (2018) Improvement of cutting performance of carbide cutting tools in milling of the Inconel 718 superalloy using multilayer nanocomposite hard coating and cryogenic heat treatment. Int J Adv Manuf Technol 97(1):467–479. https://​doi.​org/​10.​1007/​s00170-018-1931-zCrossRef
Metadaten
Titel
Milling Inconel 718 workpiece with cryogenically treated and untreated cutting tools
verfasst von
Hüseyin Gürbüz
Şehmus Baday
Publikationsdatum
17.07.2021
Verlag
Springer London
Erschienen in
The International Journal of Advanced Manufacturing Technology / Ausgabe 9-10/2021
Print ISSN: 0268-3768
Elektronische ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-021-07688-x

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