Evaluation of the cutting insert condition influence on the microstructure of surface layer after turning of Inconel 718 alloy *

ABSTRACT: Research concerns the evaluation of the cutting insert condition on the microstructure of the surface layer after longitudinal turning of Inconel 718 alloy using carbide inserts. Value of the VB_C wear index after dry machining with variable feed f and depth of cut a_p was evaluated. White layer was observed up to 2,5 μm.

KEYWORDS: Inconel 718, white layer, inserts wear

STRESZCZENIE: Badano wpływ stanu ostrza na mikrostrukturę technologicznej warstwy wierzchniej po toczeniu wzdłużnym stopu Inconel 718 ostrzami węglikowymi. Oceniano wartość wskaźnika zużycia VB_C po toczeniu na sucho ze zmiennymi parametrami posuwu f oraz głębokości skrawania a_p. Zaobserwowano obecność białej warstwy na głębokości do 2,5 μm.

SŁOWA KLUCZOWE: Inconel 718, biała warstwa, zużycie ostrza

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DOI: https://doi.org/10.17814/mechanik.2019.12.111

 

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