Open AccessDISCONTINUOUS DRILLING OF INCONEL 718
Author(s) -
Tobias Wolf,
Ivan Iovkov,
D. Biermann
Publication year - 2021
Publication title -
mm science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.195
H-Index - 10
eISSN - 1805-0476
pISSN - 1803-1269
DOI - 10.17973/mmsj.2021_7_2021061
Subject(s) - inconel , machining , drilling , tool wear , process (computing) , materials science , thermal , mechanical engineering , metallurgy , computer science , engineering , alloy , operating system , physics , meteorology
Inconel 718 as one of the most common nickel-base alloys is mainly characterized by its high-temperature strength. Thus, in particular drilling is subject to high tool wear due to high thermomechanical loads on the cutting edges. To reduce those effects an alternative process design of discontinuous drilling was developed which contains a periodical interruption of the machining process with the aim of a targeted wetting and cooling of the tool at regular intervals. Thus, a significant reduction of the thermal load on the tool should provide a benefit to the drilling process and extend the tool life. Numerical and experimental investigations were used to analyze the introduced process strategy modification.