Preliminary communication

The machinability of nickel-based alloys in high-pressure jet assisted (HPJA) turning

D. Kramar ; Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana, Slovenia
M. Sekulić ; Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia
Z. Jurković ; Faculty of Engineering, University of Rijeka, Rijeka, Croatia
J. Kopač ; Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana, Slovenia

Abstract

Due to their mechanical, thermal and chemical properties, nickel-based alloys are generally included among materials that are hard to machine. An experimental study has been performed to investigate the capabilities of conventional and high-pressure jet assisted (HPJA) turning of hard-to-machine materials, namely Inconel 718. The capabilities of different hard turning procedures are compared by means of chip breakability. The obtained results show that HPJA method offers a significant increase in chip breakability, under the same cutting conditions (cutting speed, feed rate, depth of cut).

Keywords

machinability; chip shape; high-pressure jet assisted turning

Hrčak ID:

100829

URI

https://hrcak.srce.hr/100829

Publication date:

1.10.2013.

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