THE MACHINABILITY OF NICKEL-BASED ALLOYS IN HIGH-PRESSURE JET ASSISTED (HPJA) TURNING

THE MACHINABILITY OF NICKEL-BASED ALLOYS IN HIGH-PRESSURE JET ASSISTED (HPJA) TURNING

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 mat...

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Veröffentlicht in:Metalurgija 2013-10, Vol.52 (4), p.512-514
Hauptverfasser: Kramar, D, Kopac, J, Sekulic, M, Jurkovic, Z
Format: Artikel
Sprache:eng
Schlagworte:
Chip breakers
chip shape
Chips
Cutting speed
Feed rate
high-pressure jet assisted turning
Machinability
Nickel base alloys
Superalloys
Turning
Turning (machining)
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Zusammenfassung: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).
ISSN:0543-5846
1334-2576