0
Research Papers

The Influence of Cryogenic Coolants in Machining of Ti–6Al–4V

[+] Author and Article Information
B. Dilip Jerold

Research Scholar

M. Pradeep Kumar

Associate Professor
Department of Mechanical Engineering,
CEG Campus,
Anna University Chennai,
Chennai 600 025, India

Contributed by the Manufacturing Engineering Division of ASME for publication in the Journal of Manufacturing Science and Engineering. Manuscript received March 8, 2011; final manuscript received November 10, 2012; published online May 24, 2013. Assoc. Editor: Patrick Kwon.

J. Manuf. Sci. Eng 135(3), 031005 (May 24, 2013) (8 pages) Paper No: MANU-11-1266; doi: 10.1115/1.4024058 History: Received March 08, 2011; Revised November 10, 2012

Machining of titanium alloy Ti–6Al–4V is a challenging task because of the greatly increased cutting temperature that results in short tool life. Numerous attempts have been made in the past by employing various cutting fluids for machining purpose, including liquid nitrogen (LN2) as the cryogenic coolant. This study deals with the influence of cryogenic coolants, especially LN2 and carbon dioxide (CO2), in machining of Ti–6Al–4V and its effects on cutting temperature, cutting forces, surface roughness, chip morphology, and tool wear. The results obtained in cryogenic machining are compared with that of dry and wet machining. Cutting temperature was reduced to an extent of 36% and 47% in cryogenic CO2 machining and cryogenic LN2 machining in comparison with wet machining. The application of CO2 produced reduced cutting forces up to 24% and improved surface finish up to 48% compared to cryogenic LN2 machining. It also produced better chip control and minimized tool wear than dry, wet, and LN2 machining.

FIGURES IN THIS ARTICLE
<>
Copyright © 2013 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 6

SEM views of the worn-out inserts (crater wear) after machining for 5 minutes under dry, wet, and cryogenic cooling conditions at different cutting velocities: (a) 41 m/min; (b) 94 m/min; and (c) 145 m/min

Grahic Jump Location
Fig. 7

SEM views of the worn-out inserts (flank wear) after machining for 5 minutes under dry, wet, and cryogenic cooling conditions at different cutting velocities: (a) 41 m/min; (b) 94 m/min; and (c) 145 m/min

Grahic Jump Location
Fig. 5

Comparison of surface roughness values at different cutting velocities: (a) 41 m/min; (b) 94 m/min; and (c) 145 m/min

Grahic Jump Location
Fig. 4

Comparison of main cutting force in different machining environments with varying feed rates at different velocities: (a) 41 m/min; (b) 94 m/min; and (c) 145 m/min

Grahic Jump Location
Fig. 3

Variation of cutting temperature under different machining environments: (a) 41 m/min; (b) 94 m/min; and (c) 145 m/min

Grahic Jump Location
Fig. 2

Schematic view of cryogenic LN2 machining setup

Grahic Jump Location
Fig. 1

Schematic view of cryogenic CO2 machining setup

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In