Cryogenic turning of the Ti–6Al–4V alloy with modified cutting tool inserts

Productivity in the machining of titanium alloys is adversely affected by rapid tool wear as a consequence of high cutting zone temperature. Conventional cutting fluids are ineffective in controlling the cutting temperature in the cutting zone. In this research work, an attempt has been made to inve...

Full description

Saved in:
Bibliographic Details
Published in:Cryogenics (Guildford) 2011, Vol.51 (1), p.34-40
Main Authors: Dhananchezian, M., Pradeep Kumar, M.
Format: Article
Language:English
Subjects:
A. Cryogenic turning
alloys
Applied sciences
B. Nitrogen
C. Temperature
cooling
Cryogenic cooling
Cryogenics
cutting
Cutting fluids
Cutting tools
Cutting wear
Energy
Energy. Thermal use of fuels
Exact sciences and technology
F. Tribology
heat
Inserts
Machining
nitrogen
Refrigerating engineering. Cryogenics. Food conservation
surface roughness
temperature
titanium
Titanium base alloys
Tool wear
Turning
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Productivity in the machining of titanium alloys is adversely affected by rapid tool wear as a consequence of high cutting zone temperature. Conventional cutting fluids are ineffective in controlling the cutting temperature in the cutting zone. In this research work, an attempt has been made to investigate the effect of liquid nitrogen when it is applied to the rake surface, and the main and auxiliary flank surfaces through holes made in the cutting tool insert during the turning of the Ti–6Al–4V alloy. The cryogenic results of the cutting temperature, cutting forces, surface roughness and tool wear of the modified cutting tool insert have been compared with those of wet machining. It has been observed that in the cryogenic cooling method, the cutting temperature was reduced by 61–66% and the surface roughness was reduced to a maximum of 36% over wet machining. The cutting force was decreased by 35–42% and the flank wear was reduced by 27–39% in cryogenic cooling over that of wet machining. Cryogenic cooling enabled a substantial reduction in the geometry of tool wear through the control of the tool wear mechanisms. The application of liquid nitrogen to the heat generation zones through holes made in the cutting tool insert was considered to be more effective over conventional machining.
ISSN:0011-2275
1879-2235
DOI:10.1016/j.cryogenics.2010.10.011