Journal
JOURNAL OF MANUFACTURING PROCESSES
Volume 15, Issue 4, Pages 419-425Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jmapro.2013.06.002
Keywords
Titanium machining; Atomized droplets; Fluid concentration; Cooling and lubrication; Tool life
Categories
Funding
- TechSolve, Inc., Cincinnati, OH
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1233944] Funding Source: National Science Foundation
Ask authors/readers for more resources
The aim of this work is to investigate the effect of metal-working fluid (MWF) concentration on the machining responses including tool life and wear, cutting force, friction coefficient, chip morphology, and surface roughness during the machining of titanium with the use of the ACF spray system. Five different concentrations from 5 to 15% of a water-soluble metalworking fluid (MWF) were applied during turning of a titanium alloy, Ti-6Al-4V. The thermo-physical properties such as viscosity, surface tension and thermal conductivity of these concentrations were also measured. The test results demonstrate that the tool life first extends with the increase in MWF concentration and then drops with further increase. At low concentration (e.g., 5%), a lack of the lubrication effect causes to increase in a higher friction at the tool-chip interface resulting in severe chipping and tool nose/flank wear within a short machining time. On the other hand, at high concentration, the cooling effect is less. This increases cutting temperature and a faster thermal softening/chipping/notching of the tool material and higher friction at the tool-chip-workpiece interaction zones resulting in early tool failure. A good balance between the cooling and the lubrication effects seems to be found at the 10% MWF concentration as it offers the best machining performance. However, machining with flood coolant is observed to perform the best in the range of 5-7%. (C) 2013 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available