The Effect of MQL on Tool Wear Progression in Low-Frequency Vibration-Assisted Drilling of CFRP/Ti6Al4V Stack Material

In this paper, the tool wear mechanisms for low-frequency vibration-assisted drilling (LF-VAD) of carbon fiber-reinforced polymer (CFRP)/Ti6Al4V stacks are investigated at various machining parameters. Based on the kinematics analysis, the effect of vibration amplitude on the chip formation, uncut c...

Full description

Saved in:
Bibliographic Details
Published inJournal of Manufacturing and Materials Processing Vol. 5; no. 2; p. 50
Main Authors Hussein, Ramy, Sadek, Ahmad, Elbestawi, Mohamed A., Attia, Helmi
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.06.2021
Subjects
Amplitudes
Carbon fiber reinforced plastics
Carbon fibers
CFRP/Ti6Al4V
Chip formation
Cooling
Cryogenic engineering
Cutting parameters
Cutting speed
Cutting tools
Cutting wear
Delamination
Drilling
Fiber reinforced polymers
Geometric accuracy
High temperature
Kinematics
low-frequency vibration-assisted drill
Machining
minimum quantity lubricant
Morphology
Process parameters
Productivity
Rake faces
stacked material
Titanium alloys
Titanium base alloys
Tool wear
Vibration analysis
Vibration effects
vibration-assisted drilling
Wear mechanisms
Canada
Online AccessGet full text

Cover

More Information
Summary:In this paper, the tool wear mechanisms for low-frequency vibration-assisted drilling (LF-VAD) of carbon fiber-reinforced polymer (CFRP)/Ti6Al4V stacks are investigated at various machining parameters. Based on the kinematics analysis, the effect of vibration amplitude on the chip formation, uncut chip thickness, chip radian, and axial velocity are examined. Subsequently, the effect of LF-VAD on the cutting temperature, tool wear, delamination, and geometrical accuracy was evaluated for different vibration amplitudes. The LF-VAD with the utilization of minimum quantity lubricant (MQL) resulted in a successful drilling process of 50 holes, with a 63% reduction in the cutting temperature. For the rake face, LF-VAD reduced the adhered height of Ti6Al4V by 80% at the low cutting speed and reduced the crater depth by 33% at the high cutting speed. On the other hand, LF-VAD reduced the flank wear land by 53%. Furthermore, LF-VAD showed a significant enhancement on the CFRP delamination, geometrical accuracy, and burr formation.
ISSN:2504-4494
2504-4494
DOI:10.3390/jmmp5020050