Effects of Controlled Modulation on Interface Tribology and Deformation in Machining

The effects of superimposed, low-frequency modulation on contact conditions at the tool-chip interface and mechanics of machining are analyzed. It is shown that modulation can disrupt the severity of the tool-chip contact, enabling enhanced lubrication of this contact; and discretize chip formation...

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Bibliographic Details
Published in:Tribology letters 2009-09, Vol.35 (3), p.221-227
Main Authors: Mann, J. B, Saldana, C, Moscoso, W, Compton, W. D, Chandrasekar, S
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Chip formation
Corrosion and Coatings
Deformation effects
Frequency modulation
Lubrication
Machining
Materials Science
Nanotechnology
Original Paper
Physical Chemistry
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thin Films
Tribology
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Summary:The effects of superimposed, low-frequency modulation on contact conditions at the tool-chip interface and mechanics of machining are analyzed. It is shown that modulation can disrupt the severity of the tool-chip contact, enabling enhanced lubrication of this contact; and discretize chip formation to small dimensions with controlled size and shape. The deformation strain in the chip is also reduced, suggesting a 40% reduction in energy of machining due to the modulation. Conditions of frequency and amplitude for achieving these effects are presented and confirmed using a compact modulation device that can be retro-fitted onto conventional machine platforms. Implications for enhancing efficiency of industrial machining processes are briefly discussed.
ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-009-9451-5