Dust Emission Induced By Friction Modifications At Tool Chip Interface In Dry Machining In MMC{sub p}

Journal Article · Mon Jan 17 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3552399· OSTI ID:21513158

Kremer, Arnaud; El Mansori, Mohamed ^[1]

---

1. LMPF, EA 4106, Arts et Metiers Paristech, 51000 Chalons en Champagne (France)

This paper investigates the relationship between dust emission and tribological conditions at the tool-chip interface when machining Metal Matrix composite reinforced with particles (MMCp) in dry mode. Machining generates aerosols that can easily be inhaled by workers. Aerosols may be composed of oil mist, tool material or alloying elements of workpiece material. Bar turning tests were conducted on a 2009 aluminum alloy reinforced with different level of Silicon Carbide particles (15, 25 and 35% of SiCp). Variety of PCD tools and nanostructured diamond coatings were used to analyze their performances on air pollution. A spectrometer was used to detect airborne aerosol particles in the size range between 0.3{mu}m to 20 {mu}m and to sort them in 15 size channels in real time. It was used to compare the effects of test parameters on dust emission. Observations of tool face and chip morphology reveal the importance of friction phenomena. It was demonstrated that level of friction modifies chip curvature and dust emission. The increase of level of reinforcement increase the chip segmentation and decrease the contact length and friction area. A ''running in'' phenomenon with important dust emission appeared with PCD tool due to the tool rake face flatness. In addition dust generation is more sensitive to edge integrity than power consumption.

• OSTI ID: 21513158
• Journal Information: AIP Conference Proceedings, Vol. 1315, Issue 1; Conference: AMPT2010: International conference on advances in materials and processing technologies, Paris (France), 24-27 Oct 2010; Other Information: DOI: 10.1063/1.3552399; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AEROSOLS
AIR POLLUTION
ALUMINIUM ALLOYS
COATINGS
COMPARATIVE EVALUATIONS
COMPOSITE MATERIALS
DIAMONDS
DUSTS
EMISSION
FIBERS
FRICTION
INTERFACES
MACHINING
METALS
MODIFICATIONS
NANOSTRUCTURES
PARTICLES
PERFORMANCE
REINFORCED MATERIALS
SILICON CARBIDES
SPECTROMETERS
ALLOYS
CARBIDES
CARBON
CARBON COMPOUNDS
COLLOIDS
DISPERSIONS
ELEMENTS
EVALUATION
MATERIALS
MEASURING INSTRUMENTS
MINERALS
NONMETALS
POLLUTION
SILICON COMPOUNDS
SOLS