Paper 13: Experiments on Lubrication Breakdown in Friction Tests and in Cutting of Metal on a Lathe

Rowe, G. W.; Smart, E. F.

doi:10.1243/pime_conf_1964_179_285_02

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“…Other evidence supporting the existence of this form of normal and shear stress distributions at the chip-tool interface has been presented by several researchers using photoelastic tools (Chandrasekaran and Kapoor 1965;Usui and Takeyama 1960). The ineffectiveness of vapour lubricant at relatively higher speed has been attributed to the inaccessibility of the vapour to the contact zone and insufficient time for chemical reaction (Rowe andSmart 1964-1965). Any lubricating activity was restricted to the sliding region.…”

Section: Utilisation Of Environmental Friendly Gaseous and Vapour In mentioning

confidence: 82%

Towards Green Lubrication in Machining

Hsien¹

2015

SpringerBriefs in Molecular Science

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Section: Utilisation Of Environmental Friendly Gaseous and Vapour In mentioning

confidence: 82%

Towards Green Lubrication in Machining

Hsien¹

2015

SpringerBriefs in Molecular Science

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“…At high cutting speeds, the condition of sliding contact between the tool and the chip become characteristics of unlubricated friction behaviour. The ineffectiveness of vapour lubricant at relatively higher speed has been attributed to the inaccessibility of the vapour to the contact zone and insufficient time for chemical reaction Smart 1964-1965).…”

Section: Chapter 4 Utilisation Of Environmental Friendly Gaseous and mentioning

confidence: 99%

Utilisation of Environmental Friendly Gaseous and Vapour in Machining

Hsien

2014

SpringerBriefs in Molecular Science

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Air, oxygen and nitrogen are examples of environmental friendly lubricants in the gaseous state. Even at low pressures, they have strong influences on the cutting performance. However, as the cutting speed increases, the effectiveness of the gas lubricants attenuated. This has conventionally been attributed to the reduction in interface penetration and thus of intimate contact and adhesion between chip and tool. This chapter also provides a review of the advanced techniques supplying gaseous and vapours capable of prolonging tool life at high cutting speeds.

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