An Investigation of Heat Dissipation in High Speed Machining

Abstract:

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High speed machining (HSM) is finding wider applications due to its economic advantages, such as faster material removal rates, and its technological merits, such as improved surface finish. Nevertheless, the application of HSM also brings about some undesirable results. For example, the tool life and surface integrity of a machined component are greatly affected by the large amount of heat generated, but heat dissipation during an HSM has not been well understood. This paper aims to achieve a quantitative understanding of the heat dissipation in HSM using a bar turning configuration. Based on the calorimetric method and utilizing water as the heat transfer medium, the temperature rise in water was measured to determine the fractions of heat dissipated into the chips, the tool and the workpiece during machining. The obtained results show that the chips take the largest portion of the heat generated and this fraction increases with the increase in feed.

Info:

Periodical:

Advanced Materials Research (Volumes 69-70)

Edited by:

Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen

Pages:

480-484

DOI:

10.4028/www.scientific.net/AMR.69-70.480

Citation:

Y. M. Quan et al., "An Investigation of Heat Dissipation in High Speed Machining", Advanced Materials Research, Vols. 69-70, pp. 480-484, 2009

Online since:

May 2009

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Price:

$35.00

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