Performance of Synthetic and Mineral Soluble Oil When Turning AISI 8640 Steel

[+] Author and Article Information
A. R. Machado, M. F. Motta, M. B. da Silva

Laboratório de Pesquisa em Usinagem, Departmento de Engenharia Mecânica, Universidade Federal de Uberlândia, 38.400-089 Uberlândia-MG-Brazil

J. Manuf. Sci. Eng 119(4A), 580-586 (Nov 01, 1997) (7 pages) doi:10.1115/1.2831190 History: Received October 01, 1995; Revised May 01, 1996; Online January 17, 2008


The present work shows a comparative study of the application of synthetic and semi synthetic, mineral soluble oil (at concentrations of 3 and 10 percent) as well as dry cut when turning AISI 8640 steel bars with triple coated (TiC,Al2 O3 ,TiN) P35 grade of cemented carbide tools. Tool lives, cutting forces, cutting temperatures and surface roughness were considered to evaluate the cutting fluids. Generally, the semi-synthetic gave longer tool life based on flank wear parameter VB. The surface roughness was not sensitive to the lubrication quality, if wear effects are not considered. Mean tool-chip interface temperature was lower with the synthetic fluid, followed by the semi-synthetic, mineral soluble oils and dry cutting, respectively. The inverse of this order was true for the cutting forces.

Copyright © 1997 by The American Society of Mechanical Engineers
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