Authors: S.K. Thandra, S.K. Choudhury
Addresses: Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016 India. ' Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016 India
Abstract: In this work, an experimental investigation was carried out to establish the influence of surface temperature, cutting speed, feed and depth of cut on cutting forces, surface finish, and tool wear in hot machining. For this purpose, an oxy-acetylene hot machining set-up was designed, fabricated and installed on a lathe machine. Experiments were carried out both in hot machining and conventional machining conditions to determine the relative advantage offered by hot machining. An expression for the effects of cutting conditions, namely, cutting speed, feed and depth of cut on cutting forces, surface roughness, and flank wear was determined using a mathematical model developed by a factorial regression method. Cutting forces, surface roughness and flank wear in hot machining were compared with the conventional machining. It was found from the experimental results that hot machining was effective in bringing down the cutting forces, surface roughness and flank wear by about 34%.
Keywords: hot machining; machinability; design of experiments; DOE; regression analysis; cutting force; surface finish; tool wear; surface temperature; cutting speed; feed; depth of cut; surface roughness; flank wear; mathematical modelling.
International Journal of Machining and Machinability of Materials, 2010 Vol.7 No.3/4, pp.260 - 273
Published online: 07 May 2010 *Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article