OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Abstract: The goal of this paper is to study the relation between the input data (conditions and geometry of cut) and answers (wear of tool, forces and cutting temperatures) when machining the Ti-5-5-5-3 alloy treated. This study has shown that the cutting process is different and that the slip forces are preponderates. Compared with other materials, the specific cutting pressure is higher and does not vary according to the cutting speed but depend on feed rate. Moreover, both edge preparation and feed rate have an influence on cutting force direction. Besides, cutting temperatures are high and almost similar to those provided by high speed machining with low cutting speed. Finally, we have shown that failure modes are different from those obtained when machining other titanium alloys. Built-up edge is the most deteriorating phenomenon and no flank wear was met in our study context.
Keywords:Ti-5-5-5-3; cutting force; cutting temperature; cutting conditions; tool geometry; wear.Reference to this paper should be made as follows: Wagner, V., Baili, M., Dessein, G. and Lallement, D. (2011) 'Experimental study of coated carbide tools behaviour: application for Ti-5-5-5-3 turning', Int. J. Machining and Machinability of Materials, Vol. 9, Nos. 3/4, pp.233-248.Biographical notes: Vincent Wagner is an Associate Professor which is presently preparing his PhD work at the Laboratory Genus of Production, France. His researches are focused on cutting force model and cutting temperature. He works also on increasing of titanium alloys machinability.Maher Baili is an Assistant Professor of Mechanical Design and Production in the National Tarbes Engineering School. His research topics are machining of hard-to-cut materials, cutting forces modelling and surface integrity.Gilles Dessein is an Assistant Professor of Production in the National Tarbes Engineering School. His research topics are high performance machining and CAD-CAM. His current research focuses on stability and dynamics of milling process, solution against thin walled part vibrations, surface integrity and machining of hard-to-cut materials.Daniel Lallement works as an Engineer in the Department of Manufacturing Engineering at the Bidos Center, Messier Dowty. His actual topic is the analyses of Ti-5-5-5-3 cutting specificities, in order to develop better tools and improve a global process that will ensure optimised productivity gains.