Comparison of the machinabilities of Ti6Al4V and TIMETAL® 54M using uncoated WC–Co tools |
| |
| Authors: | M Armendia A Garay L-M Iriarte P-J Arrazola |
| |
| Affiliation: | 1. University of Lyon, Ecole Nationale d’Ingénieurs de Saint-Etienne, LTDS, CNRS UMR5513, 58 rue Jean Parot, 42023 Saint-Etienne, France;2. Faculty of Engineering, Mondragon University, Loramendi 4, 20500 Mondragón, Spain;3. University of Ljubljana, Faculty of Mechanical Engineering, Askerceva 6, 1000 Ljubljana, Slovenia;1. Faculty of Engineering, Mondragon University, Arrasate-Mondragón, Spain;2. Department of Industrial & Mechanical Engineering, University of Brescia, Brescia, Italy;3. Department of Industrial & Systems Engineering, Rutgers University, Piscataway, NJ, USA;1. Faculty of Engineering, Mondragon University, Mondragón 20500, Spain;2. Manufacturing & Automation Research Laboratory, School of Engineering, Industrial & Systems Engineering, Rutgers University, Piscataway, NJ 08854, USA;3. Department of Mechanical, Energy and Management Engineering, University of Calabria, Rende CS 87036, Italy;4. The University of North Carolina at Charlotte, Charlotte, NC 28223, USA;5. Institute for Sustainable Manufacturing (ISM), University of Kentucky, Lexington, KY 40506, USA;1. Centre for Additive Manufacturing, School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, PO Box 2476, Melbourne, Victoria 3001, Australia;2. Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia;3. Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mining and Mechanical Engineering, the University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia;4. Defence Materials Technology Centre, Hawthorn, Victoria 3122, Australia |
| |
| Abstract: | Single-point turning tests of cylindrical bars were undertaken to analyse and compare the machinability of Ti6Al4V, the most common titanium alloy, and TIMETAL® 54M, a newly developed alloy with similar mechanical properties as Ti6Al4V but with better machinability. Conventional cooling and uncoated WC–Co tool inserts were used in the study, because they are the most recommended for machining these materials. The feed and the depth of cut were maintained constant, and only the cutting speed was varied because it is the most affecting parameter. Adhesion of workpiece material in the form of a built-up edge appeared in all the cutting inserts after machining both alloys, which was removed for flank- and crater-wear measurements. Lower wear rates were observed for the Ti54M alloy, especially at high cutting speeds. In the same manner, cutting-force measurements showed lower specific cutting- and feed-force values for the Ti54M alloy. Adiabatic shear bands, a typical feature in the machining of titanium alloys, were observed in chips from both alloys under all cutting conditions. Finally, scanning electron microscopy observations were carried out to analyse the adhered material on the cutting edges of the worn tools where signs of diffusion and attrition were detected. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
