High-speed machining of titanium alloys using the driven rotary tool |
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Authors: | Shuting Lei Wenjie Liu |
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Affiliation: | 1. Department of Mechanical Systems Engineering, Hiroshima University, Kagamiyama 1-4-1, Higashi Hiroshima, 739-8527, Japan;2. Kawasaki Heavy Industries, Ltd., Kawasaki-cho 1-1, Akashi, 673-8666, Japan;1. Video and Image Processing Group, Instrumentation Physics Laboratory, National Institute of Physics, University of the Philippines, Diliman, Quezon City, 1101, Philippines;2. Office of Research, Development, and Extension Services, FEATI University, Sta. Cruz, Manila, 1003, Philippines;3. Université Côte d’Azur, NICE Lab, IMREDD, 06100, Nice, France;4. Faculty of Education, University of the Philippines Open University, Los Baños, 4030, Laguna, Philippines;5. Department of Physical Sciences and Mathematics, College of Arts and Sciences, University of the Philippines, Manila, 1000, Philippines;1. Department of Mechanical Program, Hacettepe University, 06930, Ankara, Turkey;2. Faculty of Mechanical Engineering, Opole University of Technology, 76 Proszkowska St., 45-758 Opole, Poland;3. Advanced Manufacturing Laboratory, Institute of Infrastructure Technology, Research and Management, Ahmedabad 380026, India;4. Department of Mechanical Engineering, Sinop University, Sinop, Turkey |
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Abstract: | Machining of titanium at high cutting speeds such as from 4 m/s to 8 m/s is very challenging. In this paper, a new generation of driven rotary lathe tool was developed for high-speed machining of a titanium alloy, Ti–6Al–4V. The rotary tool was designed and fabricated based on the requirements of compact structure, sufficient stiffness and minimal edge runout. Cylindrical turning experiments were conducted using the driven rotary tool (DRT) and a stationary cutting tool with the same insert, for comparison in the high-speed machining of Ti–6Al–4V. The results showed that the DRT can significantly increase tool life. Increase in tool life of more than 60 times was achieved under certain conditions. The effects of the rotational speed of the insert were also investigated experimentally. Cutting forces were found to decline slightly with increase of the rotational speed. Tool wear appears to increase with the rotational speed in a certain speed range. |
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Keywords: | Titanium machining Driven rotary tool Cutting force Tool wear Tool life |
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