Research on Oxidation Phenomenon During Titanium Machining and its Prevention
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Nagaoka University of Technology, Department of Mechanical Engineering, Nagaoka, Japan
Submission date: 2019-08-02
Acceptance date: 2019-10-02
Online publication date: 2020-06-24
Publication date: 2020-06-24
Journal of Machine Engineering 2020;20(2):77-85
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ABSTRACT
Over the last few decades, titanium alloys have become an important ingredient in many industrial sectors. In fact, titanium with additional characteristics, such as: high strength, heat resistance, low thermal conductivity, light weight and biocompatibility are being more and more used. However, the machining of titanium products tends to result in a thermal oxidation process and the development of a coloured layer. Therefore, a research regarding the thermal oxidation phenomena and its prevention was conducted. In this regard, cutting and grinding processes were experimentally investigated. Subsequently, L-ascorbic acid, a substance used against food oxidation, was used as an agent against oxidation during grinding. The main conclusions of the current study are the following; (1) Causes leading to the thermal oxidation during cutting and grinding were defined, (2) Prevention against oxidation was established by using L-ascorbic acid and strong alkaline water solution, (3) Optimum density of the solution with L-ascorbic acid and strong alkaline water was only 7.5 wt% for grinding.
PEER REVIEW INFORMATION
accepted
REFERENCES (16)
1.
NIINOMI M., 2004, Recenstrong alkaline waterplications, research and development in titanium and its alloys, Tetsu-to-hagane, 90/7, 462–471, (in Japanese).
2.
KOBAYASHI I., 2002, Titanium and its alloys as biomaterials, Material Japan, 41/8, 553–560, (in Japanese).
3.
HANAWA T., 2012, Biocompatibility of titanium-favorable properties, Journal of Japan Institute of Light Metals, 62/7, 85–290, (in Japanese).
4.
TANABE I., IYAMA T., AUNG L., M., KONDO R., 2010, High speed polishing for Large die and mold, Transactions of the Japan Society of Mechanical Engineers Series C, 76/772, 3822–3827, (in Japanese).
5.
TANABE I., KONDO T., INOUE Y., IYAMA T., 2011, High speed and fine polishing using linear motor, Transactions of the Japan Society of Mechanical Engineers Series C, 77/779, 2855–2862, (in Japanese).
6.
IYAMA T., TANABE I., 2011, Mirror-like finishing of soft materials using a polishing tool with controllable hardness by heat softening, Transactions of the Japan Society of Mechanical Engineers Series C, 77/775, 1154–1160, (in Japanese).
7.
MIYAGAWA O., WATANABE K., OKAWA S., NAKANO S., SHIOKAWA N., KOBAYASHI M., TAMURA H., 1990, Grinding of titanium part2 commercial vitrified wheels made of alumina abrasives, The Journal of the Japanese Society for Dental Materials and Devices, 9/1, 45–52, (in Japanese).
8.
SOE Y.H., TANABE I., IYAMA T., HOANG T.B., 2010, Tool technology to reduce cutting heat generation and Its Influences, Journal of Machine Engineering, 10/3, 5–16.
9.
SOE Y. H., TANABE I., IYAMA T., ABE Y., 2010, Control of tool temperature using neural network for machining material with low thermal conductivity, Journal of Machine Engineering, 10/3, 78–89.
10.
SHINADA M., TANABE I., SUGAI H., IYAMA T., 2007, Surface treatment regarding coloring of titanium using laser and its photocatalytic effects, Journal of Japan Institute of Light Metals, 73/726, 583–588, (in Japanese).
11.
TANABE I., IYAMA HOANG T. B.,IYAMA T., KRATZ E., 2008, Development of new electro deposited diamond tool and its compulsory cooling system for high speed grinding of titanium and nickel alloys, Transactions of the Japan Society of Mechanical Engineers Series C, 74/747, 2797–2802, (in Japanese).
12.
TANABE I., JUNIOR R.D.C., SAKAGUCHI N., KANEKO Y., 2013, Development of technology regarding soaking machine tool in strong alkaline water for reduction of CO2, Transactions of the Japan Society of Mechanical Engineers Series C, 79/797, 67–2862, (in Japanese).
13.
The Japan Society for Precision Engineering ed., 1992, Handbook of precision machining, Corona publishing co., ltd, 25, (in Japanese).
14.
SAWADA H., 2006, Creation of Functional Surface by Using Femto-Second Laser, The Japan Society for Precision Engineering, 72/8, 951–954.
15.
Junsei Chemical Co., LTD., 2001, Safety data sheets of L-ascorbic acid.
16.
HAYASI T., 1986, Chemistry of ascorbic acid and its utilization for foods, Journal of the Japanese Society for Food Science and Technology, 33/6, 456–462, (in Japanese).