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The effect of cryogenic cooling and minimum quantity lubrication on end milling of titanium alloy Ti-6Al-4V

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Abstract

The cooling down of cutting temperature in machining is very important for the improvement of tool life, especially when dealing with work materials that have low thermal conductivity such as titanium alloy. In this study designed to investigate the machining performance of a variety of cooling methods, cryogenic, Minimum quantity lubrication (MQL), and flood cooling are performed on solid end milling of titanium alloy, Ti-6Al-4V. In particular, the effect of internal and external spray methods on cryogenic machining is analyzed with a specially designed liquid nitrogen spraying system by evaluating tool wear and cutting force at cutting conditions. The cutting force is also analyzed for tool breakage detection. As a result, the combination of MQL and internal cryogenic cooling improves tool life by up to 32% compared to conventional cooling methods. The cutting force is also reduced significantly by this combination of cooling and lubrication strategy of side end milling.

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Authors and Affiliations

  1. Manufacturing System R&D Division, Korea Institute of Industrial Technology, Cheonan-si, 330-825, Korea

    Kyung-Hee Park, Gi-Dong Yang, Dong Yoon Lee, Tae-Gon Kim & Seok-Woo Lee

  2. Department of Materials, Manufacturing and Industrial Engineering, Universiti Teknologi Malaysia, 81200, Johor Bahru, Malaysia

    M. A. Suhaimi

  3. Department of Industrial and Information Systems Engineering, Chonbuk National University, Jeonju, 561-756, Korea

    Dong-Won Kim

Authors
  1. Kyung-Hee Park
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  2. Gi-Dong Yang
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  3. M. A. Suhaimi
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  4. Dong Yoon Lee
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  5. Tae-Gon Kim
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  6. Dong-Won Kim
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  7. Seok-Woo Lee
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Correspondence to Kyung-Hee Park.

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Recommended by Guest Editor Sangho Park

Kyung-Hee Park received B.S. degree in mechanical engineering from Kook Min University, Korea, in 2003. He received his Ph.D. degree from Michigan State University, USA, in 2010. He is currently a senior researcher at Korea Institute of Industrial Technology. His research interests are machining process, machining monitoring and tool wear analysis especially for difficult-to-cut materials.

Gi-Dong Yang received B.S and M.S. degrees in mechanical engineering from Kong Ju National University, Korea, in 2011 and 2013, respectively. He is currently a researcher at Korea Institute of Industrial Technology. His research interest is the tool wear analysis in machining processes.

M. A. Suhaimi received B.S. degree in mechanical engineering (manufacturing) from Universiti Teknologi Malaysia, Malaysia, in 2009. He is currently a Ph.D. candidate at Chonbuk National University, Korea and serves as a parttime researcher at Korea Institute of Industrial Technology. His research interests are tool wear monitoring system and adaptive selflearning control system.

Seok-Woo Lee received B.S., M.S. and Ph.D. degrees in mechanical engineering from Pusan National University, Korea, in 1989, 1991 and 2001, respectively. He is currently a principal researcher at Korea Institute of Industrial Technology. His research interests are machining process, machining of advanced materials (Titanium, CFRP and Inconel alloy) and micro-machining.

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Park, KH., Yang, GD., Suhaimi, M.A. et al. The effect of cryogenic cooling and minimum quantity lubrication on end milling of titanium alloy Ti-6Al-4V. J Mech Sci Technol 29, 5121–5126 (2015). https://doi.org/10.1007/s12206-015-1110-1

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  • DOI: https://doi.org/10.1007/s12206-015-1110-1

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