한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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티타늄 황삭가공에 있어서 공구형상이 공구마모율에 미치는 영향에 관한 연구

A Study on Effect of Tool Wear Rate upon Cutting Tool Shape in a Titanium Rough Cut Machining

  • 정화 (한국폴리텍대학 항공캠퍼스 항공기계과)
  • Jung, Hwa (Department of Aeronautical Engineering, Aviation Campus of Korea Polytechnics)
  • 투고 : 2019.07.22
  • 심사 : 2019.08.13
  • 발행 : 2019.10.30
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초록

The aviation industry has grown beyond the simple processing and assembling of aircraft parts and now designs and exports finished aircraft. In this study, the vertical CNC milling rotational speed and feed rate were parameters to investigate the life of tools according to their shape: (flat, round, and ball end mill) in the rough cutting of titanium. These tools are widely used in aircraft manufacturing and assembly. The purpose of this study is to measure the cutting temperature generated during the cutting process and calculate the rate of tool wear. This will be accomplished by measuring the tool weight before and after cutting the specimen and to compare it with the results of previous studies. Our study showed that the maximum cutting temperature increased as cutting time, tool rotational speed, and feed rate increased. The highest cutting temperatures were recorded for the ball, round, and flat end mill, respectively. Tool wear for the ball, round, and flat end mill increased as the speed and feed rate increased. The flat end mill exhibited the highest rate of wear from a minimum of 0.62% to a maximum of 2.88%.

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참고문헌

  1. Bae, M. W, Park, H. Y and Jung, H., "Study on Wear Characteristics of Cutting Tools in a Titanium Roughing Cut Machining," Transactions of the KSAE, Vol.24, No.1, pp.67-73, 2016. https://doi.org/10.7467/KSAE.2016.24.1.067
  2. Park, H. Y., Bae, M. W., Jung, H., Kang, M. S., "Effect of Cooling Method on Surface Roughness in High-speed Machining," 2010 KSAE Annual Conference and Exhibition, pp.2679-2684, 2010.
  3. Park, H. Y., Bae, M. W. and Jung, H., "Effect of Cutting Depth on Surface Roughness of Al Alloy 7075 in High-speed Machining," 2011 KSAE Annual Conference and Exhibition, pp.2442-2446, 2011.
  4. Bae, M. W., Park, H. Y. and Jung, H., "A Study on the Optimal Cutting Depth upon Surface Roughness of Al Alloy 7075 in High-speed Machining," Transactions of the KSAE, Vol.21, No.5, pp.74-81, 2013.