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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Measurement of the Wear Amount of WC-coated Excavator Spacer using the PTA Process to Improve Wear Resistance by Using Reflective Digital Holography

반사형 디지털 홀로그래피를 이용한 내마모성 향상을 위한 공법이 적용된 PTA 굴착기의 초경 코팅 스페이서의 마모량 측정

  • Shin, Ju-Yeop (Dept. of Mechanical System & Automotive Engineering, Graduate School, Chosun UNIV.) ;
  • Lim, Hyeong-Jong (Dept. of Mechanical System & Automotive Engineering, Graduate School, Chosun UNIV.) ;
  • Lee, Hang-Seo (Dept. of Mechanical System & Automotive Engineering, Graduate School, Chosun UNIV.) ;
  • Kim, Han-Sub (Dept. of Mechanical System & Automotive Engineering, Graduate School, Chosun UNIV.) ;
  • Jung, Hyun-Chul (Dept. of Convergence Automotive Engineering, Graduate School of Industry Technology Convergence, Chosun UNIV.) ;
  • Kim, Kyeong-suk (Dept. of Mechanical System & Automotive Engineering, Chosun UNIV.)
  • 신주엽 (조선대학교 일반대학원 기계시스템미래자동차공학과) ;
  • 임형종 (조선대학교 일반대학원 기계시스템미래자동차공학과) ;
  • 이항서 (조선대학교 일반대학원 기계시스템미래자동차공학과) ;
  • 김한섭 (조선대학교 일반대학원 기계시스템미래자동차공학과) ;
  • 정현철 (조선대학교 산업기술융합대학원 융합자동차공학과) ;
  • 김경석 (조선대학교 기계시스템미래자동차공학부)
  • Received : 2019.10.04
  • Accepted : 2019.10.28
  • Published : 2020.01.31
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Abstract

The spacer, which is located between the bucket and the arm of an excavator, has a role in preventing damage to the excavator arm during excavation work. When the durability of the spacer is increased, the lifetime of the arm can be extended and the processing costs can be reduced. To increase the durability of the spacer, tungsten carbide (WC) coating was applied on the surface of a spacer using the plasma transferred arc (PTA) process. The confirm the durability, a wear test using a pin-on disk type of wear testing machine was done under the given conditions and the wear amount on the surface of a tested specimen was measured using reflective digital holography. The results were compared with that of ALPHA-STEP.

Keywords

References

  1. Gabor, D., "A New Microscopic Principle," Nature, 161, pp. 777-778, 1948. https://doi.org/10.1038/161777a0
  2. Schnars, U. and Jueptner, W., "Digital Holography," Springer Berlin Heidelberg, pp. 21-98, 1965.
  3. Cuche, E. Marquet, P. and Depeursinge, C., "Spatial Filtering for Zero-order and Twin-image Elimination in Digital Off-axis Holography," Applied Optics, Vol. 39, No. 23, pp. 4070-4075, 2000. https://doi.org/10.1364/AO.39.004070
  4. Yamaguchi, I. and Zhang, T., "Phase-shifting Digital Holography," Optics Letters, Vol. 22, No. 16, pp. 1268-1270, 1997. https://doi.org/10.1364/OL.22.001268
  5. Robinson, D. W. and Reid, G. T., "Interferogram Analysis, Digital Fringe Pattern Measurement Techniques," IOP Pub, pp. 99-113, 1993.
  6. Kim, M. K., Yu, L. and Mann, C. J., "Interference Techniques in Digital Holography," Journal of Optics A : Pure and Applied Optics, Vol. 8, No. 7, pp. 518-523, 2006. https://doi.org/10.1088/1464-4258/8/6/005
  7. Poon, T. C. and Liu, J. P., "Introduction to Modern Digital Holography with MATLAB," Cambridge University Press, pp. 118-124, 2014.
  8. Schanrs, U. and Juptner, W., "Direct recording of holograms by a CCD-target and Numerical Reconstruction," Applied Optics, Vol. 33, No. 2, pp. 179-181, 1994. https://doi.org/10.1364/AO.33.000179
  9. Schnars, U., "Direct Phase Determination in Hologram Interferometry with Use of Digitally Recorded Holograms," Jounal of the Optical Society of America A, Vol. 11, No. 7, pp. 2011-2015, 1994. https://doi.org/10.1364/JOSAA.11.002011
  10. Jeong, S. J. and Hong, C. K., "Pixel-size-maintained Image Reconstruction of Digital Holograms on Arbitrarily Tilted Planes by the Angular Spectrum Method," Applied Optics, Vol. 47, No. 16, pp. 3064-3071, 2008. https://doi.org/10.1364/AO.47.003064