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차량용 피스톤로드의 열처리경도에 따른 초음파특성 평가

Evaluation of Ultrasonic Characterization of Hardness after Heat Treatment of Piston Rods for Use of Vehicles

  • Im, K.H. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Back, C.G. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Jong, O.S. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Hwang, Y.H. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Jong, O.S. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Kwon, S.H. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Kim, H.G. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Lee, H.H. (Research Center, Teasan ENG) ;
  • Woo, Y.D. (Dept. of Mechanical and Automotive Eng., Woosuk University) ;
  • Zhang, G.L. (Research Center, HiMC, Co. Ltd.) ;
  • Jung, J.A. (Dept. of Mechanical and Automotive Engineering, Songwon University)
  • 투고 : 2013.10.13
  • 심사 : 2013.12.23
  • 발행 : 2014.02.15

초록

Many techniques are available for destructive and nondestructive measurement of mechanical hardness. The ultrasonic method could be widely applicable as a nondestructive technique. Many studies have examined how changes in the mechanical hardness affect the longitudinal velocity of ultrasonic waves. This approach aims to estimate the overall velocity variations in specimens. However, proper nondestructive examination techniques are needed as effective tools for analyzing the effects of heat treatment on the surface of the specimens. Therefore, in this study, the effect on the hardness of piston rods was nondestructively measured using surface ultrasonic waves. The hardness after heat treatment was investigated at various depths in the specimens, and the velocity of the surface ultrasonic waves was measured with respect to the hardness of the piston rods. In addition, finite element method simulations were performed to confirm the behavior of the waves.

키워드

참고문헌

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피인용 문헌

  1. NDE Characterization on the Heat Treatment in Piston Rods for a Use of Shock Absorbers Using a Simple Automatic Ultrasonic System vol.29, pp.2, 2020, https://doi.org/10.7735/ksmte.2020.29.2.98