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

  • 제15권3호
  • /
  • Pages.72-78
  • /
  • 2016
  • /
  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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자주포 궤도 너트에 미치는 우발적 수소취성 현상의 영향

Analysis of the Accidental Hydrogen Embrittlement Affecting the Track Nut of Self-Propelled Howitzer

  • 투고 : 2016.03.08
  • 심사 : 2016.04.12
  • 발행 : 2016.06.30
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초록

In this study, we analyzed the accidental hydrogen embrittlement affecting the track nut on a self-propelled howitzer. Tracks are key components to maintain a high degree of confidence in the operation of the self-propelled howitzer and the safety of the crew. This study analyzed the fractured surface using SEM to review accidental damage of the wedge nut. In addition, we conducted revival tests and analyzed the results to identify the cause of the wedge nut damage from hydrogen embrittlement. We should carry out factor analysis and continuous improvement of the manufacturing process to determine the accidental breakage mechanism for future enhancement of the self-propelled howitzer. This study will be the useful reference for enhancing process designs in similar products.

키워드

과제정보

연구 과제번호 : 품질경영

연구 과제 주관 기관 : 국방기술품질원

참고문헌

  1. LS Mtron, Report of Track Nut Failure Analysis for The Track Nut of Self-Propelled Howitzer, pp.1-15, 2015.
  2. Kim, Y. S., Jeong Y. M., and Im, G. S., "Review on Delayed Hydride Cracking and Stress Corrosion Cracking of Metals", Transactions of the Korean Hydrogen and Energy Society, Vol. 15, No. 4 pp. 266-273, 2004.
  3. Kim, B. H., Seo, J. H., Gil, H. J., Kim, S. H., and Seo, S. C., "A Study on the Nondestructive Test Optimum Design for a Ground Tracked Combat Vehicle", Journal of the Korean Society for Nondestructive Testing, Vol. 35, No. 5 pp. 358-366, 2015. https://doi.org/10.7779/JKSNT.2015.35.5.358
  4. Cho, J. U. and Han, M. S., "Study on Fracture at Material under Dynamic Load", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 7, No. 2 pp. 16-22, 2008.
  5. Park, K. D. and Ryu, H. J., "A Study on Corrosion Fatigue Characteristics Based on Welding Methods of Structural Steel", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 5, No. 3 pp. 58-64, 2006.