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브레이징 접합부의 강도평가 및 고장분석

An Analysis for Failure Mechanisms and Strength Evaluation on Brazed Joint


The present paper is aiming at the evaluation for failure mechanisms and static strength of brazed joints used in household electronics. For these purposes, the failure analysis was performed on the various brazed joints, through the bursting, the micro-Victors hardness tests and 3-dimensional X-ray technique. The failure modes of brazed joints were classified into two different types, based on the results of bursting pressure test by means of self-designed internal-pressure testing machine. Their failure mechanism was dependent on the relationship between heat effect occurred in manufacturing process and internal flaws such as incomplete penetration and pin hole. Also, a finite element analysis was performed to evaluate the stress distribution with respect to the heat and the internal flaws.

참고문헌 (12)

  1. Schwartz M., 1995, Engineering Technologist, London, pp. 1-51 
  2. Chung- Yun Kang, 2000, 'Brazing Defect,' Journal of Korean Welding Society, Vol. 18, No. 6, pp. 672-674 
  3. MandaI S., Ray A. K. and Ray A. K., 2004, 'Correlation between the Mechanical Properties and Microstructual Behavior of Al2O3-(Ag-Cu-Ti) Brazed Joints,' Mechanical Science and Engineering, A, Vol. 383, No.2, pp. 235-244 
  4. He P., Feng J. C. and Zhou H., 2004, 'Microstructure and Strength of Brazed Joints of Ti3AI-Base Alloy with NiCrSiB,' Materials Characterization, Vol. 52, No. 4-5, pp. 309-318 
  5. Shaohong Wang, Heping Zhou and Yuping Kang, 2003, 'The Influence of Rare Earth Elements on Microstructures and Properties of 6061 Aluminum Alloy Vacuum-Brazed Joints,' Journal of Alloys and Compounds, Vol. 352, No. 1-2, pp. 79-83 
  6. Jong-Bum Lee and Jei-lip Cho, 2000, 'The Study on the High Acceleration Life Method for the Automotive Electric and Electronic Parts,' Journal of the Korean Society for Quality Management, Vol. 28, No.4, pp. 16-28 
  7. Hendrik Schabe and Beinard Vietrl, 1995, 'An Axiomatic Approach to Modes of Accelerated Life Testing,' Engineering Fracture Mechanics, Vol. 50, No.2, pp. 203-217 
  8. AWSC 3.2, 2001, Standard Method for Evaluating The Strength of Brazed Joints 
  9. ASTM E 8M, 2004, Standard Test Methods for Tension Testing of Metallic Materials 
  10. Bum-Seok Shan, Byung-Jei Lee, Hee-Jin Shim, Ki-Weon Kang, Kyung-Young Jhang and Jung-Kyu Kim, 2006, 'Evaluation for Failure Mechanism and Fatigue Strength of Brazed Joints,' Korean Society of Mechanical Engieers-Reliability Session, Proceeding of Spring Annual Meeting, pp. 7-12 
  11. MSC.PATRAN, 2003, User's Guide, MacNeal - Schwendler Corporation 
  12. MSC.NASTRAN, 2003, User's Guide, MacNeal - Schwendler Corporation 

이 논문을 인용한 문헌 (2)

  1. Kim, Seon-Jin ; Kong, Yu-Sik ; Lee, Sang-Yeal 2009. "Weibull Statistical Analysis of Micro-Vickers Hardness using Monte-Carlo Simulation" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 33(4): 346~352 
  2. Kong, Yu-Sik ; Yun, Seong-Pil ; Kim, Seon-Jin 2010. "Mechanical Properties of Friction Welded SM 45C-SF 45 Joints for Automobile Reverse Idle Gear Shaft Applications" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 34(1): 85~90 


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