Journal of Welding and Joining

  • 제25권2호
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  • Pages.55-61
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  • 2007
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
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590MPa급 고강도강 플래시버트 용접이음부의 기계적특성

Mechanical Properties of the Flash Butt Welded Joint of 590MPa High Strength Steel

  • 발행 : 2007.04.30
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초록

Flash butt weldability of 590MPa dual phase steel is carried out under micro metallographical examination and macro mechanical property tests. The objective of present study is to investigate the cause that brings on bond line fracture, and is to improve mechanical properties of the flash butt welded joint. The joint of flash butt welding has a superior tensile property, but has bad formability due to oxide formed at bond interface. The HAZ softening in the weld joint does not show. It was found that mechanical properties were increased with optimizing welding parameters and making application of oil dripping and post-weld heat treatment.

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참고문헌

  1. K. Ando, S. Nakata and T. Sugimoto : Study on the Flash Welding Phenomena of Steels(2nd Report)- Observation by High Speed Motion Pictures-, Journal of JWS, 40-1 (1971), 35-53 (in Japanese)
  2. K. Ando, S. Nakata and T. Sugimoto : Study on the Flash Welding Phenomena of Steels(3rd Report)-On the Upsetting Process-, Journal of JWS, 40-2 (1971), 137-151 (in Japanese)
  3. K. Ando, S. Nakata and Y. Nishida : Dispersion Mechanism of Oxide Inclusion at the Interface of Specimens in Upset Butt Welding, Journal of JWS, 40-11 (1971), 1140-1148 (in Japanese)
  4. K. Kunishige, N. Yamaguchi, T. Taka and N. Nagao : SAE Tech. Pap. 830632. PA, USA (1983)
  5. B. K. Jha, N. S. Mishira and V. Ramaswamy : Steel India, 6(1983), No.2, 114
  6. M. Mizui, S. Soneda, T. Sekine, T. Herat, M. Ejima and T. Sato : Nippon Steel Tech. Rep., (June 1984), No.23, 19
  7. B. K. Jha, Ram Avtar, V.S Dwivedi and V. Ramaswamy : Proc. Oof Int. Conf. Welding Tech. in Developing Contries – Present Status and Future Needs, Univ. of Roorkee, India (1988), III-199
  8. P.K. Ghosh, P.C. Gupta, Ram Avtar and B.K. Jha : Proc. Oof Int. Conf. Welding Tech. in Developing Contries – Present Status and Future Needs, Univ. of Roorkee, India (1988), II-53
  9. P.C. Gupta and P.K. Ghosh : Weldability of Dual Phase Steel Produced by Steel Authority of India Ltd., Project Report, Welding Research Lab., Dept. of Mech. & Industr. Eng., Univ. of Roorkee, India (1988)
  10. J. Za'k：The Origin of Light Area in Upset Welds of Rolled Carbon Steel, Welding Journal, Vol.51 (1972), No.3, 272s-279s
  11. J.C. Barrett : Flash Welding of Alloy Steels – Physical and Metallurgical Characteristics, Welding Journal, Vol.24 (1945), No.1, 25s-45s
  12. JS P 1987-275581