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A preliminary study on forming limit diagram and strain distribution of ASS 304

Author

Listed:
  • A. Anitha Lakshmi

    (Department of Mechanical Engineering, GRIET, Hyderabad, AP, India-500090)

  • Ch. Srinivasa Rao

    (Department of Mechanical Engineering, Andhra University, Visakhapatnam, AP, India-530003)

  • J. Gangadhar

    (Department of Mechanical Engineering, GRIET, Hyderabad, AP, India-500090)

  • Swadesh Kumar Singh

    (Department of Mechanical Engineering, GRIET, Hyderabad, AP, India-500090)

Abstract

Forming Limit Diagrams (FLDs) are constructed to describe the strain rates at which a highly localized zone of thinning or necking becomes visible in the surface of sheet metal. Austenitic Stainless Steel (ASS) 304 sheets are increasingly used for making different parts because of their high corrosion-resistivity, good appearance and superior formability. However, austenitic phase gets transformed into martensite during forming, revealing its highly unstable nature. This preliminary study investigates the formability and behavior of ASS 304 by plotting forming limit diagram, strain distribution, limiting dome height and forming ratio. It is shown that enhancement of formability is largest on the biaxial side of the FLD, because of the fraction martensite transformed depends on the thickness strain. The future work on formability of ASS 304 is also discussed.

Suggested Citation

  • A. Anitha Lakshmi & Ch. Srinivasa Rao & J. Gangadhar & Swadesh Kumar Singh, 2016. "A preliminary study on forming limit diagram and strain distribution of ASS 304," Journal of Advances in Technology and Engineering Research, A/Professor Akbar A. Khatibi, vol. 2(2), pages 52-58.
    • Handle: RePEc:apb:jaterr:2016:p:52-58
    DOI: 10.20474/jater-2.2.4
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