The effects of laser-assisted heat treatment on warm formability of dual-phase materials

Karaağaç İ., Kabakçi M. O., Başdoğan Z.

IRONMAKING AND STEELMAKING, cilt.1, ss.1-7, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1080/03019233.2023.2169222
  • Dergi Adı: IRONMAKING AND STEELMAKING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1-7
  • Anahtar Kelimeler: Laser-assisted forming, laser-assisted heat treatment, laser-assisted heating, DP800
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, the effects of local heat treatment using a low-power laser on the bending formability ofDP800 sheet material were experimentally investigated. In thefirst step of the study, only the punchcontact bending region of sheet metal was locally heated with a constant feed rate (1 mm s−1) and atdifferent laser powers (50, 75, and 100% Watt). In the next step, the sheet material was transferred tothe bending die for bending without any cooling process, and into the last stage, the sheet materialwas formed in different angled V-bending dies (30°, 60°, and 90°). It was observed that in heating upto 75-W power, the hardness decreased to 237 HV due to the dissolution of the martensite in themicrostructure of DP material, and the springback value decreased by 39.285% due to thedecrease in hardness.