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http://dx.doi.org/10.5228/KSTP.2011.20.8.568

Formability Evaluation of Tailor Welded Blanks of Boron Steel Sheets by Erichsen Cupping Test at Elevated Temperature  

Kim, Y.I. (한국기계연구원 부설 재료연구소 변형제어연구그룹)
Kim, J.H. (한국기계연구원 부설 재료연구소 변형제어연구그룹)
Kim, Y. (고등기술원 로봇생산기술센터)
Lee, M.Y. (성우하이텍 기술연구소)
Moon, Y.H. (부산대학교 기계공학과)
Kim, D. (한국기계연구원 부설 재료연구소 변형제어연구그룹)
Publication Information
Transactions of Materials Processing / v.20, no.8, 2011 , pp. 568-574 More about this Journal
Abstract
The combination of tailor welded blank (TWB) and hot stamping often offers improved crash-worthiness and reduced mass of stamped parts in the automobile body. To investigate the formability of laser TWB and the reliability of weld line, the present study used 22MnB5 boron steel sheet of the same thickness and used the Erichsen cupping test at elevated temperatures. The effects of laser direction, die temperature, weld line positions and forming speed on formability(the limiting dome height) were studied and the results were compared with the formability of the base material.
Keywords
Tailor Welded Blank; Hot Stamping; Boron Steel Sheet; Erichsen Cupping Test; Formability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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