Development of roll formed & swept automobile bumper with AHSS

Lei Shi, Kun Zhang, Fei Han

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch


the bumper is one of the most important parts for vehicles, and the application of the advanced high strength steels (AHSS) is the most effective method to the lightweighting auto bodies. In this paper, the research of AHSS parts with roll forming and sweeping technology to develop the typical open symmetric section is performed. By finite element analysis (FEA) and simulation, the studies on the characteristics, and main force and power parameters of the AHSS roll forming process have been carried out for achieving the optimized process design. The historic process of longitudinal strain of symmetric section , and the mechanisms that cause the defects of sweeping, have been analyzed. The novel 3-station sweeping (curving) method has been disclosed. As the result, the study has provided the technical support for roll forming process in applications of AHSS.
Original languageEnglish
Title of host publicationAnnual Conference of the International Deep Drawing Research Group 2015
Place of PublicationChina
PublisherInternational Deep Drawing Research Group
Number of pages6
Publication statusPublished - 2015
Externally publishedYes
EventInternational Deep Drawing Research Group Conference 2015 - Shanghai, China
Duration: 31 May 20153 Jun 2015
Conference number: 34th


ConferenceInternational Deep Drawing Research Group Conference 2015
Abbreviated titleIDDRG 2015
Internet address


  • AHSS
  • Auto bumper
  • Roll forming
  • Sweeping defect control

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