Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Research on Improved Formability of High-Strength Steel Mounting Brackets and Springback Prediction

고강도강 마운팅브라켓의 성형성 향상 및 스프링백 예측에 관한 연구

  • 임규성 (한국폴리텍대학) ;
  • 최성대 (금오공과대학교 기계시스템공학과)
  • Received : 2021.11.21
  • Accepted : 2022.02.28
  • Published : 2022.04.30
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Abstract

To reduce the weight of the car and ensure the safety of the driver while driving, the existing 440 MPa-class mounting bracket was treated at 590MPa to improve collision safety and secure the weight of the vehicle body. The following conclusions were drawn from the tensile test, forming analysis, and springback prediction. In the formability and springback analyses using FLD, it could be confirmed that bending was an essential process because the formability and flatness were much better when bending was added than when bending was not applied. Based on the research results, it was deduced that the mold design was necessary so that the molding was carried out at a strain rate of 20% or less for stable molding.

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Acknowledgement

본 연구는 금오공과대학교 2021년 교내 학술 연구비 지원에 의한 것입니다.

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