Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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A study on the die structure for the improvement of the geometric accuracy in the single point sheet incremental forming process

판재 점진 성형 공정의 정밀도 향상을 위한 다이 구조 개선에 대한 연구

  • LEE, Won-Joon (Dept. of Mechanical System Design and Engineering, Seoul National University of Science and Technology) ;
  • KIM, Min-Seok (Dept. of Mechanical System Design and Engineering, Seoul National University of Science and Technology) ;
  • Seon, Min-Ho (Dept. of Mechanical System Design and Engineering, Seoul National University of Science and Technology) ;
  • YU, ․Jae-Hyeong (Dept. of Mechanical Information Engineering, Seoul National University of Science and Technology) ;
  • Lee, Chang-Whan (Dept. of Mechanical System Design and Engineering, Seoul National University of Science and Technology)
  • 이원준 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 김민석 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 선민호 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 유제형 (서울과학기술대학교 기계정보공학과) ;
  • 이창환 (서울과학기술대학교 기계시스템디자인공학과)
  • Received : 2022.06.17
  • Accepted : 2022.06.30
  • Published : 2022.06.30
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Abstract

Unlike other press forming processes, ISF (Incremental sheet forming) doesn't require a punch and die set. However, during the ISF processes unwanted bending deformation occurred around the target geometry. This paper is aimed to analyze the effect of the die structure, which is supported by bolts, on the geometric accuracy of the ISF processes. In this research, the ISF processes with Al5052 sheet of 0.5 mm, the tool diameter of 6 mm and the stepdown of 0.4 mm was employed. L-shaped, step-shaped, relief-shaped geometry were employed in experiments. Sectional view and the plastic strain were compared. From this research we find out that the bolt supported ISF processes increases the geometric accuracy of products very effectively.

Keywords

Acknowledgement

본 연구는 정부의 재원으로 한국연구재단(NRF)의 지원을 받아 수행되었습니다. (과제 번호: NRF-2020R1C1C1014412)

References

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