Design & Manufacturing

  • 제11권1호
  • /
  • Pages.26-29
  • /
  • 2017
  • /
  • 2800-0323(pISSN)
  • /
  • 2733-452X(eISSN)
한국금형공학회 (Korean Society of Die & Mold Engineering)
권호 표지

전단 가공에서 제품 전단면의 크기에 변화에 관한 연구

A study on the size of product shear surface in shearing process

  • 손종민 (공주대학교 금형공학과) ;
  • 이희주 (공주대학교 금형공학과) ;
  • 조기흠 (공주대학교 금형공학과) ;
  • 신성은 (공주대학교 금형공학과) ;
  • 김세환 (공주대학교 금형공학과) ;
  • 이춘규 (한국폴리텍VII대학 창원캠퍼스 금형디자인과)
  • Son, Jong-Min (Department of Mold & Die Engineering, KongJu National University) ;
  • Lee, Hui-Ju (Department of Mold & Die Engineering, KongJu National University) ;
  • Cho, Gi-Heum (Department of Mold & Die Engineering, KongJu National University) ;
  • Shin, Seong-Eun (Department of Mold & Die Engineering, KongJu National University) ;
  • Kim, Sei-Whan (Department of Mold & Die Engineering, KongJu National University) ;
  • Lee, Chun-Kyu (Changwon Campus of Korea Polytechnic VII Dept. of Die & Mold Design)
  • 투고 : 2016.12.05
  • 심사 : 2017.03.24
  • 발행 : 2017.03.31
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초록

Burrs generated during shear forming such as notching and piercing may cause lifting during product assembly, which may deteriorate the productivity and quality of products. In this study, various shear angles and variable clearances between the punch and the die were applied in experimental notching tests to investigate the shear fracture surface and the burr height due to various conditions. The experimental results show that the clearance has the greatest effect on shear and fracture surfaces. It is considered that the height of the shear section increases slightly as the shear angle increases.

키워드

참고문헌

  1. Y.S. Shin, "A Study on The Burr Formation in Sheet Metal Shearing", pp. 166-171, 2002.
  2. T. C. Lee L. C. Chan and P. F. Zheng, "Application of the fnite-element deformation method in the fine blanking process", Journal of Materials Processing Technology 63, pp.744-749, 1997. https://doi.org/10.1016/S0924-0136(96)02717-3