롤 포밍 공정에서 컷팅 펀치 인선 각도가 제품 절단에 미치는 영향에 관한 연구

A Study on the Effects of Products Section by Cutting Punch's Edge Angle during Roll Forming Process

  • 정문수 (공주대학교 금형공학과) ;
  • 김세환 (공주대학교 금형공학과) ;
  • 이춘규 (유한대학교 금형설계과)
  • Cheong, Mun-Su (Department of Mold & Die Engineering, Kongju National University) ;
  • Kim, Sei-Whan (Department of Mold & Die Engineering, Kongju National University) ;
  • Lee, Chun-Kyu (Department of Metal Die Design Engineering, Yuhan College)
  • 투고 : 2016.05.13
  • 심사 : 2016.06.03
  • 발행 : 2016.06.07

초록

The roll forming produces mass products using the continuous production process. Also we need the process that continuous long material or goods cutting into a desired length. Our study uses 3-D driving cutter and roll forming material as SPCC to investigate this. When we cut the material using the process of roll forming, the shear resistance is raised at the cutting punch's edge. The result is remained the trouble about burr and progressive deformation on the material. This study shows the method minimizing the above trouble. The material of punch was considering heat generated on the continuous production process. So we used the type of STD 61 for the material of punch and had the vacuum heat treatment for the surface hardness of HRC 53. The structure of the mold is designed with forming a double cam die at the upper punch and the both sides of central core. We conducted the experiment three times. In the result when had to make V-groove within the angle between 105 and 110 on the punch front end, we could get the minimum shear resistance on the punch front end. Also with the same condition we minimizes the material jams in the continuous production process.

키워드

참고문헌

  1. 정동원, "롤포밍 공정을 이용한 고장력강 재질의 범퍼보강 차체판넬 개발에 관한 연구", 한국기계가공학회 춘추계학술대회 논문집, Vol. 2011, No. 11, p. 33, 2011.
  2. 류빈희, "롤 포밍 금형의 5-축 가공에 관한연구", 경일대, 석사학위논문, 2014.
  3. 권순철, "자동차용 채널의 롤 성형 공정에 관한 연구", 울산대, 석사학위논문, 2009.
  4. 김세환, "프레스금형 설계공학", 대광서림, pp. 79-83, 2012.
  5. 자동차 용어사전 편찬회, 자동차 용어사전, 일진사, 2012.