- 고주파 유도가열을 이용한 열간 파이프 벤딩 공정 설계
- ㆍ 저자명
- 류경희,이동주,김동진,김병민,김광호,Ryu. Gyeong-Hui,Lee. Dong-Ju,Kim. Dong-Jin,Kim. Byeong-Min,Kim. Gwang-Ho
- ㆍ 간행물명
- 한국정밀공학회지
- ㆍ 권/호정보
- 2001년|18권 9호|pp.110-121 (12 pages)
- ㆍ 발행정보
- 한국정밀공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
During hot pipe bending using induction heating, the wall of bending outside is thinned by tensile stress. In design requirement, the reduction of wall thickness is not allowed to exceed 12.5%. So in this study, two methods of bending, one is loading of reverse moment and the other is loading of temperature gradient, have been investigated to design pipe bending process that satisfy design requirements. For this purpose, finite element analysis with a bending radius 2Do(outer diameter of pipe) has been performed to calculate proper reverse moment and temperature gradient to be applied. Induction heating process has been analyzed to estimate influence of heating process parameters on heating characteristic by finite difference method. Then pipe bending experiments have been performed for verification of finite element and finite difference analysis results. Experimental results are in good agreement with the results of simulations.