- 인발 선재의 잔류응력에 미치는 공정변수의 영향 및 잔류응력 완화
- ㆍ 저자명
- 이상곤,황원호,김병민,배철민,Lee. S. K.,Hwang. W. H.,Kim. B. M.,Bae. C. M.
- ㆍ 간행물명
- 소성가공
- ㆍ 권/호정보
- 2005년|14권 8호|pp.704-711 (8 pages)
- ㆍ 발행정보
- 한국소성가공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The influence of process parameters in drawn wire on residual stresses was investigated. Based on a FE-simulation of the wire drawing process, the effects of process parameters such as semi-die angle, reduction, friction coefficient and bearing length on the residual stresses were investigated. The validity of the FE-simulation results was verified by the comparison of the previous simulated results with experimental data. In this study, semi-die angle and die reduction have significant effect on the residual stresses at the surface of drawn wire. Several methods such as, addition of axial tension, application of skin pass, straightening in multi-roll straightener etc, were suggested in the previous studies to reduce the residual stresses. In this study, the results show that the concurrent application of skin pass with low die reduction and low semi-die angle at the final stage of drawing operation reduces dramatically the both axial and hoop residual stresses after drawing