- 판재의 드로우비드 성형시 비드표면처리와 비드형상이 인출 및 마찰특성에 미치는 효과
- ㆍ 저자명
- 이동활,류종수,정우창,문영훈,Lee. Dong-Hwal,Ryu. Jong-Soo,Chung. Woo-Chang,Moon. Young-Hoon
- ㆍ 간행물명
- 열처리공학회지
- ㆍ 권/호정보
- 2005년|18권 2호|pp.105-111 (7 pages)
- ㆍ 발행정보
- 한국열처리공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In sheet metal forming, drawbeads are often used to control uneven material flow, which may cause defects such as wrinkles, fractures, surface distortion and springback. Appropriate setting and adjusting of the drawbead force is one of the most important parameters in sheet forming process control. Therefore in this study, drawbead test was performed at various bead surface treatment conditions to clarify the frictional characteristics between sheet and drawbead. Furthermore, the differences in drawing force between circular and rectangular shape beads have also been measured to estimate the effectiveness of bead shape on the material flow control. The results show that drawing and friction characteristic were strongly influenced by surface treatments of bead and bead shapes.