Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2002.02a
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- Pages.225-230
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- 2002
Effect of Die and Lubrication in Fine Wire Cold Hydrostatic Extrusion
극세선 냉간 정수압 압출에서 금형과 윤활의 영향
- Na K. H. ;
- Park H. J. ;
- Kim S. S. ;
- Yoon D. J. ;
- Choi T. H. ;
- Kim E. Z.
- 나경환 (한국생산기술연구원 마이크로성형팀) ;
- 박훈재 (한국생산기술연구원 마이크로성형팀) ;
- 김승수 (한국생산기술연구원 마이크로성형팀) ;
- 윤덕재 (한국생산기술연구원 마이크로성형팀) ;
- 최태훈 (한국생산기술연구원 마이크로성형팀) ;
- 김응주 (한국생산기술연구원 마이크로성형팀)
- Published : 2002.02.01
Abstract
As in most metal forming processes, die and lubrication are of vital importance in hydrostatic extrusion. An efficient die design and lubrication system selection reduce the pressure required for a given reduction ratio by lowering friction at the billet-die interface. In contrast to the conventional macroscopic extrusion, fine-wire fabrication requires higher extrusion pressure and effect of friction is much more significant. Forming fine Au, Ag, and Cu wire with hydrostatic extrusion process in cold condition, the effect of extrusion die angle, lubrication and billet's initial diameter was studied.