- 레이저에 의해 패터닝 된 바늘과 탄성중합체와의 마찰 효과
- ㆍ 저자명
- 김재구,노승국,박종권,조성학,황경현,Kim. Jae-Gu,Ro. Seung-Kook,Park. Jong-Kweon,Cho. Sung-Hak,Whang. Kyung-Hyun
- ㆍ 간행물명
- 한국레이저가공학회지
- ㆍ 권/호정보
- 2012년|15권 3호|pp.1-6 (6 pages)
- ㆍ 발행정보
- 한국레이저가공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The friction force of patterned needle in elastomer have been investigated to verify the application for bio and plastic industry. The micro pattern on the needle surface were prepared by 266 nm, 20 ns laser and 800 nm, 220 fs laser, which were able to generate the different surface roughness. The friction force was measured by the load cell of 10 N capacity. As the results, the friction force of no patterned needle is almost constant during the needle penetrates the silicone rubber sample. However, the needle having asperities shows the variation of the friction force. The higher the surface roughness is, the smaller the friction force is until the surface roughness is very high. In our experiment conditions, the reduction of the friction force by 20 % compared to no pattern needle was achieved with straight and $50{mu}m$ discrete line generated by 266 nm, 20 ns laser.