Laser Solutions (한국레이저가공학회지)
- Volume 15 Issue 3
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- Pages.1-6
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- 2012
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- 1229-0963(pISSN)
Investigation of friction effects between needles patterned using laser and elastomer
레이저에 의해 패터닝 된 바늘과 탄성중합체와의 마찰 효과
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Kim, Jae-Gu
(Nano-Convergence Mechanical Systems Research Division) ;
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Ro, Seung-Kook
(Advanced Manufacturing Systems Research Division) ;
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Park, Jong-Kweon
(Advanced Manufacturing Systems Research Division) ;
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Cho, Sung-Hak
(Nano-Convergence Mechanical Systems Research Division) ;
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Whang, Kyung-Hyun
(Nano-Convergence Mechanical Systems Research Division)
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김재구
(한국기계연구원 나노융합기계연구본부) ;
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노승국
(한국기계연구원 첨단생산장비연구본부) ;
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박종권
(한국기계연구원 첨단생산장비연구본부) ;
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조성학
(한국기계연구원 나노융합기계연구본부) ;
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황경현
(한국기계연구원 나노융합기계연구본부)
- Received : 2012.07.09
- Accepted : 2012.09.21
- Published : 2012.09.30
Abstract
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