발간논문

Home > KJMM 논문 > 발간논문

Vol.39, No.12, 1461 ~ 1468, 2001
Title
Materials Processing : Striation Formation and Kerf Width Variation in Thin Stainless Steel Tube during Pulsed Nd : YAG Laser Cutting Process by Numerical Simulation
김병철Byoung Cheol Kim,김도훈To Hoon Kim
Abstract
The formation of a striation pattern and the variation of kerf width in a thin stainless steel tube were investigated by numerical simulation during a pulsed Nd:YAG laser cutting process. The simulated results were compared with the experimental results, which were performed under the same conditions for simulation. The simulated results showed good agreement with the experimental results. Although the formation of the striation pattern was influenced by various laser parameters, the laser power density had come out the most important factor in the formation of striation patterns. Since a high power density resulted in clear regular striation patterns, relatively low energy density caused the formation of a hot spot, which hindered the formation of regular striation patterns and caused less striation. The kerf width is increased with decreasing the power density and the hot spot is generated in the bottom of tube section in the case of low energy density condition. The numerical simulation calculations can be used to predict the shape of striation patterns and to offer a way to provide a smooth cut wall.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.