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Ki, Hyungson
Laser Processing & Multiphysics Systems Laboratory
Research Interests
  • Laser materials processing
  • Laser material interaction


Investigation of cut quality in fiber laser cutting of CFRP

DC Field Value Language Oh, Sehyeok ko Lee, Inyong ko Park, Young-Bin ko Ki, Hyungson ko 2019-01-18T02:32:40Z - 2019-01-17 ko 2019-05 ko
dc.identifier.citation OPTICS AND LASER TECHNOLOGY, v.113, pp.129 - 140 ko
dc.identifier.issn 0030-3992 ko
dc.identifier.uri -
dc.description.abstract Fiber laser cutting of CFRP sheets was investigated using a 2 kW multi-mode fiber laser, focusing on how the cut quality factors, such as kerf width, kerf depth, matrix evaporation width, matrix recession width, kerf taper angle, matrix damage zone, and cut surface morphology, change as laser power, laser scanning speed, and the number of laser passes are varied. By designing a systematic experiment on a large process window, several important parameters for kerf width, kerf depth, matrix evaporation width, and matrix recession width were identified, and using them, it was verified that the beam scanning speed is a dominant factor for minimizing thermal damages. Also, circular rings were observed in each carbon fiber at the cut surfaces, and it looked as if they were generated when each fiber was thermally fused in the radial direction. A larger number of laser passes was found to contribute to a smooth surface morphology, because of the formation of highly-fused surfaces, which prevents fiber delamination and pull-outs. Optimum process conditions were also identified by comparing various cut quality factors. ko
dc.language 영어 ko
dc.publisher ELSEVIER SCI LTD ko
dc.title Investigation of cut quality in fiber laser cutting of CFRP ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85059156719 ko
dc.identifier.wosid 000459643200019 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.optlastec.2018.12.018 ko
dc.identifier.url ko
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