Journal of the Korean Society of Safety (한국안전학회지)
- Volume 16 Issue 3
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- Pages.135-142
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- 2001
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- 1738-3803(pISSN)
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- 2383-9953(eISSN)
Frequency Spectrum and re Correlation with Cutting Mechanisms in Orthogonal Cutting of Glass Fiber Reinforced Plastics
GFRP의 2차원 절삭에서 주파수 스펙트럼과 절삭메카니즘과의 상호연관성에 관한 연구
- Gi-Heung Choi (Department of Mechanical Systems Engineering, Hanyang University)
- Published : 2001.09.01
Abstract
This study discusses frequency analysis based on the frequency spectrum and process characterization in orthogonal cutting of Fiber-matrix composite materials. A sparsely distributed idealized composite material, namely a glass reinforced polyester(GFRP) was used as workpiece The present method employs a force sensor and the signals from the sensor are processed using the fast Fourier transform(FFT) technique. The experimental correlations between the different chip formation mechanisms and power spectrum me established. Effects of fiber orientation, cutting parameters and tool geometry on the cutting mechanisms me also discussed.
본 연구에서는 복합소재인 GFRP(Glass Fiber Reinforced Polyester)의 2차원 절삭공정에서 주파수 스팩트럼과 절삭 메커니즘과의 연관성에 관하여 논의한다. 해석방법으로는, 공정중 발생하는 절삭력 신호를 FFT에 의해 주파수 분석하고 주파수 스팩트럼과 다양한 칩형성 메커니즘과의 연관관계를 모델링한다. 특히, 섬유경사각(Fiber orientation angle), 절삭변수 그리고 공구형상이 절삭 메커니즘에 미치는 영향을 평가하였다.