Analysis and prediction of laser cutting parameters of fibre reinforced plastics (FRP) composite materials

Citation
Aa. Cenna et P. Mathew, Analysis and prediction of laser cutting parameters of fibre reinforced plastics (FRP) composite materials, INT J MACH, 42(1), 2002, pp. 105-113
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
ISSN journal
0890-6955 → ACNP
Volume
42
Issue
1
Year of publication
2002
Pages
105 - 113
Database
ISI
SICI code
0890-6955(200201)42:1<105:AAPOLC>2.0.ZU;2-I
Abstract
A theoretical model is presented considering the spatial distribution of th e laser beam, interaction time between the laser and the work material, abs orption coefficient of the laser beam at the laser wavelength and the therm al properties of the material. It is assumed that the laser energy is absor bed through the entire thickness of the material. The developed model predi cts the various parameters in laser cutting of composite materials such as kerf width at the entry and at the exit, material removal rate and energy t ransmitted through the cut kerf. The theoretical analysis also determines t he position of the beam with respect to the cutting front. Experiments for different laser and material combinations to evaluate the effects of cuttin g parameters on the cut quality were carried out to compare with the predic ted results. The results obtained show very good agreement. (C) 2001 Elsevi er Science Ltd. All rights reserved.