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HAZ Extent Analysis in Fiber-Reinforced Plastic Grooving by Laser | ||
| Iraqi Journal of Applied Physics | ||
| Article 1, Volume 1, Issue 1, 2005, Pages 1-7 | ||
| Author | ||
| O.A. Hamadi | ||
| Abstract | ||
| In this investigation, the anisotropic extent of HAZ in laser grooving of fiber-reinforced plastic was studied by constructing an analytical model then comparing results obtained with the experimental. A principle of three main components of anisotropic thermal conductivity was considered, and then the equation governing thermal conduction process was transformed to a form similar to that of isotropic material. An analysis, based on a three-dimensional anisotropic thermal conductivity and a moving heat source, was presented to predict HAZ extent in laser grooving of fiber-reinforced plastic. This analysis included prediction of HAZ extent when grooving is parallel to the principal axes and when it is off-axes. The HAZ extent was determined depending on temperature difference relative to matrix combustion or char temperature. With respect to survey of previous works, this investigation is a novel attempt to analyze the extent of HAZ in FRP grooving by a CW CO2 laser. | ||
| Keywords | ||
| CW CO; Laser cutting; HAZ; fiber; reinforced plastics | ||
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