These materials, which are found in a growing number of applications to replace metal parts, are indeed difficult to machine. The use of conventional mechanical means can induce delamination within the composite material due to the pressure exerted by the tools on the material.
With laser technology, the risk of delamination is minimized thanks to the contactless machining method. Nevertheless, this material presents thermomechanical anisotropic properties (between the fiber network and the polymer matrix), and it is therefore necessary to employ the proper laser sources (IR or UV, ns or fs) depending on the desired applications.
This method allows also to perform a controlled ablation of the epoxy resin without attacking the underlying fiber network.
This technique finds application in several fields: